ORNL-TM-2780.txt

ORNL-TM-2780

Contract No. W-Th05-eng-26

REACTOR DIVISION

PRELIMINARY SYSTEMS DESIGN DESCRIPTTON
(TITLE I DESIGN)
of the
SALT PUMP TEST STAND
for the
MOLTEN SALT BREEDER EXPERIMENT

L. V. Wilson A. G. Grindell

LEGAL NOTICE

This report was prepared as an account of Government spousored work. Neither the United
States, nor the Commission, nor any person acting on behalf of the Commission:

A. Makes any warranty or repreaentation, expressed or implied, with reapect to the accu-
racy, completeness, or usefulness of the information contained in this report, or that the use
of any information, apparatus, method, or process disclosed in this report may not infringe
privatsly owned righta; or

B. Assumes any liabilities with respect to the use of, or for damages resulting {rom the
use of any information, apparatus, method, or process disclosed in this repert,

A used in the above, ‘‘person acting on behalf of the Commission” includes any em-
ployse or contractor of the C or employee of such , to the extent that
such employee or contractor of the G issi or empl of such prepares,
disgeminates, or provides acceag to, any fnformsation pursuant to his employment or contract
with the Commiasion, or his employment with such contractor.

 

 

 

 

 

DECEMBER 1969

OAK RIDGE NATIONAL LABORATORY
Oak Ridge, Tennessee
Operated by
UNION CARBIDE CORPORATION
for the
U. 5. ATOMIC ENERGY COMMISSION

 

DISTRIRUTION O THS [OCTMEST 18 TNLIMITED

 
List of Figures

List of Tables

11l

Contents

List of Contributors.

Abstract.

1.0 Introduction .

1.1 System Function .

1.2 Summary Description of the System .

1.2.
1.2.
1.2.
1.2.
1.2.
1.2.
1.3 System
.1

-3

i e e e = = A S
W W W wwww w w

1.
2.0 Detailed

O 00 g Oy 1 B oW N

1
2

3
i

>
6

Salt Circulating System.
Structure.

Heat Removal System.

Utility Systems.

Instrumentation and Controls
Hazards.

Design Requirements.

Function .

Pump Size.

Allowable Stress for Ni-Mo-Cr Alloy.
Instrumentation and Controls
Engineered Safety Features
Control of Effluents

Quality Standards and Assurance.
Test Stand Parameters.

Thermal Transients

.10 Codes and Standards.

Description of System .

2.1 Salt Pump .
2.2 Salt System .
2.2.1 Function .

2.2.2 Description.

2.2.2.1 Salt Piping .

2.2.2.2 BSalt Storage Tank and Transfer Line .

2.2.2.3 Salt Selection.

O WO @ N 0NN Oy EFE R R W W W W NN R o

o 2 2 e
N W N DR
2.3

iv

2.2.2.4 Material for Construction.
2.2.2.5 Electric Heaters

2.2.2.6 Support Structure and Stand
Enclosure . . . . . . .

Heat Removal System
2.3.1 Function
2.3.2 Description .
2.3.2.1 Heat Exchangers.
2.3.2.2 Blowers.
Utility Systems.
2.4.,1 TInert Gas
2.4.2 Instrument Air.
2.4.3 Cooling Water .
2.4.4 Electrical.
2.4.4.1 2400 Volt System .
2.h. 4.2 L480/2L40/120 Volt System.
Site Location.
Instrumentation and Controls
2.6.1 Temperature Measurement and Control
2.6.2 Pressure Measurement and Control.
2.6.3 TFlow Measurement.
2.6.4 Level Measurement
2.6.5 Alarms and Interlocks
2.6.6 Data Acquisition Computer System.

3.0 Principles of Operation .

3.1
3.2

3.3
3.4
3.5
3.6

Startup

Test Operation .

3.2.1 Prototype Pump.

3.2.2 ETU and MSBE Pumps.
Shutdown .

Thermal Transients

Special or Infrequent Operation.

Bquipment Safety .

22
25
25
25
25
26
29
29
31
31
31
31
32
32
3L
3k
34
35

35
37
39
39
Lo
40
b1
hi
Lo
Lo
Ll
4.0 Safety Precautions .
4.1 Toss of Normal Electrical Power .
4.2 Operating Procedures.
4.3 Leak or Rupture in Salt Containing Piping and
Equipment . . . . . . o . o . o 0 00 0.
4.3.1 Consequences
4.3.2 Hazards.
4.3.3 Preventive Measures.
5.0 Maintenance
5.1 Maintenance Philosophy.
5.2 Preventive Maintenance.
5.3 Maintenance Procedures.
6.0 Standards and Quality Assurance.
6.1 Codes and Standards . -« - + « « « « « v« . .
6.1.1 Design .
6.1.2 Materials.
6.1.3 Fabrication and Installation .
6.1.4% Operations
6.2 Quality Assurance .
APPENDICES
A Applicable Specifications, Standards, and Other
Publications e e e e e e e e e e e
B Pipe Line Schedule .
C Instrument Tabulation.
D Equipment Tabulation .
E Instrument Application Diagrams.
F Electrical Schematic Diagram .
G Preliminary Design Calculations.

G-I Salt Storage Tank.

G-I Heat BExchanger .

G-ITI  Temperature Transients

G-IV Pump Characteristics .

G-V Heat Removal from 1500 hp Motor

G-VI Flow Measurement Instrumentation .

b7
b7
b7
b7
k9
k9
kg
kg
50
50
50
50
50
50
51

A-1
B-1
C-1
D-1
E-1
F-1
G-1
G-2
G-3
G-6
G-7
G-8
G-10
vi

Page

G-VII  MSBE Secondary Salt Pump Operating in
Primary Salt with a Reduced Diameter Impeller . . G-16
G-VIII Summary of Pressure Profile Calculations . . . . . G-1T7

G-IX Stress Analysis . . . . .« « .+ ¢ v 4 o o . ... G221
10

11

12

13
1h

15

vii

List of Figures

 

Operating Regime of Primary Salt Pump
Schemgtic of MSBE Primary Salt Pump

Typical Characteristic Curves of MSBE Primary and
Secondary Salt Pumps

General Arrangement of Salt Circulating System
Salt Pump Test Stand Piping, Pressure Profile

Preliminary Layout (Title I) of SPTS Throttling
Valve

Preliminary Drawing (Title I) of SPTS Salt
Storage Tank

Operating Characteristics of Secondary Pump with
Reduced Impeller Diameter in Primary Salt

Preliminary Layout (Title I) of SPTS Support Frame

Preliminary Layout (Title I) of SPTS Salt-to-Air
Heat Exchanger

Preliminary Layout (Title I) of SPTS Air Handling
System

Air Handling System Characteristics
Location of Project (Y-12 Plant)
Preliminary Layout (Title I) of SPTS Venturi Tube

Thermal Transient in SPTS as a Function of Salt
Volume in the Loop and Pump

2L
2'f

28

30
33

36

43
Table

viii

List of Tables

MSBE (200 Mw(t)) Pump Design Requirements

MSBE Reactor Design Parameters Pertinent to
Salt Pumps

Salt Pump Test Stand Design Requirements

Composition and Properties of Tentative MSBE
Primary Salt

Composition and Properties of Tentative MSBE
Secondary Salt

Composition and Properties of Ni-Cr-Mo Alloy
Data for Main Blowers, Heat Removal System

Alarms, Emergencies, and Safety Actions for
Salt Pump Test Stand

19
19

23
29
45
ix

List of Contributors

 

The Oak Ridge National Laboratory contributors to this report include:

. Anderson

. Burton

. Grindell
Hyland
Koffman

. Kress

. MacPherson
. McGlothlan
. Metz

. Smith

. Stulting

H oW oW w3 "
< U Q@ 4 N H = oh Qo o

. Wilson
Abstract

A stand is required to test the salt pumps for the Molten Salt Breeder
Experiment (MSBE). It will be designred to accommodate pumps having capac-
ities up to 8000 gpm and operating with salts of specific gravities to 3.5
at discharge pressures to 400 psig and temperatures to 1300°F normally and
to 1LO0°F for short periods of time. Both the drive motor electrical supply
and the heat removal system external to the loop will be designed for 1500
hp heat removal capability. Preventive measures to protect personnel and
equipment from the deleterious effects of a salt leak will be taken.

The primary and secondary salt pumps for the MSBE will be operated
in the stand using a depleted uranium, natural lithium fluoride salt to
simuilate the MSBE primary salt. A prototype primary salt pump, procured
from the U.S. pump industry, will be subjected, at representative operating
conditions, to performance and endurance testing of its hydraulic, mechan-
ical, and electrical design features. The MSBE and Engineering Test Unit
(ETU) salt pump rotary elements, mounted in the prototype pump tank, will
be subjected to hot shakedown testing in the stand to provide final con-
firmation of high temperature performance and construction and assembly
quality prior to installation in the reactor system. As they become avail-
able the xenon-removal device and molten salt instrumentation to measure
pressure, flow, liquid level, etc., may be tested at design conditions in
molten salt and the stand will be modified, as required, to accommodate
these tests if they do not interfere with the pump program.

The preliminary system design description and the Title I design cal-
culations of the test stand are presented. Descriptions, functions, and
design requirements for compcnents and subsystems are provided. The prin-
ciples of operation of the test stand, the safety precautions, and the
maintenance philosophy are discussed. The quality assurance program plan
is being prepared.

Keywords: pump, molten salt pump, high temperature pump, pump test
stand, component development, molten salt reactor, nuclear reactor, proto-
type pump, primary salt pump, secondary salt pump.
1.0 Introduction

 

1.1 System Function

 

Reliable salt pumps are necessary to the satisfactory operation of
the Molten Salt Breeder Experiment (MSBE), and efforts to obtain them will
include operating the salt pump with molten salt in a test stand to prove
performance and endurance characteristics.

The salt pump test stand will be utilized to provide design evalua-
tion and endurance testing in molten salt of a prototype primary fuel salt
pump for the MSBE and to prooftest the rotary elements of the primary and
secondary salt pumps for the Engineering Test Unit (ETU) and the MSEE.

The salt flow and head can be varied over the desired ranges by adjusting
the throttling valve in the salt circulating system and by adjusting the
pump speed.

We presently envision that the hydraulic designs of the primary anad
secondary salt pumps will be very similar with the secondary pump operat-
ing at a higher speed. Hydraulic requirements of the primary and secon-
dary salt systems support this approach. In addition, the use of similar
hydraulic designs permits the developmental testing of both salt pumps
in this single test stand with one test salt. The salt pumps will be
obtained from the United States pump industry and the prototype pump and
the rotary elements for ETU and MSBE pumps will be installed into the test
stand in sequence. The design and procurement of these pumps and their
drive motors and auxiliary equipment are not parts of this salt pump test
stand activity, but all these activities will be coordinated.

The primary salt pump is expected to be located at the reactor core
outlet in the MSBE and thus will operate in the highest temperature salt
in the primary salt system, which is approximately 1300°F. The secondary
salt pump will be located at the outlet of the intermediate heat exchanger
and thus will operate in the highest temperature in the secondary salt
system, which is approximately 1150°F. The primary salt pump tank will
be located in a high temperature contaimment cell, which will also enclose
the primary system, and will be subjected to a high ambient temperature,
estimated to be 1100°F. In addition, it will be subjected to intense

nuclear radiation from components in the primary system, the circulating
primary salt in the pump tank, and from gas-borne fission products in the
pump tank gas space.

The prototype MSBE primary salt pump will be operated in the test
stand with molten salt over the full range of MSBE conditions of tempera-
ture, pressure, flow, and speed to prove the hydraulic, mechanical, struc-
tural, and thermal designs of the pump and to provide cavitation inception
characteristics at design and off-design operating conditions. However,
no attempt will be made to simulate all features of the high-temperature
containmment cell or to impose nuclear radiation on components in the test
stand.

Rotary elements of the primary and secondary salt pumps for the ETU
and the MSBE will be subjected to high temperature, non-nuclear prooftests
in the test stand with molten salt prior to installation intc their respec-
tive systems. At other times the stand will be used to subject the proto-
type pump to endurance operation with molten salt. It is important to the
MSBE program to demonstrate that the pump has the capability for uninter-
rupted operation with molten salt for pericds of one year or longer. Sub-
sequently, the stand will be used to study unanticipated problems that may
arise during the operation of the ETU and the MSBE. The proposed test
program is discussed in Section 3.2.

It is expected that the loop will be modified after initial pump tests

to test gas injection and gas stripping devices as they are developed.

1.2 Summary Description of the System

 

1.2.1 BSalt Circulating System

 

The salt circulating system consists of the salt pump being tested,
a throttling valve, two salt-to-air heat exchangers, a flow restrictor,
a Venturi tube, and the interconnecting piping. It provides a closed
piping loop for the molten sglt from the pump discharge to the pump suction.
A salt storage tank is provided to contain the quantity of salt necessary
to fill the circulating system. It is connected to the circulating system
by a pipe containing a freeze valve. All salt containing components will
be constructed of nickel-molybdenum-chromium (Ni-Mo-Cr) alloy. Electric
heaters capable of heating the salt system to 1300°F will be provided.

Thermal insulation will be installed on the system as appropriate.
1.2.2 Structure
The salt piping, salt storage tank, and the test pump are supported

in a structure designed to provide containment in case of a rupture.

1.2.3 Heat Removal Systenm
The heat removal system consists of two salt-to-air concentric pipe
heat exchangers, two positive displacement air blowers, an exhaust stack,

interconnecting ducting, controls,and noise abatement equipment.

1.2.4 Utility Systems

 

Necessary utility systems will be ingtalled. An inert cover gas
system is needed to protect the salt from contact with moisture and oxi-
dizing atmospheres and, if needed, to suppress pump cavitation. Instrument
air will be used to cool the freeze valve and to operate instruments.

A 2400 volt electrical distribution system will be installed to connect
the existing electrical supply in the building to the salt pump drive motor.
The existing 480 volt system will be used to supply power to the heaters,
blower motors, and auxiliary equipment. The emergency power system in
Building 9201-3 will be used to supply certain functions when normal elec-
trical power is lost.

Cooling water will be used for heat removal from the drive motor,

the lubrication system, and the shield plug coolant system.

1.2.5 Instrumentation and Controls

The instrumentation and controls required to monitor and regulate
such test parameters as salt flow, temperatures, pressures, and liquid
level will be supplied. Salt flow will be regulated with a throttling
valve and measured with a Venturi tube. Temperatures will be measured
with stainless steel sheathed chromel-alumel thermocouples. NaK-sealed
high-temperature transmitters will be used to measure circulating salt
pressures. Salt level in the storage tank will be determined by four on-
off probes inserted at different levels in the tank.

The Beckman DEXTIR data acquisition system, presently in use for
collecting data in Building 9201-3, will be used to log the more important
salt temperatures, pressures, and flows and pump power and speed.

Other test stand temperatures, pressures, flows, and powers will be

monitored and controlled with conventional eguipment.
1.2.6 Hazards

The hazards associated with the operation of the stand are chemical
toxicity, radiocactivity, and high temperature. To protect personnel from
these hazards, the locp will be completely surrounded by a sheet metal
contaimment subject to controlled ventilation. Access to the containment

will be rigidly controlled through the use of written procedures.

1.3 BSystem Design Requirements

 

Criteria have been established to obtain a test stand that will pro-
vide maximum performance and endurance information for the MSBE salt pumps

in a safe and economical manner. The criteria include:

1.3.1 Function

The pump test stand will be designed to (1) accommodate full-size
salt pumps for the MSBE primary or secondary systems, (2) provide a non-
nuclear test enviromment, (3) yield performance and endurance data to
assure satisfactory performance and reliability of the pumps and their
auxiliary systems in the MSBE, and (4) provide adequate personnel pro-
tection from all hazards. All components external to the salt loop will
be designed to accommodate pumps, up to 1500 hp, for the first prototypes

of molten salt reactor power plants.

1.3.2 Pump Size
The salt loop of the test stand will be designed specifically for

testing the pumps reguired for an MSBE with powers as high as 200 Mw(t)
and with a single loop. The pump design requirements for this power level
are shown in Table 1. The primary salt pump will be operated over the
head, flow, and speed range shown in Fig. 1. The head and flow require-
ments for the secondary salt pump permit the use of the same hydraulic
configuration as that of the primary salt pump but with a higher impeller

speed and possible minor changes in the impeller diameter.

1.3.3 Allowable Stress for Ni-Mo-Cr Alloy

 

The allowable design stresses for high temperature operation of the
Ni-Mo-Cr alloy will be those permitted in Case 1315-3 of the Interpretations
of ASME Boiler and Pressure Vessel Code.
ORNL DWG. 69-13455

N=10 7%

Q=gpm

 

Fig. 1. Operating Regime of Primary Salt Pump.
Table 1. MSBE (200 Mw(t)) Pump Design Requirements

 

 

Cover
Operating Pumping Brake Gas
Temp. Flow Head Efficiency Horse- Pressure
(°F) (gpm) (ft) (%) power  (psig)
Primary Salt Pump 1300 5700% 150 80 890 ~50
Secondary Salt Pump 1150 7000 275 80 1100 ~150

 

*Tncludes 500 gpm bypass flow through gas separator.

1.3.4 TInstrumentation and Controls

 

Instrumentation and contrcls will be provided tc monitor test stand
operation, to maintain test parameters within prescribed ranges, and to
obtain required pump test data. A control area will be provided from

which safe operation of the test stand can be maintained.

1.3.5 Engineered Safety Features

Engineered safety features will be provided. As a minimum, they will
Le designed to cope with any uncobstructed discharge from a large break in
the pressure boundary, resulting in all the salt in the loop being dis-
charged into the enclosure. The containment design basis is to contain
the pressure and temperature resulting from an accident without exceeding
the design salt vapor leakage rate for the test stand enclosure. Appro-
priate features will be provided toc protect personnel in case of an acci-
dental rupture.

An independent emergency power system is available, designed with
adequate capacity and testability toc insure the functicning of all engi-
neered safety Teatures.

Procedures will be prepared for controlled access to the enclosure.

1.3.6 Control of Effluents

 

The design of the test stand will provide the means necessary to pro-
tect personnel from toxic and radicactive effluents, whether gaseous,
ligquid, or solid. A low level radiocactivity is associated with *#°U,
232Tnh, and their prcgeny in the test salt. Control will be maintained
during normal operation and accident conditions to preclude the release
of unsafe amocunts of these effluents and to protect personnel performing

maintenance.
1.3.7 Quality Standards and Assurance

A quality assurance program is being written and will be implemented
to enhance the certainty of achieving the pump-test objectives. Systems
and components that are essential to prevent accidents that could affect
personnel safety or to mitigate their consequences will be identified and
designed, fabricated, and erected to quality standards that reflect their
safety importance. Where generally recognized codes or standards on design,
materials, fabrication, and inspection are used, they will be identified.
Where adherence to such codes or standards does not assure a quality level
necessary to the safety function, they will be supplemented or modified,

as necegsary.

1.3.8 Test Stand Parameters

 

Table 2 presents the MSBE design parameters which affect salt pump
design. The principal hydraulic and thermal design requirements for the
salt pumps, based on these MSBE design parameters, have been shown in
Table 1. The principal design requirements for the salt pump test stand,
as deduced from the MSBE requirements, are shown in Table 3. However, to
provide for the testing of larger pumps in the future, all components ex-
ternal to the salt loop will be designed for testing pumps up to 1500 hp.
This will include all alr handling systems, the electrical supply system,
and auxiliary and motor cooling systems.

Assuming that future reactor systems have thermal and hydraulic char-
acteristics similar to the MSBE, these components will be sufficient for
testing pumps of larger molten salt reactor systems up to about 250 Mw(t)
per loop, or about 1000 Mw(t) for a L loop reactor system.

Table 2. MSBE Reactor Design Parameters Pertinent to Salt Pumps

Reactor size, Mw(t) 200 (max)
Quantity of primary salt pumps, ea 1
Quantity of secondary salt pumps, ea 1
Primary salt circuit AT, °F 250
Secondary salt circuit AT, °F 300
Primary system pressure drop (estimated), psi 215

Secondary system pressure drop (estimated), psi 215

 
Table 3. Salt Pump Test Stand Design Requirements

 

Salt piping

Operating temperature 1300°F for 5 years
Operating temperature (maximum) 1400°F for 1000 hr
Pressure See Fig. 5
Primary salt flow, gpm 0 - 8000
Heat removal capability 0.9 Mw @ 1050°F
Pump motor capacity 1200 hp

 

1.3.9 Thermal Transients

Preliminary analysis of the MSBE systems indicates that the plant
can be designed to operate without large fast temperature transients.
Tf analysis of the detailed design indicates that transients outside the
capability of the test stand are likely to be experienced, the test stand
could be modified or thermal transient tests could be performed in other

facilities, such as those being constructed at the Liquid Metals Engineer-

ing Center.

1.3.1C Codes and Standards

 

Section 6.0 outlines the codes, standards, specifications, procedures,
reviews and inspections, and the quality assurance program that will be
used to design, construct, and operate the test stand. The design of the
salt containing system will be based on Section III, Nuclear Vessels,
(Class C Vessels), of the ASME Boiler and Pressure Vessel Code and on the
Code for Pressure Piping ANS1 B31.l. Approved RDT Standards will be used

for all systems and subsystems as applicable and available.
2.0 Detailed Description of System

The test stand consists principally of salt piping, a heat removal
system, utility systems, and instrumentation and controls which are de-

scribed below. The salt pump is described also.

2.1 Salt Pump

The salt pump includes its drive motor and controls and its auxiliary
lubricating and cooling systems. In the conceptual configuration, Fig. 2,
the salt pump 1s a vertical, single stage, centrifugal sump pump with an
in-line electric drive motor. This vertical pump configuration has been
used satisfactorily to pump molten salt in many component test stands,
and also in the Aircraft Reactor Experiment (ARE) and the Molten Salt
Reactor Experiment (MSRE). It is expected that the MSBE pumps will have
a similar configuration but will be larger in size. The primary salt pump
will be designed for service with highly radioactive, high temperature,
fissionable and fertile, molten salt. The secondary salt pump will be
designed for service at high temperature with a molten salt. The tenta-
tive design conditions for the MSBE primary and secondary salt pumps are
given in Table 1.

The specified design conditions for the MSBE primary and secondary
pumps are such that the same impeller and casing design can be used for
both pumps with the secondary pump operating at a higher speed. Fig. 3
shows the design points for the two pumps and the actual head-flow curves
for a pump operating at 880 rpm and the same pump with a 1% reduction in
the impeller diameter at 1180 rpm. From the brake horsepower curves of
the two pumps, see Fig. 3, 1t appears that the same rotary element design
could also be used for both pumps.

The design and procurement of the salt pumps and associated variable
speed drive motors are not part of this pump test stand activity. Their
procurement from the U.S. pump industry is directed and funded in another
portion of the MSBE program. This procurement activity will be closely

coordinated with the design, fabrication, and operation of the test stand.
10

ORNL DWG. 69-8558

—_ T

| ] I____....-—-—MOTOR

MOTOR CONTAINMENT
VESSEL

 

 

 

 

 

 

PENETRATION
& _ RING '
T ' I CRANE BAY
F _ / FLOOR

o St CONCRETE

T SHIELDING

| ———— UPPER SHAFT SEAL

—= FLEXIBLE SEALING
/ MEMBER

f—'

L

 

 

 

 

 

 

 

 

M

 

 

 

 

 

b-.

N

/fsz RING HOUSING

 

 

 

 

 

 

 

H ——LOWER SHAFT SEAL

 

 

 

| NUCLEAR SHIELD PLUG

 

 

 

 

SALT LEVEL
PUMP TANK

 

 

 

 

 

 

 

 

 

 

: REACTOR CELL
CONTRINMENT

 

 

Fig. 2. Schematic of MSBE Primary Salt Pump.
L

 

. Fig. 3.
Salt Pumps.

 

11

ORNL DWG. 69-13456

Typical Characteristic Curves of MSBE Primary and Secondary

 

 

 

 
 

 

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T)) t y N

 

 

 

(SL- Ao ol et et
IAIVA ONILLOAHL et
T
dind 11vS o

 

IO WOLVIY T 6 6 6 6 o 6 0 9 o O o o o o 9 o o
Guviie L % 82 3E LB TRZIT R

 

Salt Pump Test Stand Piping, Pressure Profile.

PIPING TRAVERSE

 

Fig. 5.
1h

2.2 Salt System

2.2.1 Function

The salt circulating system provides a closed piping locop for the
molten salt from the pump discharge to the pump suction and is shown in
a preliminary layout in Fig. k. It also provides the thermal and hydraulic
characteristics for subjecting the pump to a range of specified test con-
ditions. A tank to store salt while the pump is inoperative and equipment
to transfer salt between the storage tank and the circulating system are

provided.

2.2.2 Descriptions
2.2.2.1 5Salt Piping. The pumped salt leaves the discharge nozzle

of the pump and enters the piping which contains a fixed restrictor and
a variable restrictor (throttling valve, HCV-100) .*¥ The salt passes
through these restrictors, two concentric pipe salt-to-air heat exchangers
(HX-1 and 2), a Venturi tube (FE-100) for measuring flow, and simulated
reactor outlet piping before returning to the pump at the suction nozzle.
The pressure levels in the salt circulating system are established
by the head developed by the salt pump and the cover gas pressure in the
pump tank. Relatively small friction pressure drops will occur in the
piping loop, and relatively large pressure drops will occur in the salt
throttling valve, the flow nozzle, and the fixed restrictors. The piping
pressure profile for three primary salt flow rates is given in Fig. 5.
For a given speed the throttling valve can be used to change the flow
from approximately 50% to 125% of the flow obtained when the system re-
sistance curve passes thru the design point for the primary salt pump.
The pump will be operated from lO% to 110% of the design speed. Thus the
primary salt pump will be operated over a head-flow-speed regime approxi-
mately as shown in Fig. 1. The salt pump will be operated from the high
to the low limits of flow and speed to obtain pump data at design and off-

design conditions.

 

p ,
Component designations, e.g., HCV-100, are presented in the Instru-
ment and Piping Schematic Diagram, Appendix E.
15

‘A pipe diameter of 8 in. was selected for the circulating salt loop
as the result of studies requiring (1) a salt velocity in the pipe greater
than that anticipated in the MSEE, (2) minimization of salt inventory, and
(3) satisfactony neat transfer in the salt-to-air heat removal system.

The Ventur1 tube is . located where the seals of its attached pressure trans-

:mitters will not be exposed to subatmoSpheric ‘pressures when the pump is

‘!cavitating in the ‘high flow ranges. Also the Venturi pressures should d'
-,fnot be so high as to degrade the accuracy of”the'pressure;measuring devices.

:Thechosen location meets these requirements and also provides the recom-

i mended straight sections of pipe preceding and following the Venturi tube

Location of the throttling valve close to the pump discharge prov1des a -

lower pressure downstream from the valve to permit the use of thinner wall

fplpe for the major portion of the salt piping.

The throttling valve will be a manually Operated valve very 31milar

'to one that was developed several years ago for molten salt use at Osk

fRidge National Laboratory (ORNL) ‘One of these valves (3 1/2 in.. SlZe)

is presently in use in a molten salt test stand at ORNL and it has been

-‘operated more. than hO OOO hr. Four other valves have operated from lO 000 -
‘to 25, OOO hr. The valve design Wlll be"scaledeup to an 8 in. size as

shown in the preliminary layout in Fig. 6. Except for the inlet nozzle
the valve body will be subjected only to the valve outlet pressure of |
about 250 psig (max ). The de51gn conditions will be 300 psig at 1300°F.
The valve consists of slotted concentric cylinders that will have the
minimum AP when the- slots are aligned and the maximum AP when the slots f

are fully misaligned due to the axial diSplacement of the. inner cylinder.

| The valve stem is sealed W1th a bellows that is pressure balanced W1th

:1nert gas.

2. 2 2 2 Salt Storage Tank and Transfer Line. The Salt:storage tank

1Wlll be des1gned to contain the quantity of salt required to fill the pump
tank, all the plplng in the circulating system, the transfer line and pro-

vide a substantial gas volume. The salt in the tank can be in llquid or

s0lid form. The tank will be equipped with electric heaters capable of
iheating the tank and contents to 1200°F." The tank Which'is‘tentatively
sized hO‘in 1n diam by 10 £t long, (vol 78 cu.ft) will contain the

 

 

 

 

 
 

 

300 P51G - 1400°F | |

CLosEDPoOs ITION
oren

2 Thaver -

=

 

B
ECTION

EATERS

THRY _VALYVE

BUFFER GA

HAarRDEACH ‘.

TURAMOCOUPLES . )
| o
aLlK) SeaL '

HAND WHEEL

JACK ScrREWS

’

 

SECTION 'c-C

“ 1, VAWwE Booy DESIGN PRESSURK « SO0 PSIG AT (400°F.

Nariunl

' OMEMTED
Union Cansing Conrenasisn

MSBE 9201

FIG. 6 PRELIMINARY LAYOUT (TITLE 1}
OF $TPS THROTTLING VALVE

 
‘el

17

estimated system salt volume of 65-cu'ft'and provide for a gds space of
about 10 cu ft,‘a salt thermal‘expanSionvvolume of 2 cu ft, and a heel in

the tank of 1 cu ft. A preliminary analysis indicates that for a design

temperature of 1200°F and design pressure of 100 psig, a_ tank wall thick-
‘ness of 1/2 in. will suffice for the cylindrical portion of the tank and

5/8 in. will suffice for the torispherical heads. A prellminary‘drawing
of the salt storage tank is shown in Fig. 7. ; | :

The salt transfer llne connectlng the salt storage tank to the ‘eircu-

lating salt plplng loop will be 1 1/2 in. sched ho piping. A l_l/2\1n.

‘alr-cooled freeze valve, identlcal to freeze valves used in, the MSRE,

will be used to establish a plug of solid salt in the drain llne and thus

maintaln the approprlate salt 1nventory in the salt system Anxlllary

‘heatlng will be applied, when requlred to melt the frozen salt plug and
:permlt molten salt to flow through the transfer line from the salt plplng
‘1nto the storage tank '

- Based on experlence at the MSRE it is estimated that the freeze valve

‘can be frozen or thawed in less than 15 minutes, and the plplng 100p can -

be dralned by gravity in MS to TO mlnutes

2.2. 2 3 Salt Selectlon.: It is planned to operate the rotary elements
of both the prlmary and secondary salt pumps in the test stand using a
single salt_ldentlcal.to the reactor‘prlmary salt, except that depleted

. 2387 ingtead of enriched 235U and natural lithium instead of 711 will be

used. The cost of the test salt is significantly less than that of the

reactor primary'salt 'and'the chemical and-physical'prOperties of both
salts are. 1dent1cal Chemlcal comp051t10n and phy51cal prOpertles of the
primary and secondary salts are glven in Tables 4 and 5. |

" The head and flow requlrements for the primary and secondary salt

‘pumps are such that the same hydraulic des1gn (1mpeller and cas1ng) can’

be used for both pumps with the secondary pump running at a hlgher speed
and with minor changes in the impeller diameter. If the secondary pump

were to be run at its design speed in the primary_salt, the power and the

‘pressure_rise (not head) would be excessive. By installing an impeller

with a diameter-about 84% of the design diameter and operating at secon-

dary pump design speed with a flow of 7000 - T500 gpm the design power

 

 
 

 

18

 

 

 

  
 
 
 
 
 
 
 
 
 
  
    
  
 
 
 
 
  
   
 
        

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REAM ~ ’ ‘ PARTS LIST ) -
On no:‘z’ffl‘ “; gm‘;"w. PART | DWG NO. | REQD DESCRIPTION | sTOCK SIZE | WMATERIAL
- R . v =l Mairemrong| 3 [TORISPHERICAL WEAD (TYPE'A,ITEM ) [wasTeuov-n,
! ‘ . NOZZLES - a "1 |PLATE (TANK GYLINDER) wol tuskx ]
.|_. A-Lo0r FILL § DA -3 4 |BAR (ROUND) oA 1w
i 3 B-L00p miLL & DRAM-SPARE -4 4 |PiFE, | stA 40 chw
BApT (1Y) - Covanx Fi s orAM -5 8 |wwAGELoK = BITE HEID —ron *800-Iw-a34 316 38T
- r D-TanK FLL § DRAN-SPARE . =% 8 |[PPE, 3 S 40 ®Lg MASTELLOY-M
| B .. ‘ ' [ T 1
010 e E-smrx #LuG (8 mm) ~ -7 | [PPe, 11 ScH 40 e
L) Feoono w0 -8 I [RPE, 13 %CH 40 29 Lo
~ 8} G- « " . | -p I [PIPE.CAP, 1} SCH 40
19 L H" “ o -
- 00
e J-eas INPUT
! I3t K-GAS WPUT-SPARE
-5
19  L-gas wuxto
/A //// {ft - MrGa$ BAEED- SPARE
j— 7 . N-gas EaualLzer
6 P-rressuns MEASURE
loa )
(€ Tve_ror worzues-C, D, J, K, L MNP
U SCALES FULL  (ACKPT AS NOTER) ) . -

 

GROSS VOWUME* 78 13

APPROX EMPTY WEIGHTs 3000 LB 4 ‘
DESIGN PRESSURE <100 P5IG oia, } ogsp,
DESIGH TEMP » 1200°F I8 mm SAE TAP | DSk
OPER PRESSURE: 315 PSIG

OPER TEMMPs 1000 °F

 

 

[ 'flr—au'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1} uPT (ArTER PRESMURE
TESTING CUT § CHAMPER
NOZILE "A° SAME AS

NOTILE W WITHOUT PIPL CAP,

   

 

\ /B Tve ror nozzs-EF,G,H
\___/ SCAL P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<
1
1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

f—_,lh ) : *—-—’i@tr}-—-— .
wod : ' ._m K _.:r_
' ALt o
120 o
‘ AREFERENCE DRAWINGS ] numsen
TMLE
SRAR VA AWY ~ | 048 ioac MaTondc Listiimey
sons Yos | ‘ Gaten Caxaine Carronation
QK MOGE, TENNESSEE
S, MSBE o 9201-3
om@ - — 0 Psrnan o ot o oo g o ":E:;.:":'._ . — e frTemsTs| FIG. 7 PRELIMINARY DRAWING (TITLE 1)
e e pam I e ety B s e | e e TR == == ="|OF 5?15 SALY STORAGE TANK
: [ e s | T e st Decuser w T SR, o e t° B R N Wi S L]
WTRANAL DNMCATION ™ SN oY Y0 I ron o n o aw |3 MACHINED SURFACE FresH | e .
" e B o oot oF ThE T wfl?{_m uV'mk_' Lo Sm | oA | e | W | o | e - I I ]ll |

 

 

 

 

 

 

 

 

 

 

 

T WAST WD uté-b

 

 

 
19

Table 4. Composition and Properties of
Tentative MSBE Primary Salt

 

 

Composition Salt Mole %
LiF T1.7
BeF, 16
ThF, 12
UF, 0.3
Density: o(1b/£t3) = 235.11 - 0.02328 t (°F) + 5%

204.9 1b/ft2 at 1300°F; 210.7 1b/ft® at 1050°F

Viscosity: b (centipoise) = 0.080 exp 4340/T (°K) + 25%
b (1b/ft-hr) = 0.1935 exp 7812/T (°R)
16.4 1b/ft-nr at 1300°F, 34.18 1b/ft-hr at 1050°F

Heat Capacity: 0.324 Btu/1b °F, 2%
Thermal Conductivity: 0.75 Btu/hr-°F-ft + 15%

Melting Point: 930 °F £+ 10°F

 

Table 5. Composition and Properties of
Tentative MSBE Secondary Salt

 

Composition: oalt Mole %
NaBF, 92
NaF 8
Density: p(1b/ft8) = 142.6 - 0.0257 t (°F) (& 5%)

113 1b/ft8 at 1150°F; 120.8 1b/ft3 at 850°F

Viscosity: u (centipoise) = 0.0877 exp 2240/T (°K), (+ 10%)
b (1b/ft-hr) = 0.2121 exp 4032/T (°R)
2.595 1b/ft-hr at 1150°F; 4.605 1b/ft-hr at 850°F

Heat Capacity: 0.360 Btu/1b-°F, + 2%
Thermal Conductivity: 0.266 Btu/hr-ft-°F, + 50%

Melting Point: T25°F (& 2°)

 
20

and pressure rise would be obtained as shown in Fig. 8 (see Appendix G-VII).
By operating a secondary pump with a full size impeller at primary salt
pump speed and a flow of 5500-6000 gpm, the impeller itself would be sub-
jected to design torques.

The cavitation inception of the secondary pump with the secondary
salt can be predicted with assurance from the water tests to be performed
by the pump manufacturer and from the salt tests with the primary pump.

The effects of differences in viscosity between water, primary salt,
and secondary salt are very small for pumps with Reynolds numbers greater
than 2 x 108%, The Reynolds numbers for the MSBE pumps are greater than
107 whether pumping water or salt.

There are certain minor hazards associated with the use of the simu-
lated primary salt. Of primary concern is the toxicity of the beryllium
during routine maintenance of the pump and in the event of a leak in the
loop. Other components of the salt are less toxic than the beryllium.
There is also a radiation hazard primarily due to a relatively soft gamma
emitted by the thorium and its decay products. We estimate the dosage
rate to be about 10-15 mrem/hr at the surface of the storage tank when
all the salt is in the tank. In case of a leak there will alsc be some
alpha and beta emission. The company industrial hygienists and health
physicists propose that the containment be operated at a slight negative
pressure and provided with filtration of the effluent. This proposal
will be incorporated into the design. Operation and maintenance procedures
will be prepared in consultation with them.

If it were desired to test the secondary pump with secondary (sodium
fluoroborate) salt in the loop, the primary salt would be replaced with
a flush charge of secondary salt. The flush charge would be pressurized
into the loop and the pump operated for a short time. After draining
the flush charge into the storage tank, it would be replaced with the

operating charge of sodium fluorocborate.

 

*
Stepanoff, "Centrifugal and Axial Flow Pumps,” 2nd Edition, p. 315.
21

ORNL DWG. 69-13458

 

Fig. 8. Operating Characteristics of Secondary Pump with Reduced
Impeller Diameter in Primary Salt.
22

2.2.2.4 Material for Construction. Design of the salt-containing

 

piping and all salt wetted parts is based on the use of the Ni-Cr-Mo alloy
that was used to construct the salt system in the MSRE and that is the
base material for the MSBE. The composition and properties of this alloy

are given in Table 6.

2.2.2.5 Electric Heaters. ZElectric heaters, capable of heating the

 

salt storage tank to 12C0°F and all other salt-containing piping and equip-
ment to 1300°F, will be provided. Additional electric heaters will be pro-
vided on the main loop piping and heat exchangers to be used during thermal
transient tests. The heaters will be 115 v and 230 v tubular type and
ceramic heaters. In general, the heaters will be operated at approximately
50% of their rated wattage.

Manually operated variable voltage circuits will be provided to con-
trol the power to the preheat heaters. "Off-on" type manual control is
proposed for the thermal transient test heaters, Sec. 3.4; however, a
study will be made to determine conformance with heat transfer and stress
conditions.

Ammeters will be provided for measuring the current in each heater
circuit. Operation of the heaters will be monitored by temperatures

obtained from thermocouples mounted on the surface of all heated components.

2.2.2.6 Support Structure and Stand Enclosure. The salt piping and

 

test pump are supported in a steel structure, also designed to provide
containment in case of a salt spill. A preliminary layout of the support
frame is shown in Fig. 9. The top, sides, and bottom of the structural
steel framework are lined with sheetl metal panels for contalmment. Most

of the panels are welded in place but some of them are screwed and gasketed
to provide maintenance access. There are steel access doors at both ends
of the structure. Three protected windows are installed for inspection
purposes and the interior of the enclosure will have floodlights. An
exhaust blower is attached to the enclosure to provide a negative pressure
of sufficient magnitude to give air velocities of 150-200 fpm through all
openings in the enclosure. All openings, such as the valve access, exhaust
blower duct, etc., have either baffles or bellows seals to prevent the

egress of salt in case of a spraying leak.
 

ol

23

 

Table 6.  Composition and Properties of Ni-Cr-Mo Alloy™

Chemical Properties:

Ni
Mo
Cr
Fe;‘fiax
‘Ac» .
‘T4 + Al, max
| S, max :
Physical Properties:
Density, 1b/in.2
Melting-Point, °

- 66-T1%

15-18
6-8

.
0.04-0.08
0.50

Thermal conduct1v1ty,
Btu/hr- ft2-°F/ft at 1300 F

Modulus of elastlcity at 1300 F, psi o
Specific heat, Btu/lb-“F at 1300°F

Mean coefficient of ‘thermal expansion,
T0-1300°F range,‘in./in.-°F

Mechanlcal Properties

Max1mum allowable stress,b psi:

Mn, max
S5i, max
Cu, max
B, max
W, max
P, max

CO, max

at  1000°F

1100°F
1200°F

l300°F;>

O 0 0 0o 0 K H

.0% |
.0
.35
.010
.50
015
.20

©0.317
2hT10-2555
2.7

4.8 x 108

.~ 0.138

8.0 x 108

17,000
13,000
"6 000

3,500

 

Commercially available as "Hastelloy N" from Haynes Stelllte'
Company, and from Internatlonal Nickel Company, and All Vac Metals |

- Company .

ASME'Boiler and Pressure Vessel Code, Case 1315-3.

 

 

 
 

, . 2l

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b | L . HARES LIST |
. : [ ParT Towa NO. | REQD | DESCRIFTION | STOCK SZE | MATERIAL
PUM P | REMOVABLE COVERS (&)
f T \ : TT— ! =1\ 1 _3
]— }
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b oM \\ ! ) - Gxé
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140" | ™ / :
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( \ ;;:4; NV
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; 1,k : T = T T
st * -.?0" -‘E
s 84" 9tol — 9%0" &0
. — 33-/°
34-3

 

 

 

 

i
; .

FRAME TOTALLY ENCLOSED BY-
/G GAGE SHEET STEEL WELDED TO FRAME,

PENETRATIONS § ACCESS PANELS BOLTED §GASKETED,
ACCESS DOORS DOG LATCHED € GASKETED,

THROTTLING VALVE . HEAT EXCHANGER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

%?xdl PENETRATION ‘_ DUCT PENETRATIENS
z ———— ‘
it L F ; 5 ' Lo
l I'Z 1; . / L ( Y
! ! ACCESS : ) ! )
\ I RPAYIE L 1 ' 1 :
| ! 4-044-0 : b ALIESS = /
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. 81 : 110 I ' ' =% : l
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" I ' )
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WINDOW 5 CCESS I 8W-‘2~: ! WIND S W E Q <l—-T— : : ‘E:ND Wi
% 4?::%5 7:0" : | ' : | | eSS
ACCESS c ! 3 i 8-0° DPOR
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DOOR, : : i/GV\F , : 504703
70:‘6-61 ELEV. ' | fswc- ' — 1} GRATIN G | xdr2je i
946-07 l A 1 nssmend —— i 1 5 i .
P ratcalok i s : Sl
] REFERENCE DRAWINGS | wusgen
Oax Rinaz Mariasal Lussatoay
OPEMTED &Y

Uniox Carsisk Cagraaation
w&m
MS BE ne29201+3

welwraTors] FIG. 9 PRELIMINARY LAYOUT (TITLE 1)

 

 

 

‘GENERAL SPECIFICATIONS | Touwioes waEss
W MPRLMNTATION BR WAMMMTY, DIFRESMD O WPLED, I SuOE UNLESS OTHERWISE SPECIFIED: OTHENINSE SPECINED:

METHOR OR FROCESS DROCLOSER IV THERE SUAWINRE SAY WOV Bl | ], BREAK ALL SHAAP EDGES | FRACTIONS &
FRIRTE TS OF GTIERS. O LWPLITY 10 Asvarco WM MAPSCT T | 3 Typr GRADE, OR FINISH OF

 

 

 

 

 

 

wx | OF SPTS SUPPORT FRAME

BATE
THE UBE OF, OR FOR DAMABES REMATHeR Plubes twe UBE OF, ANV mmu"m”t;mu -uw"‘l?-b’
BY SARRICATOR. T WENTTED A

n“umml-w:: 5 MACHINED SURFACE fewsy |WOLES & . —

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(ASA 6. 1-1962)

 

 

70 50 RIS Vo WKWK 68 T FomRMEN GRMTMACTOR mmm—“/' mé“.'floo- T Wt
l

AR
- ~Mli0359 [rm[oo2Tse] |

 

 

     
25

2.3 Heat Removal System

2.3.1 Function

The power supplied by the pump to the circulating salt is dissipated
in heating the salt. The function of the heat removal system is to remove
from the circulating salt that portion of this heat necessary to maintain

the desired operating temperatures of the salt system.

2.3.2 Descriptions
Without heat removal the maximum pumping power of 1200 hp for the

primary salt pump would railse the temperature of the circulating salt
12°F/min and 26°F/min for system salt volumes of 65 cu ft and 30 cu ft,
respectively. During the conceptual design phase, several different heat
removal systems, were investigated to provide a tolerable noise level,
reasonable physical size, safety, economical and simple construction and
operation, and minimum maintenance. OSystems investigated included (1)
thermal convection salt-to-air radiator, (2) forced circulation salt-to-
air radiator, (3) salt-to-steam heat exchanger, and (L) forced convection
salt-to-air heat exchanger with and without water mist. The last method

without water mist was the most suitable and was chosen for the design.

2.3.2.1 Heat Exchangers. A preliminary design was prepared for

 

the heat exchangers subject to the following design conditions or limi-

tations:
Salt flow rate 8000 gpm
Pump power 1200 hp
Salt temperature 1050°F and 1300°F
Salt pipe size 8 in. (Sch. 40)
Maximum air velocity 900 fps
Air inlet temperature 150°F
Air flow rate, total 10,000 cfm
Maximum air side AP 3 psi
Number of heat exchangers 2

Two separate, ildentical heat exchangers (HX-1 and EX-2) will be used to

reduce the size of the alr blowers and the resulting noise level, to
26

simplify heat exchanger design, and to provide flexibility in the oper-
ation of the test stand. The use of two heat exchangers is also consistent
with the test stand layout.

A computer program was modified for performing the heat transfer ana-
lysis of the preliminary design (see Appendix G-2), a concept of which is
shown in Fig. 10. Salt flows through the 8 in. pipe and cooling air is
blown through the concentric annular flow passage. The length of each
heat exchanger is calculated to be 16 ft and the annulus 0.D. is 10.500 in.
(.938 in. annular gap).

The preliminary heat exchanger design was based on the maximum pump-
ing power of 1200 hp when operating at 110% speed and 125% flow. Subse-

guent calculations for the final design will be made for this power level.

2.3.2.2 Blowers. Air is used as the cooling medium and is forced
through appropriate ducting and the annulus of each of the two salt-to-air
concentric pipe exchangers by separate positive displacement blowers.

After the air leaves the heat-exchangers it is discharged through a stack
into the atmosphere at approximately 400°F. A preliminary layout of the
air handling system is shown in Fig. 11.

Positive displacement blowers were selected because of their relia-
bility, economy, and capability to move large guantities of atmospheric
air against a relatively high pressure drop. Blower data are shown in
Table 7.

The blowers (B-1 and B-2) and drive motors will be installed outside
the main test building (Bldg. 9201-3) to reduce the noise level in the
area around the test stand. They will be housed in an acoustically treated
building to reduce noise in the area adjacent to the test building. In
addition, blower intake and discharge silencers will be installed to re-
duce the noise level, and the intake air will be filtered.

The pressure rise-flow and the brake horsepower curves for the blowers
and the estimated air system resistance curve are shown in Fig. 12. When
the by-pass valves (HV-145 and HV-146) are closed, the system will be oper-
ating at point "A." As a bypass valve is opened, the flow through the by-
pass valve will be the difference in the system resistance curve and the
blower P-Q curve and the remainder of the flow will pass through the heat

exchanger.
 

P

 

 

 

 

F o . ) o . : oo ‘ ! . . o I . . PARTS LIST . . ‘
o . . o ’ ., | PART | DWG NO. | REQD DESCRIPTION [ STOCK SIZE | MATERIAL

 

 

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29

Table 7. Preliminary Data for Each Main Blower,
Heat Removal System

 

Type Positive displacement
Gas handled Atmospheric air
Inlet volume, acfm 5300

Inlet temperature, °F 85

Discharge temperature (est.), °F 145

Inlet pressure, psia 4.7

Pressure rise, psi 5

BHP required 138

Approximate weight, 1b 11,000

Motor, hp 150

Motor speed, rpm 900

Sound level, db 80~90

 

Consideration was given to the use of two surplus blowers located
at the Experimental Gas Ccoled Reactor (EGCR) and the manufacturer was
asked for an estimate for refurbishing the blowers to meet ocur require-
ments. The estimate was a great deal more than the cost of procuring the

new positive displacement blowers which we have decided to use.

2.4 Utility Systems

The test stand will be provided with the necessary inert gas, instru-

 

ment air, cooling water, and electricity for the operation of the stand
and the salt pump. Argon, helium, and instrument air of appropriate quality
and sufficient quantity are available in the test building. The electrical
capacity available in the bullding is sufficient to supply all the test

stand and salt pump requirements.

2.4.,1 Inert Gas

An inert cover gas is used to protect the primary salt from contact
with moisture and oxidizing atmospheres. It is used to pressurize the
pump to prevent cavitation, to pressurize the salt storage tank and there-
by transfer the salt into the salt circulating system, and to reduce the

pressure differential across the bellows of the salt throttling valve.
30

ORNL DWG. 69-13459

 

Fig. 12. Air Handling System Characteristics.
31

Inert gas from two sources will be used. An 80 psig supply will provide
inert gas for most applications. A 250 psig supply station utilizing high-
pressure cylinders of either argon or helium will be made available. Neces-
sary piping, valves, and instrumentation will be provided to conduct inert
gas to the appropriate locations. The Instrument Application Diagram,

Inert Gas Supply System is shown in Appendix E.

2.4.2 Instrument Air
Dry instrument air will be used as a coolant for the freeze valve
(HV-129) in the salt transfer line (line 200) and for operating instruments.

This air will be obtained from the Y-12 instrument air supply.

2.4.3 Cooling Water

Cooling water will be required for the removal of heat from the pump
drive motor, the pump lubricant system, and the pump shield plug cooling
system. A brief study was made of the economics of using a cooling tower
versus using Y~12 Plant process water. A cooling tower for dumping 75 hp
(a 95% efficient 1500 hp motor) would cost about $15,000 to install.
Operating and mgintenance costs would add to this figure. Y-12 process
water to dump the same amount of heat for 5 years would cost about $6000.

Thus, Y-12 process water will be used for cooling. (See Appendix G-V).

2.4.4 Electrical

The principal electrical systems for the experiment are shown 1in the
Electrical Schematic Diagram, Appendix F. Present building facilities
include a 13.8 kv bus of sufficient capacity to supply a 1500 hp drive
motor, a 480 v bus duct available to supply the preheaters and all the
auxiliary equipment, and a 480 v diesel-driven generator system available

to provide emergency power during normal power outages.

2.4h.h.1 2L00 Volt System. A new 2400 volt electrical distribution

 

system will be installed outside the building to connect the power supply
to the pump drive motor and will provide for a motor as large as 1500 hp.
The new system will be cohnected to the existing 13.8 kv bus and will con-
sist of (a) one 1200a, 13.8 kv oil circuit breaker, (b) 350 MCM, 15 kv
cable, (c) 1500 kva, 13.8/2.4 kv 3¢ transformer, (d) 1200a, 2.4 kv reduced
voltage starter equipment, and (e) 300 MCM, 5 kv cable connected to the

pump motor.
32

The existing 13.8 kv bus is located in the southeast corner of the
building. The transformer and starter equipment will be outdoor type and
will be located at the west side of the building. Connecting cables will

be run in conduilt.

2.4 4.2 L4B0/2L0/120 Volt System. All heaters and auxiliary equip-

 

ment will be fed from the existing 480 v system. Transformers will be
provided to supply 240 v and 120 v where necessary.

The heat exchanger blower motors (B-1 and B-2) and pump lube oil equip-
ment will be supplied directly from the 480 v bus through combination motor
starters. Seven circuits feeding 480 - 120/240 v transformers will supply
power to the salt piping and equipment heaters. Additional circuits will
supply 120 v power to miscellaneous equipment.

Power to the pump lube cil equipment, instrumentation, salt freeze
valve (HV 129), pump shield plug cooling system, stand enclosure blowers,
and air sampling heads will be automatically supplied by the building
emergency diesel generator in the event normal electrical power is lost.

Return to normal power will be by manual operation.

2.5 Site Location

The test stand containing the salt circuit will be located at the
west end of the second floor of Building 9201-3 in the Y-12 Plant, Oak
Ridge, Tennessee. The cooling air blowers and auxiliaries will be located
on the ground level outside the west end of the building. See Figs. L,
11, and 13 for salt circulating system, air handling system, and plant
location, respectively. This location in the building was chosen because
it (1) meets the stand requirements with very few building modifications,
(2) provides convenient access to existing pump maintenance facilities,
(3) permits installation of the large blowers (B-1 and 2) and the heat
removal system stack outside the test building, and (L) is available with
minimum renovation and disturbance to other test stands and shops.

A traveling bridge crane, with 20-ton and 5-ton hoists, serves the
area. A l-ton jib hoist is also available to provide additional hoisting

capability when needed.
ORNL DWG. 69-8561

 

 

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Fig. 13. Location of Project (Y-12 Plant)

ee
34

Additional second floor support columns under the area of the test
stand will be required to support the estimated test stand weight of
approximately 80,000 1b.

2.6 Instrumentation and Controls
See Appendix E, Instrument Application Diagrams for a detailed pre-

sentation of instrumentation and controls.

2.6.1 Temperature Measurement and Control

 

Approximately 144 stainless steel sheathed, insulated junction,
chromel-alumel thermocouples will be used to monitor temperatures on the
pump test section, on heat exchangers, in air systems, and for loop heater
control. The thermocouples will be connected to the reference junctions
at the control cabinets by double shielded chromel-alumel extension lead
wire, with the sheath being grounded at the thermocouple end only. Temper-
atures will be read out on available multipoint strip chart recorders and
indicating controllers. The more important temperatures will alsc be read
out on the DEXTIR data logging system (described in Sect. 2.6.6), and on

a 100 cycle per second oscillographic recording system.

2.6.2 Pressure Measurement and Control

 

The pump tank cover gas pressure will be used as a measure of the
pump inlet pressure. Pairs of NaK sealed high-temperature pressure trans-
mitters will be used to measure loop pressures at the pump outlet (PT-131
and PT-140) and at the outlet of throttle valve HCV-T5 (PT-73 and PT-Th).
The seals (PX-131, PX-140, PX-73, and PX-T4), which will be rated at 40O
psig, will have to be obtained and will be long delivery items, possibly
up to two years. The seals and pressure transmitters are being installed
in pairs to avoid costly delays should one of them fail. The outputs
from all the pressure transmitters will be read out on the DEXTIR but the
outputs from PT-140 and PT-73 will be read out on single point strip chart
recorders.

To protect the throttle valve bellows seal, which requires a balanced
pressure between the salt and inert gas, the outputs from PT-73 and PT-T72
will be used to regulate the gas pressure to the bellows. The outputs
from PT-74 and PT-T72 will be used for an alarm in case the differential

pressure across the bellows becomes excessive.
 

35

Cover gas pressure, lube‘oil pressures, and air pressureS'Will be
read on=conventional gauges and controlled by pressure switches, SOlenoidl
'valVes;and hand‘valves. Differential pressures‘across filters IFS-1, IFS-2
“and the CWS filter w1ll be measured by locally mounted gauges PdI l3h
PaI-135, and PAI-136.

2. 6 3 FlOW'Measurement | L . ‘ -
Maln 1oop salt flow in the range of 3ooo to 8000 gpm will: be deter-
mined by measuring the differential pressure of the truncated Venturi |
tube (FE lOO) shown in Fig. 14, The individual pressures will be measured
with redundant NaK sealed pressure transmitters PT-1, PT-2, PT-3, and PT-h._
The differential pressure will then be deduced frOm the outputs of PT-2
and PT-3 ‘with PT-1 and PT i being used as spares  The resultant output
will be presented on a single-point strip chart recorder and on DEXTIR
To avoid calibration problems, the seals PX-l, PX-2, PX-3, and PX-h Wlll -
also be rated at hOO psig - j"_ ‘W: o L j‘”
| Instrument air flow to the freeze valve (HV 129) will be read on
panel mounted rotameter FI- lll.“ The measurement of lube o0il flow to the
salt pump will be included in the lube 01l package FlOW'measurements
are not planned for the enclosure exhaust air or the cooling air to the
heat exchangers HX-l and HX-E. |

2.6. 4 Level Measurements _
| Salt level in the storage tank will be determined by four on-off
probes 1E- 92, LE-93, 1E- 9L, and LE 95 ‘at different levels in the tank. .
Salt level will be indicated by the on-off position of four 1ndicat1ng
lights '

- 2.6.5 -Alarms and Interlocks

The strip chart recorders, indicating controllers, and pressure

 

switches will have low and high signal switch contacts for control and
alarm (see Section 3.6) purposes. Alarms will be indicated by a bell
and_existing annunciator panels with lighted windows that show abnormal
conditions before and after acknowledgment and normal conditions before °
and after‘reset, Scram action will be provided as appropriate, either
simultaneously_with the alarm or at a desired increment above or below

the alarm setting.

 

 
 

 

 

 

 

SECTION A-A

 

 

  

 

36

 

 

 

 

 

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SECTION B-B”

 

FIG. 14 PRELIMINARY LAYOUT (TITLE 1)
OF SPTS VENTURI TUBE
37

2.6.6 Data Acquisition Computer System

This system is presently installed in Building 9201-3 and is used
for monitoring and recording data for experiments now being performed.

The system consists of a Beckman DEXTIR data acquisition system interfaced
to a Digital Equipment Corporation PDP-8 computer which has a core memory
of 4096 twelve-bit words. Conversion of the data to engineering units

is done on-line, and all data are digitized and recorded on magnetic tape
for further processing by the ORNL IBM 360/75 computer. A large library
of programs is available to process these tapes.

The data acquisition computer system can provide a listing of data
in engineering units at the test stand. It has a capacity of 2500 analog
and 2500 digital inputs and has a speed of 8 channels per second. Overall
accuracy is =% 0.0T% of full scale, resolution is one part in 10,000, and
the input signal range is 0-10 millivolts full scale to 0-1 volt full
scale in three programmable steps.

Data gathering boxes, each with 25 analog and 25 digital channel
capacity, can be plugged into the "party line" cable at any point in the
network. Digital input capability is provided by both thumbwheel switch
and contact input modules. The modules can accept decimal or binary coded
decimal contact closures from counters, clocks, frequency meters, digital
voltmeters, and other devices that have digital outputs. Thermocouple
reference junction compensation is provided for all thermocouple inputs.

The PDP-8 computer software consists of a real time multiple task
executive system, with four levels of priority interrupt. The highest
priority level is assigned to protection of the operating system in case
of power failure. The second priority is assigned to the processing of
data, the third to keyboard input, and the fourth to printer output.

Another package of computer programs performs the engineering units
conversion tasks and such utility functions as punching tape, reading tape,
entering data into memory, listing the contents of specified memory loca-
tions, clearing specified memory locations, etc.

A disk file is being added that will provide an additional 32,000
words of bulk storage and will permit the individual experimenter to have

his own program for on-line calculations and teletype plots.
38

The salt pump test stand will require the installation of two addi-
tional data gathering boxes and the preparation of a program for on-line
calculations and graph plotting. The input to the DEXTIR from the test
stand is indicated with the nomenclature EDP on the Instrument Application

Disgrams, Appendix E.
39

3.0 Principles of Operation

 

The prototype pump tank and all the salt pump rotary elements will
be operated in a depleted uranium, natural lithium version of the MSBE
primary salt. Operation of the rotary element of the secondary salt pump
at its design head and flow conditions with the denser primary salt would
overload the pump drive motor and overpressurize the salt system piping.
Therefore, we plan to operate the secondary pump rotary element at its
design speed and temperature, but with a slightly reduced diameter im-
peller (about 8&% design diameter) which will load its motor to rated
power and will stress the coupling, bearings, and shaft to their respective
design levels without overstressing the salt piping system. This general
philosophy was used to proof test the fuel and coolant salt pumps for the
Molten Salt Reactor Experiment (MSRE). The hydraulic performance charac-
teristics for the salt pumps will be obtained during water tests conducted

by the pump menufacturer.

3.1 Startup

A1l the facility and test components, assemblies, and systems will
be inspected individually and collectively prior to startup. These in-
spections will be made to check conformance to approved drawings, speci-
fications, and standards.

While at room temperature the salt system will be purged with inert
gas, evacuated to remove oxygen and moisture, and refilled with inert gas.
The lubrication system and shield plug cooling systems will be started.
The mechanical performance of the salt pump and drive motor will be ob-
served during operation with inert gas while preheating to 1200°F. The
salt system including the drain tank will be preheated to the desired
temperature {normally 1200°F). During preheating, the salt system will
be evacuated and then refilled with inert gas several times to reduce
moisture and oxygen levels even further. The salt pump will be rotating
during preheating to assist in giving a more nearly isothermal condition
throughout the loop.

With the pump off, the salt storage tank, previously filled with
molten salt, will be slowly pressurized with inert gas to transfer salt

into the pump loop until the proper salt level has been reached in the
4o

pump tank. The freeze valve will be established to hold the salt in the
system. The required flow rates of inert purge gas will be established
and the appropriate pressure on the surface of the system salt will be
obtained. Finally the salt pump will be started and functional checks

will be made on all systems for proper performance.

3.2 Test Operaticn
When the salt pump and all test stand systems are performing satis-

factorily, the following salt pump test program will be initiated:

3.2.1 Prototype Pump

1. The mechanical performance of the salt pump and drive motor will
be observed for any abnormal behavior such as excessive nolse or vibration.

2. The design of the drive motor and cooling system and the drive
motor support system will be proven.

3. The lubrication system for the salt pump and the provisions for
handling shaft seal oil leakage will be checked.

4. The transient characteristics of pump speed and salt flow during
startup and coastdown will be determined.

5. The hydraulic performance and cavitation inception characteristics
of the salt pump will be obtained over a range of pump speeds and salt
flow rates and temperatures.

6. The relationship of the purge gas flow in the shaft annulus to
the back diffusion of fission products from the pump tank to the seal
region will be determined.

T. The maximum salt void fraction that the pump will tolerate will
be determined. Measurements will be made of the void fraction in the
circulating salt due to gas entrained from the gas space by the salt by-
pass flows within the pump.

8. The effect of operating the pump with insufficient salt, to the
point of the start of ingassing, will be studied.

9. The production of zercsols of salt in the prototype pump tank
during pump operation will be checked as will any aerosol removal device
needed to protect the off-gas lines and components from plugging by aero-

sol deposition.
L1

10. The pump bowl cooling system will be evaluated.

11. Demonstration tests of Incipient Failure Detection (IFD) devices
and systems will be made. Pump menufacturers will be requested to recom-
mend IFD devices and systems to indicate a substantial change in a pump
operating characteristic that might point to an impending failure of some
pump component. Parameters that may yield significant reliability infor-
mation include pump power and speed, shaft vibration and displacement,
and noige signatures of the pump at various operating conditions.

12. Any other meaningful tests recommended by the MSBE pump manu-
facturer will be performed.

13. After all specific short term tests have been completed, long
term endurance test runs will be performed.

14. The characteristics of the pump with the gas injection and re-
moval devices, which will be used to remove xenon 135 from the MSBE circu-
lating salt, will be verified in salt. Nozzles will be installed on the

salt piping to accommodate these devices.

3.2.2 ETU and MSBE Pumps

 

Rotary elements of the primary and secondary salt pumps for the ETU
and the MSBE will be subjected to high temperature, non-nuclear prooftests
in the salt pump test stand prior to installation into their respective
systems. These tests will prove the high-temperature performance and the

construction and assembly quality of the rotary elements.

3.3 Shutdown

Shutdown of the system will be initiated by turning off the salt
pump and the air blowers. The salt will be drained into its storage tank
by thawing the freeze valve and equalizing the gas pressures in the pump
and storage tanks. After the salt is drained from the system, the pump
will be rotated for & short time to sling off any salt clinging to the
impeller. The electric heaters will be turned off and the system will
be permitted to cool to room temperature. The lubrication system and
shield plug cooling system will be turned off when the pump Temperature
is reduced to near room temperature. An inert gas atmosphere will be

maintained in the loop. When the system is cool it will be ready for
L2

maintenance of components or for removal of the salt pump in accordance

with the necessary procedures.

3.4 Thermal Transients

 

The test stand has a limited capability for performing thermal tran-
sient tests. For both heating and cooling, Fig. 15 shows that the attain-
able rates of temperature change depend greatly upon the amount of salt
in the loop and pump. At present it is estimated that the minimum salt
volume in the system will be about 35 cu ft. The cooling transient 1is
obtained by using maximum salt system cooling and reducing the salt pump
speed to obtain about 10% of the design flow. The heating transient is
obtained by turning off the salt system cooling and turning on all the
electric heaters on the loop and pump while the pump is operating at 110%
of design speed and the loop throttling valve is wide open.

A larger cooling thermal shock also can be applied to the pump in
the test loop as follows: With the pump motor stopped, the temperature
of the pump impeller and casing and salt in the pump tank can be maintained
at approximately 13C0°F, while the salt in the loop piping is lowered to
about 1000°F. To reduce natural convection the throttling valve would be
"closed." After opening the throttling valve, the salt pump would be
brought up to design speed within 2 to 3 seconds, and the cool salt from
the piping would displace the hot salt in the fully loaded pump impeller
and casing. Thermal stresses in the salt piping appear to be acceptable;

see Appendix G-9.

3.5 OSpecial or Infrequent Operation

 

In addition to the previcusly outlined pump test operation, the test
stand will be operated to:

1. Obtain the characteristics of instrumentation for measuring salt
flow and pressure as required.

2. Study problems which may arise during the operating life of the
ETU or MSBE.
 

Fig. 15. Thermal Transient
the Loop and Pump.

3

ORNL DWG. 69-13460

in SPTS as a Function of Salt Volume
L

3.6 Equipment Safety

Several pump and test stand operating parameters will be monitored
continuously to provide for the safety of the salt pump, test stand, and
test personnel. These parameters will include pump power, speed, and
lubricant flow; salt temperature, flow, and liquid level; pump tank cover
gas pressure; pump and test stand vibration; air blower power and oil
pressure, and shield plug and drive motor coolant flow. Table 8 presents

a list of the emergency conditions and the actions to be taken.
L5

Table 9. Alarms, Emergencies, Safety Actions for
Salt Pump Test Stand

 

 

Loss of normal electric Start emergency power Close cooling air valve.

power Drain salt to storage
tank.

High pump power Stop pump and blower  Schedule A.ar

High liquid level in pump Stop pump and blower  Drain salt to storage.
Adjust preheaters.

Low liquid level in pump Stop pump and blower  Schedule A.
Salt leak (low liquid level) Stop pump and blower.
Drain salt to storage.
Low salt piping temperature Decrease cooling air
flow.
High salt piping temperature Increase cooling air

flow or reduce pre-
heater power.

High or low pump tank Stop pump and blower  Schedule A.
pressure
High temperature at Increase cooling air
freeze valve flow. Reduce hesgter
power.
Low salt flow Stop pump and blower  Schedule A.
High amplitude vibration Stop pump and blower  Schedule A.
Pump motor stops Stop blower Schedule A.
Heat transfer system Stop pump Schedule A.
blower motor stops
Enclosure exhaust blower Stop pump
stops
Heat transfer system Stop blower
blower low o0il pressure
Loss of pump lubricant Standby pump switched
flow on
Loss of shield plug Standby pump switched Stop pump and blower.
coolant flow on Drain salt to storage.
Schedule A.
High valve bellows AP Adjust gas pressure.

 

83chedule A: 1. Close the bypass valves in the cooling air duct.
2. Adjust system preheaters.
L6

 

4.0 Safety Precautions

A preliminary safety analysis of the pump test stand was made to iden-
tify potential accidents and the consequences and to deduce methods to pre-

vent accidents and minimize the consequences.

4.1 Loss of Normal Electrical Power

Loss of electrical power will cause the salt pump motor, cooling air
blower motors, and preheaters on the salt piping and equipment to cease
operaticn. Salt in the salt circulating system will become stagnant and
will cool from the normal cperating temperature of 1300°F. To prevent
salt from freezing (~930°F melting point) in the piping and the pump, it
must be drained into the salt storage tank. Since solid salt in the freeze
valve can be thawed most quickly with electric heaters, a reliable, emergency
source of electric power is required. The emergency power source consists
of a diesel-driven 300 kw electric generator located in Building 9201-3,
which has been in backup duty for 12 years. It is operated once each week
to maintain readiness.

During power failure the emergency power supply will also be used to
operate the blowers for enclosure exhaust and air sampling, salt pump lubri-

cation and shield plug cooling systems, and appropriate instrumentation.

.2 Operating Procedures

 

Instrumentation, including alarms, interlocks, and other safety devices,
will be installed to minimize operating errors that could affect personnel
safety or result in damage to equipment. In order to minimize further such
errors the operation of the test stand will be under the supervision of
technical personnel experienced in the operation of molten salt systems.

They will use instructions contained in carefully written procedures to
startup, operate, and shutdown the test stand. Assistance in preparation
of test procedures, in test stand operation, and in the execution of the
salt pump test program is expected from engineers assigned by pump manu-

facturers who participate in the MSBE salt pump program.
7

4.3 Leak or Rupture in Salt Containing Piping and Equipment

 

L.3.1 Consequences
a. Leak. High pressure could jet a small stream of molten

salt a distance in excess of 10 ft.

b. Rupture. Large quantities of molten salt could flow onto
the floor in the immediate vicinity of the test stand.

c. Salt vapors and particles could be picked up by cooling
air and released from the exhaust stack, if the salt pipe ruptures inside
the heat exchanger air cooling jacket.

d. Cooling air could blow vapors and partiicles over a large
area inside the building, if the salt pipe and the heat exchanger air

cooling Jjacket are ruptured.

4.3.2 Hazards

a. Toxic effects of beryllium to personnel. Beryllium pre-
sents the main chemical toxicity problem of all the components in the
test salt.

b. The effects of high temperature burns to personnel.

c. The ignition of fires in combustible material and equip-
ment in the surrounding area.

d. The effects of low level nuclear radiation to personnel

due to the presence of uranium and thorium in the salt.

4.3.3 Preventive Measures

 

a. Salt-containing equipment will be designed, procured, and
fabricated according to applicable high-quality standards.

b. The salt containing equipment will be enclosed within a
sheet-metal structure having a top, sides, and bottom to contain molten
salt leakage. The enclosure protects personnel from burns, prevents the
salt leak vapors from contaminating areas adjacent to the test stand, and
provides a controlled radiation hazard area.

c. An exhaust system, operating continuocusly, will be pro-
vided to ventilate the test stand enclosure. The air will be filtered
to reduce the concentration of the salt vapors to a safe level before it

is discharged into the outside atmosphere.
L3

d. At least 7 air sampling stations will be provided inside
the enclosure, in the exhaust stacks, and in the immediate area around
the test stand. The air sampling stations will be monitored daily for
the presence of beryllium by the Industrial Hygiene Department. Air in
the Y-12 general area is monitored continuously for beryllium and other
materials.

e. In the event of a molten salt leak, interlocks and alarms
will be provided in the control system to shut off the circulating salt
pump and the cooling air blowers. Salt will be drained from the system
piping into the salt storage tank by manual contrcl. The drain line is
not a safety feature and the drain time is not critical. The design of
the stand enclosure will provide adequate containment for the leakage of
all the salt inventory. The liquid level indicator in the pump tank will
be used to detect large salt leaks, and smaller leaks will be detected by
air sampling, as indicated in Item d above.

. In the event of a simultaneous leakage of salt and the
failure of the filter in the enclosure ventilation system the enclosure
blower would be shutoff immediately to prevent the spread of unfiltered
effluent. The industrial hygienists would be alerted immediately to take
proper administrative action including evacuation of the building. The
salt would be permitted to freeze in the enclosure and the procedures for
its removal after freezing would be implemented.

g. The salt spill cleanup procedure, developed previously

for use in Building 9201-3, will be followed in case of a salt leak.
49

5.0 Maintenance

 

5.1 Maintenance Philosophy

 

Design, fabrication, egquipment selection, and installation work will
be directed toward the goal of obtaining highly reliable equipment. The
equipment will be installed in the salt pump test stand with critical
equipment monitored continuously and shut down for maintenance when failure
is impending. Symptons of impending failure may be detected by visual and
audio observations and by pressure, temperature, flow, vibration, and other
diagnostic instrumentation. Experience has indicated that symptoms of im-
pending equipment failure usually develop sufficiently far in advance to
permit the scheduling of maintenance activities without excessive outages

or equipment damage.

5.2 Preventive Maintenance
Certain instruments and equipment, and in particular the ones with
moving parts, will be checked and serviced on a routine basis. Appropriate

instrumentation will be checked and recalibrated between test runs.

5.3 Maintenance Procedures

 

Procedures and controls that have been used satisfactory in the past
will be adapted to protect personnel performing maintenance within the
loop enclosure. Of concern are the toxicity effects of some of the salt

components and the radiation hazards of others.
50

6.0 Standards and Quality Assurance

 

6.1 Codes and Standards

 

6.1.1 Design

Specific requirements have been determined for the salt pump test
stand, as stated in Section 1.3. These requirements have been approved
by the Molten Salt Reactor Project and Laboratory Management. Experienced
and qualified designers will be assigned to the task, and when detail
drawings are completed, they will be reviewed for function, safety, and
construction. ZEngineering standards and procedures in the area of design
have been established and are given in Appendix A. In general, the require-
ments specified in Section III for Class C vessels of the ASME Boiler and
Pressure Vessel Code and in the Code for Pressure Piping USAS B31.1 will
be used in the design of the salt containing system. A complete piping

stress and flexibility analysis will be made.

6.1.2 Materials

The Ni-Mo-Cr alloy selected for the salt containment will be purchased
with existing ORNL MET materials specifications developed for the MSRE and
with RDT standards as applicable. Other material will be purchased with
ORNL MET, RDT, and ASTM standards and specifications, as applicable. The

proposed material specifications are given in Appendix A.

6.1.3 Fabrication and Installation

 

High quality welding, quality control, inspection procedures, and a
record system, as defined by the SPTS Quality Assurance Program Plan will
be used to fabricate and install all the salt-containing equipment. Other
fabrication and installation procedures developed by Oak Ridge National
Laboratory will be used as required. The applicable procedures are given

in Appendix A.

6.1.4 Operations
Step-by-step instructions contained in carefully planned procedures,
developed by engineers experienced in molten salt pump operation at ORNL,

will be used during startup, operation, and shutdown of the pump test stand.
51

6.2 Quality Assurance

The Quality Assurance Program Plan, M-10559-BM-100-A-0, is being

 

prepared to provide a system that will operate satisfactorily. Its pre-
paration is based on RDT Standard F 2-2T, Quality Assurance Program

Requirements.
Appendix A
MSBE Salt Pump Test Stand
Applicable Specifications, Standards, and Other Publications

 

Progrem Standards

 

RDT F 2-2T7 (6/69) Quality Assurance Program Requirements

Design Standards (including all referenced standards)

 

ASME Boiler and Pressure Vessel Code: Section III, Nuclear Vessels,
plus Addends and ASME Case Interpretations 1315-3.

ORNL Standard Practice Procedures: 8PP 16 (Safety Standards) and
SPP-12 (Design and Inspection of Pressure Vessels)

ASME USAS B3L.10 - 1967 Power Piping, USA Standard Code for Pressure
Piping

ASME PTC 19.5; L-1959, Part 5, Chapter 4, Flow Measurement

USAS National Electrical Code, CI-1968

National Electrical Code Handbook

TEEE Standards

National Electrical Manufacturers Associgtion Standards

Material Standards (including all referenced standards)

 

RDT M 1-15 (Draft) (4/69) Ni-Mo-Cr Alloy Bare Welding Filler Metal
(Modified ASTM B30L)

RDT M 2-11 (Draft) (4/69) Ni-Mo-Cr Alloy Forgings
RDT M 2-12 (Draft) (4/69) Ni-Mo-Cr Alloy Factory-Made Wrought
Welding Fittings (Modified ASTM B366)

RDT M 3-17 (Draft) (4/69) Ni-Mo-Cr Alloy Welded Pipe
(Modified ASTM A358)

RDT M 3-18 (Draft) (4/69) Ni-Mo-Cr Alloy Seamless Tubes
(Modified ASTM B163)

RDT M 3-10 (Draft) (L4/69) Ni-Mo-Cr Alloy Seamless Pipe and Tubes
(Modified ASTM B167)

RDT M 5-8 (Draft) (4/69) Ni-Mo-Cr Alloy Sheet and Plate
(Modified ASTM BL3L)

RDT M 7-11 (Draft) (4/69) Ni-Mo-Cr Alloy Rod and Bar
(Modified ASTM B366)

ASTM A-36 Structural Steel, Rev. 61T
A-2

Fabrication and Installation Standards (including all referenced standards)

 

MSR-62-3, Rev. A - Fabrication Specifications, Procedures, and Records
for MSRE Components
Note: This standard will be modified for use in constru-
cting the pump test stand.

PQS-1402)
WPS-1402)

MET-WR-200 Procedures for Inspection of Welding of High Nickel Alloys

Welding of Nickel Molybdenum, Chromium Alloy

RDT F 2-2 T (6/69) Quality-Assurance Program Requirements
RDT F 3-6 T (3/69) Nondestructive Examination

ROT ¥ 5-1 T (3/69) Cleaning and Cleanliness Requirements for Nuclear
Reactor Components

RDT F 6-1 T (2/69) Welding - with Addendum for Welding Ni-Mo-Cr
 

 

 

 

 

Appendix B
M.S.B.E. SALT PUMP TEST STAND
PIPE LINE SCHEDULE
Line Designationa Operating Conditions Extent of Line
Pressure Temperature
Size (psig) (°F}
No. (in.) Description Max. Max. Fluid Origin Termination
1 Gas Cylinder Station (Supply System) Argon Line No. 2 Vacuum Pump
2 Gas Cylinder Station (Supply System) Argon Line No. 1 Line No. 4
3 Gas Cylinder Station (Supply System) Argon Line No. 1 Line No. 5
4 Gas Cylinder Station {(Supply System} Argon Emergency Argon Cylind- HV-49
ers
5 Gas Cylinder Station (Supply System) Argon Normal Argon Cylinders HV-49
6 Gas Cylinder Station (Supply System} Argon Line No. 4 Line No. 10
7 Gas Cylinder Station (Supply System) Argon Line No. 5 Line No. 10
8 Gas Cylinder Station (Supply System) Argon Line No. 6 HV-56
9 Gas Cylinder Station (Supply System) Argon Line No. 7 HV-57
10 Gas Cylinder Station {Supply System} Argon Line No. 8 Line No. 15
11 HCV-75 Valve Bellows Gas Control 200 70 Argon Line No. 10 HCV-75 Valve Bellows Gas
Control
12 Gas Cylinder Station (Supply System) Argon HV-70 HV-78
13 Gas Cylinder Station (Supply System} Argon Line No. 11 Vent
14 Gas Cylinder Station (Supply System) Argon Line No. 12 Vent
15 Gas Cylinder and/or Building Argon Supply Argon Building Argon Header Line No. 27
16 Pump Cover Gas Supply 60 70 Argon Line No. 15 Salt Pump (F)
17 Pump Bowl Argon Supply Argon Upstream HV-81 Downstream HV-90
18 Pump Bowl Argon Supply Argon Line No. 16 Line Ne. 17
19 Lube Oil System Cover Gas Supply 60 70 Argon Line No. 15 Pump Lube Oil Package
20 Lube Oil Package Argon Supply Argon Upstream HV-6 Downstream HV-10
21 Lube Oil Package Argon Supply Argon Line No. 19 Line No. 29
22 Lube Oil Package Argon Supply Argon Line No. 20 Line No. 21
23 Lube Oil Package Argon Supply Argon Line No. 19 P4T-9
24 Lube Qil Package Argon Supply Argon ILine No. 19 Pds-15
25 Pump Bowl Argon Supply Argon PdT-9 Line No. 26
26 Pump Bowl Argon Supply Argon Line No. 16 PdS-15
 

Linc Designation

Operating Conditions

 

Pressure Temperature

Extent of Line

 

 

Size (psig) {(°F)

No. (in.} Description Max. Max. Fluid Crigin Termination

27 Salt Storage Tank Gas Supply 60 70 Argon Line No. 15 Salt Storage Tank (S ST)

28 Salt Storage Tank Argon Supply Argon Upstream HV-101 Downstream HV-107

29 QOff Gas Header Argon Line No. 310 Line No. 308

30 Gas Equalizing Line 60 1300 Argon Salt Storage Tank (8 ST) Line No. 16

31 Vacuum Line Salt Storage Tank (5 ST) Vacuum Pump

32 Storage Tank Fill 0 1300b Salt® Portable Salt Tank Storage Tank (S ST)

33 Freeze Valve Cooling Inlet 70 Inst., Air Instrument Air Bldg. Freeze Valve HEV-129
Header

34 Freeze Valve Cooling Outlet 0 ~200 Inst. Air Freeze Valve HfV-129 Atmosphere

35 Air Sampler Heat Exchanger Inlet ~50 100 Water Bldg. Cooling Water Header Heat Exchanger HX-3

36 Air Sampler Heat Exchanger Qutlet 200 Water Heat Exchanger {HX-3) Drain

37 16 Heat Exchanger No. 1 Outlet ~2. 600 Air Heat Exchanger Qutlet Exhaust Stack (S-1)
(HX-1)

38 16 Heat Exchanger No. 2 Outlet el 600 Air Heat Exchanger Outlet Exhaust Stack (S-1)
(HX-2)

39 14 Heat Exchanger No. 2 Inlet 5 200 Air Blower Discharge Silencer Heat Exchanger (HX-2) Inlet
(DsS-2)

40 8 Blower No. 2 Pressure Unloading & Relief 5 200 Air Line No. 39 Valve HV-146 & Silencer

4] 12 Blower Discharge Silencer No. 2 Inlet 5 200 Air Blower {B-2) Blower Discharge Silencer

{D5-2)

42 16 Cooling Air Blower No. 2 Inlet 0 85 Air Blower Intake Filter & Blower (B-2)
Silencer (IFS5-2)

43 12 Heat Exchanger No. 1 Inlet 5 200 Air Blower Discharge Silencer Heat Exchanger (HX-1) Inlet
(DS-1}

44 8 Blower No. 1 Pressure Unloading & Relief 5 200 Air Line No. 43 Valve HV-145 & Silencer

45 12 Blower Discharge Silencer No. 1 Inlet 5 200 Air Blower (B-1) ?lgwe)r Discharge Silencer

DS-1
46 16 Cooling Air Blower No. 1 Inlet 0 85 Air Blower Intake Filter & Blower (B-1)

Silencer (IFS-1)

c=d
 

. . . a
Line Designation

Operating Conditions

Extent of Line

 

Pressure Temperature

 

Size {psig) (°F)

No. (in.) Description Max. Max. Fluid Origin Termination
47 Pump Bowl Argon Supply Argon Line No. 16 Line No. 29

48 Lube Oil Package Argon Supply Argon Line No. 19 Line No. 29

49 Salt Storage Tank Argon Supply Argon  Line No. 27 Line No. 29

50 Salt Storage Tank Argon Supply Argon Line No. 27 Line No. 29

100 8 Pump Outlet 400 1300b Salt® Pump Qutlet {P) Throttling Valve HCV-75
101 8 Heat Exchanger 1 Inlet 150 1300b Salt® Throttling Valve HCV-75 Heat Exchanger (HX-1)
102 12 Heat Exchanger 2 Inlet 150 1300b Salt® Heat Exchanger (HX-1) Heat Exchanger (HX-2}
103 12 Pump Inlet 150 1300b salt® Heat Exchanger (HX-2) Pump Inlet (P)
200 i-1/2 Fill and Drain 150 1300b Salt® Salt Storage Tank (S ST) Line No. 103
300 Area Air Sampler Header Vacuum ~150- Air Air Sampler Head {ASH-3)} Line No. 304
301 Enclosure Air Sampler Vacuum ~150 Air Air Sampler Head {ASH-4) Line No. 304
302 Area Air Sampler Vacuum 85 Air Air Sampler Head (ASI1-6) Line No. 304
303 Area Air Sampler Vacuum 85 Air Alr Sampler Head (ASH-7) Line No. 304
304 Enclosure Air Sampler Vacuum ~150 Air Air Sampler Head (ASH-5) Exhaust Blower (B-4)
305 Stack No. 1 Air Sampler (ASH-1) Vacuum ~600 Air Exhaust Stack No. 1 Heat Exchanger (HX-3)
306 Stack No. 1 Air Sampler (ASH-1) Vacuum ~150 Air Heat Exchanger (HX-3) Exhaust Blower {B-5)
307 Stack No. 2 Air Sampler (ASH-2) Vacuum ~150 Air Exhaust Stack No. 2 Exhaust Blower (B-5)
308 Enclosure Exhaust Vacuum ~150 Air Test Stand Enclosure Exhaust Blower (B-3)
309 Enclosure Exhaust ~1 ~150 Air Exhaust Blower (B-3) Exhaust Stack (S-2)
310 Pump Vent System Argon Line No. 313 Line No. 29
311 Pump Vent System Argon Upstream HV-16 Downstream HV-23
312 Pump Vent System Argon Line No. 310 Line No. 311
313 Pump Vent System Argon Salt Pump Line No. 310
314 Pump Vent System Argon 11-24 Line No. 29
315 Pump Vent System Argon Upstream HV-25 Downstream HV-34
316 Pump Vent System Argon Line No. 314 Line No. 315
317 Pump Vent System Argon Salt Pump LI-24

 

ARefer to Instrument and Piping Schematic Diagram in Appendix.

bPlus 1000 hr at 1400°F.

CPrimary Salt.

£-d
Appendix C

Instrument Tabulation
MSBE Salt Pump Test Stand

 

 

Ngzgir Name Manufacturer fifiifiir
DE-161 Punp Inlet Density Element ORNL
DM-1614A Pump Inlet Density - DE-161 Keithley 415
Picoammeter
DM-161B DE-161 Power Supply Elec. Res. Assoc. 2.5/10VC
DM-161-C Pump Inlet Density - Detector to ORNL
Preamp Amplifier
DM-161D Pump Inlet Density Amplifier Dymec 2360A
DM-161E Pump Iniet Density - Galvanometer Honeywell TEFASCOAZ,
Anmplifier
DR-161 Pump Inlet Density Recorder Visicorder 11.08
DX-161 Pump Inlet Density Source ORNL: U0 curie cesium
EwM-96 Power, Lube 0il Motor, Converter Foxboro 693AR
EwM-97 Power Pump Motor, Converter Foxboro 693AR
EwM-98 Power, Bl Motor, Converter Foxboro 693AR
EwM~G9 Power, B2 Motor, Converter Foxboro 693AR
EwR-96 Power, Lube 0il Motor Foxboro 6LoOHR
EwR-97 Power, Pump Motor Foxboro 6L20HF
EwR-98 Power to Bl Motor Foxboro 6420HF
EwR-99 Power, B2 Motor Foxboro EL20HF
EwT-96 Lube 0il Pump Thermal Watt L&N 10730
Converter
EwT-97 Pump Motor Thermal Watt L&N 10730

Converter
 

 

Ni;figi Name Manufacturer Efiifiir
EwT-~98 B2 Mctor Thermal Watt Converter &N 10730
Bwl-99 Bl Motor Thermal Watt Converter L&N 10730
FA-54 Salt Flow Hi Annunciator Spec. I.8. 18-5
FA-5B Salt Flow Lo Annunciator Spec. I.S. 18-5
FE-100 Salt Flow Truncated Venturi To be designed and
calibrated
FI-104 Flow Argon to SST Variable Area Spec. I.S. 25-11
Meter
FI-111 Air to Freeze Valve Variasble Spec. I.8. 25-11
Area Meter
FR-5 Salt Flow Recorder Honeywell Class 15 - Single
FR-22 Pump Off-Gas Flow Recorder Honeywell Class 15 - Multi
FR-32 Seal Bleed Flow Recorder Honeywell Class 15
FR-89 Gas Flow to Pump Bowl Recorder Honeywell Class 15
FS-5A Salt Flow Hi Switch Foxboro 63V-CC
FS-5B Salt Flow Lo Switch Foxboro 63V-CC
FT-22 Pump Off-Gas Flow Transmitter Hastings LL-500, H500
¥T-32 Seal Bleed Flow Transmitter Hastings LL-500, H500
FT-89 Gas Flow to Pump Bowl Transmitter Hastings LL-500, H500
HCV-31. Seal Bleed Flow Metering Valve Hoke D3381FL4B
HCV-85 Argon to Pump Bowl Flow Metering Hoke D3381FLB
Valve
HCV-106 Argon to SST Metering Valve Hoke D3381F4B
BV-6 Gas to Lube 0il Upstream Block Hoke D3361¥L4B
C-3

 

 

Ttem Model
Number Name Manufacturer Number

HV-10 Gas to Lube 011l Downstream Block Hoke D3361F4B
Valve

Hv-13 Gas to Lube 0il Bypass Valve Hoke D3381F4B

HV-1L Lube 0il Gas Manual Vent Valve Hoke D3381FLB

HV-16 Purtp Off-Gas to Cleanup System Hoke D3361F4B
Valve

HV-17 Pump Off-Gas Cleanup System Bypass Hoke D3381F4B
to Stack Valve

HV-18 Pump Off-Gas Back Pressure Hoke D3381FLB
Control Bypass Valve

HV-19 Pump Off-Gas Back Pressure Hoke D3361FLB
Contrcl Inlet Block Valve

AV -23 Pump Off-Gas Back Pressure Hoke D3361F4B
Control Outlet Block Valve

HV-25 Off-Gas X26 Filter Upstream Hoke D3361F4B
Block Valve

HV-27 Off-Gas X26 Pilter Downstream Hoke D3361FLB
Block Valve

HV-28 Off-Gas XP6 Filter Bypass Valve Hoke D3381FL4B

HV-29 Seal Bleed Back Pressure Control Hoke D3361FLB
System Block Valve

HV~-33 Seal Bleed Accumulstor Flow Hoke D3361F4B
Control Bypass Valve

HV-3k4 Seal Bleed Flow Control System Hoke D3361FLR
Outlet Block Valve

HV-39 Argon to 250/80 Regulator from 250 Hoke D336LFL4B
Header Valve

HV-43 Hi to Lo Argon System d.s. Block Hoke D3361FLB
Valve

HV-48 Standby Argon Manifold to Vac. Pump Hoke

Valve
C-k

 

 

Nfigng Name Manufacturer %fiigir

HV-49 Standby Argon Header Block Valve Victor

HV-50 Reguliar Argon Header Block Valve Victor

HV-51 Regular Argon Manifold to Vac. Pump Hoke
Valve

HV-52 V.S. Block Valve for PIV-45 Victor

HV-53 V.S. Block Valve for PIV-L6 Victor

HV-54 Block ds PIV-46 Victor

BV-55 Block ds PIV-L6 Victor

HV-56 Vent ds PIV-L5 Hoke D3361FLB

HV=-5T Vent ds PIV-L46 Hoke D3361F4B

HV-T70 250 Argon to Exp. Block Valve Hoke

HV-T6 Argon to Tarottle Valve Pressure Hoke D3361FLB
Balance Control System

"V-77 Manual Bypass Valve, Gas to Valve Hoke D3381F4B
Bellows

HV-T8 Gas to and from PCV-57B and C Hoke D3361FLB
Bellows Pressure Balance System Valve

HV-T9 Manual Gas Vent from Bellows Valve Hoke D3381F4B

HV-81 Argon to Pump Pressure Control Hoke D3361F4B
System Valve

HV-86 Pump Gas System Downsitream Block Hcke D3361F4B
Valve

HV-87 Argon to Pump Bypass Valve Hoke D3381FLB

HV-88 Argon to Pump F.T. Inlet Bypass Valve Hoke D3361FL4B

HV-90 Argon to Pump F.T. d.s. Block Hoke D3361FLB

HV-91 Argon to Pump Bowl Bypass d.s. Block Hoke D3361FLB

Valve
C~5

 

 

Nigggr Name Manufacturer %fiizir
HV-101 Argon to PV-102 Block Valve Hoke D3361FL4B
Hv-105 SST Gas Control Bypass Valve Hoke D3381FLB
HV-106 Argon to SST V.P. Block Valve Hoke D3361FLB
HV-107 SST Gas Control System Outlet Block Hoke D3361FLB

Valve
HV-109 98T Vent Valve Hoke D3361FLB
HV-120 Equalizing Line Pump to SST Valve Hoke D3361F4B
HV-121 Seal Bleed Accumulator Drain Valve Hoke D3381F4B
LA-130A Pump Salt Hi Level Alarm I.8. 18-5
LA-130B Pump Salt Lo Level Annunciator I.8. 18-5
LE-92 SST Level Probe To be designed
LE-93 SST Level Probe To be designed
LE-9L SST Level Probe To be designed
LE-95 SST Level Probe To be designed
LI-2k Pump Seal Bleed Catch Pot Level Pemberthy X508(2)
LI-92 SST Level Indicator ORNL To be designed
LI-93 SST Level Indicator ORNL To be designed
LI-9L SST Level Indicator ORNL To be designed
LI-95 SST Level Indicator ORNL To be designed
LR-130 Pump Salt Level Recorder Foxboro 6L20HE
LS=-130A Pump Salt Hi Level Switch Foxboro 63VCC
18-130B Pump Salt Lo Level Switch Foxboro 63VCC
c-6

 

 

Tten Model
Number Name Manufacturer Number

PA-15A Lube 0il Pump Bowl Delta-P Hi Spec. I.S. 18-5
Annuncigtor

Pa-15B Lube 0il Pump Bowl Delta-P Lo Spec. I.S. 18-5
Ammuncistor

PA-36 Facility 80 Argon Low Pressure Spec. I.S. 18-5
Annunciator

PA-LL Standby Argon Manifold Low Pres- Spec. I.S. 18-5
sure Annunciastor

PA-58 Normal Argon Manifold Lo Pressure Spec. I.S. 18-5
Anmuncistor

PA-59 250 Argon Lo Pressure Annuncistor Spec. I.S. 18-5

PA-60 250 Argon Hi Pressure Annunciator Spec. I.8. 18-5

PA-T71A Valve Bellows Hi Delta-P Annunciator Spec. I.5. 18-5

PA-T71B Valve Bellows Lo Delta-P Annunciator Spec. I.8. 18-5

PA-Q2A Pump Bowl Hi Pressure Annunciator Spec. I.8. 18-5

PA-92B Pump Bowl Lo Pressure Annunciator Spec. I.S. 18-5

Pac-9 Delta-P Lube 0il/Pump Bowl Foxboro 62H-5E-0
Controcller

PAC-T1 Valve Bellows Delta-P Controller Foxboro 62H-5E-0

PaCv-9A Argon to Lube 0il Control Valve Research Controls B1510

PaCv-9B Argon Vent from Lube 0il Control Research Controls  B1510
Valve

PACV-T1A Gas to Valve Bellows Contrcl Valve Research Controls B1510

PACV-T1B Gas from Valve Bellows Control Valve  Research Controls B1510

PAI-13k Press. Across C.W.S. Filter Meriam

PaI-135 Differential Pressure Indicator for Barton

IFS-1
C-T

 

 

Item Model

Number Name Manufacturer Number

PAI-136 Differential Pressure Indicator for Barton
IFS-1

PAM-9 Tube 0il Gas Control Current to Air Foxboro 63PAL
Converter

PAM-13G Bellows Salt Side Pressure Converter Foxboro 693AR

PAR-9 Lube 0il Pump Differential Pressure Foxboro 6L20HF
Recorder

PAR-T1 Valve Bellows Differential Pressure Foxboro 6420HF
Recorder

Pds-15 Lube Oil Pump Bowl Differential Pres- Barton 289
sure Switch

PaT-5 Flow Venturi Differential Pressure Foxboro 66CT-0
Transmitter

PAT-9 Lube 0il Pump Bowl Differential Foxboro 613DL
Pressure Transmitter

PAT-71 Valve Bellows Gas/Salt Differential Foxboro 66CT-0
Pressure Transmitter

PAT-139 Alternate Bellows Differential Pres-  Foxboro 660T-0
sure Transmitter

PAav-30 Seal Bleed Flow Control Regulsator Moore 63BU

PAV-8L Delta-P Across HCV-52G Argon to Moore €3RU
Pump Bowl Flow Control Regulator

PI-8 Gas to Lube 0il Press. Control Ashcroft 1220A8E + 1278
Gage

PI-11 Argon out of PCV-51 to Lube 0il Gage  Ashcroft 1220ASE + 1278

PI-20 Pump Off-Gas Back Pressure Control Asheroft 122CASE + 1278
Inlet Gage

PI-L1 Emergency 80 psi Argon Regulator Ashcroft 1220ASE + 1278
Outlet Gage

PI-80 Gas Side of Valve Bellows Gage Asheroft 1220ASE + 1278
c-8

 

 

Nizgzr Name Manufacturer fifiggir

PI-83 Argon out of PV-50A to Pump Bowl Asheroft 1220ASE + 1278
Gage

PT-103 Cutlet of PV-102 Gage Asherof't 1220ASE + 1278

PI-110 Gas Vent Back Pressure Gage Ashcroft 1220ASE + 1278

PI-117 Argon to SST Gage Ashcroft 1220ASE + 1278

PI-132 Outlet B-1 Gage Ashcroft 1220A8E 1278

PT-133 Qutlet B-2 Asheroft 122CASE 1278

PI-14k4 80 psi Argon at Experiment Gage Asherof't 1220ASE + 1278

PI-145 Standby Argon Manifold Gage Asheroft 1220BSE

PI-1L46 Normal Argon Manifold Gage Ashcroft 1220BSE

PI-162 Cell Pressure Gage Ashcroft

PIV-L45 Standby 250 Argon Regulator Victor GD20AA6DEDLA+SY

PIV-46 Normal 250 Argon Regulator Victor GD20AA6DEDLA+HSY

PM-T1 Valve Bellows Control Current to Foxboro 63PAL
Air Converter

PM-T73 Salt Side Valve Bellows Transmitter Foxboro 693AR
Converter

PR-2 Flow Upstream Pressure Recorder Foxboro 6420HF

PR-3 Flow Throat Pressure Recorder Foxboro 6L420HT

PR-T2 Valve Bellows Gas Side Pressure Foxboro 64oCHF
Recorder

PR-73 Valve Bellows Salt Side Pressure Foxboro 6L20HF
Recorder

PR-92 Pump Bowl Pressure Recorder Foxboro 6L2OHF

PR-140 Pump Outlet Pressure Recorder Foxboro 6420HF

PS-36 Low 80 psi Argon Header Pressure Barksdale D1H-A150

Switch
c-9

 

 

Item Model
Number Name Manufacturer Number

PS-bLl Standby Argon Manifold Lo Pressure Barksdale SoL8-L4

Ps-58 Normal Argon Manifold Lo Pressure Barksdale goL8-4
Switch

Ps-59 250 Argon Hi Pressure Switch Barksdale BIT-H12

PS-60 250 psi Argon Lo Pressure Switch Barksdale BIT-H12

PS-T1A Valve Bellows Delta-P Hi Switch Foxboro 63U-CC

Ps-T1B Valve Bellows Delta-P Low Switch Foxboro 63U-CC

PS-924 Pump Argon Hi Pressure Switch Foxboro 63U-CC

PS-92B Pump Argon Lo Pressure Switch Foxboro 63U-CC

PSvV-12 Tube 011l Overpressure Relief Valve Grove 155BP2

PSV-42 200 to 80 psi Argon System Over- Circle Seal
pressure Relief Valve

PSV-L7 Argon Header Vacuum Pump Over- Grove 61
pressure Relief Valve

Psv-108 Argon to SS8T Overpressure Relief Grove 155BP2
Valve

Psv-137 Argon to Pump Bowl Overpressure Grove 155BP2
Relief Valve

PT-1 Salt Flow Upstream Alternate Taylor Special
Pressure Transmitter

PT-2 Salt Flow Upstream Pressure Trans- Taylor Special
mitter

PT-Spare Spare for PT-1, PT-2 Taylor Specilal

(1 & 2)

PT-3 Sait Flow Throat Pressure Trans- Taylor Special
mitter

PT-4 Salt Flow Throat Alternate Pressure Taylor Special

Transmitter
 

 

Item Model

Number Name Manufacturer Number

PT-Spare Spare for PT-3, PT-L Taylor Special

(3 & 4)

PT-'72 Valve Bellows, Gas Side Foxboro 611GM

PT-73 Valve Bellows, Salt Pressure Teylor Special
Transmitter

PT-74 Valve Bellows Salt Alternate Pres- Taylor Special
sure Transmitter

PT-Spare  Spare PT-T73, PT-TL Taylor Special

(73, T4)

PT-92 Pump RBowl Pressure Transmitter Foxboro 6110M

Pr-131 Pump Outlet Pressure Transmitter Taylor opecial

PT-1k0 Pump Outlet Alternate Pressure Taylor Special
Transmitter

PT-Spare  Spare for PT-131, PT-140 Taylor Special

(131, 140)

PV-7 Argon to Lube 0il Pressure TFisher 67-15
Regulator

PV-21 Pump Off-Gas Back Pressure Grove 155
Regulator

PV-L0O 250 psi Argon to 80 psig Header Fisher 67-15
Pressure Regulator

P-82 Argon to Pump Bowl Pressure Fisher 67-15
Regulatoer

PV-102 Argon to SST Pressure Regulator Fisher 67-15

FX-1 Seal for PT-1 Taylor 103

PX-2 Seal for PT-2 Taylor 103

P{-Spare Seal for Spare (1, 2) Taylor 103

(1, 2)

PX-3 Seal for PT-3 Taylor 103
C-11

 

 

Ni;ggf Name Manufacturer %figgir

PX-4 Seal for PT-4 Taylor 103

PX~-Spare  Seal for PT-Spare (3, L) Taylor 103

(3, 4)

PX-T3 Seal for PT-T3 Taylor 103

PX-Th Seal for PT-Th Taylor 103

P{-Spare Seal for Pr-Spare (73, Th) Taylor 103

(73, Th)

PX-131 Seal for PT-131 Taylor 103

PX~-140 Seal for PT-140 Taylor 103

PX-Spare  Seal for PT-Spare (131, 1L0) Taylor 103

(131, 1kL0)

PX-(Ovens) Ovens for Pressure Transmitter ORNL To be designed

10 required

PM-2 PT-2 Converter Foxboro 693AR

PM-3 PT-3 Converter Foxboro 693AR

SA-138A Pump Lo Speed Spec. I.3. 18-5

SM-138 Pump Speed Counter T.5.I. 361R

SR-138 Pump Speed Recorder Honeywell (lass 15

S8-138 Pump Speed Switch Lo Honeywell

TA-143 Freeze Valve Hi Temperature Spec. I.S. 18-5
Annuncistor
TC Connectors, Leadwire, etc. Various

TE- 144 Thermocouples Spec. I.S. 12L-3

TI-149 Miscellaneous Temp. Honeywell Prec. Inc. L8

TIC-141 Freeze Valve TC-547 Temperature

Control
C-12

 

 

Ni;;:r Name Manufacturer fifiizir
TR-151 Temperature Recorder Honeywell Class 15
TR-152 Temperature Recorder Honeywell Class 15
TR-153 Temperature Recorder Honeywell Class 15
TR-154 Temperature Recorder Honeywell Class 15
TR-155 Temperature Recorder Honeywell Class 15
TR-156 Temperature Recorder Honeywell Class 15
TR-157 Temperature Recorder Honeywell Class 15
TR-158 Temperature Recorder Honeywell Class 15
TS-141 Preeze Valve Hi Temp. Switch Honeywell Pyrometer
TX=-147 Reference Junction Boxes Joseph Kaye Co. UTR-AS + RTD20
X-26 0il Accumulator Outlet Strainer
HV-37 Check Valve 250/80 psi Argon Circle Seal
XV-38 80 psi Argon Check Valve Circle Seal
HV-148 Air into Enclosure Check Valve
EDP- Electronic Data Processing DEXTIR

Gas Systems Parts and Supplies ORNL Stores
Instrument Field Wiring
Instrument Panels ORNL Stores

 
D-1

Appendix D

Equipment Tabulation
MSBE Salt Pump Test Stand

 

 

Electrical Equipment

 

13.8 kv System

1 Fach
350 %
300 £t
1 Lot

2400 v System

1 Each

1 Each

300 ft
4000 ft
100 ft
500 ft
1 Lot

480 v System

2 Bach
2 Each

1 Each
3 Bach
3 Each
4 Each
3 Each
3 Each

0il Circuit Breaker, 12004, 13.8 kv, 500 mva
PILC Cable, 350 MCM, 3/C, 15 kv
Galv. Conduit, L-in.

Misc. Conduit and Cgble Fittings, pull boxes, etc.

Primary Substation Transformer, Pyranol Filled,
1500 kva, 3 phase, 13,800 v/2L00 v.

Metal-Clad Switchgear, 3-phase, 2400 v, outdoor
type consisting of (1) incoming line unit, (2)
1200A motor feeder circuit breaker, (3) metering
and relaying.

Cable, 300 MM, 1/C, 5 kv.
THW Wire, No. 12, 1/c, 600 v.
Galv. Condulit, 3-in.

Galv. Conduit, l-in.

Mis. Conduit and Cable PFittings, pull boxes, etc.

Combination Magnetic Motor Starters with fuse dis-
connect Sw., 480 v, Size S.

Combination Magnetic Contactors with fuse disconnect
Sw., 480 v, size 3.

Fusible Disconnect Sw., 600 v, 200 A, 3 p.
Fusible Disconnect Sw, 600 v, 100 A, 3 p.
Fusible Disconnect Sw., 600 v, 60 A, 3 p.
Fusible Disconnect Sw., 600 v, 30 A, 3 p.
Transformers, L80-120/240 v, 50 kva, 1 phase.
Transformers, 480-120/240 v, 37 1/2 kva, 1 phase.
480 v System (continued)

3 Each
2 Bach
3 Each

3 Bach

3 Each

2 Bach
1 Each
1200 ft

150 ft
1000 ft

24,000 £t

2000 1t
700 ft

Valves

HCV-T5
HV-112
HV-113
HCOV-114
HV-35
HV-115
HV-116
HV-118
HV-119
HYV-122
HV-123
HV-124
HV-125
BV-126
HV-127

Transformers, 480-120/240 v, 25 kva, 1 phase.
Transformers, 480-120/240 v, 10 zva, 1 phase.

Variable transformer cabinets, w/6 - 7 1/2 kva,
0-280 v, Transf,; and indicating ammeters.

Same, except 2 —71/2 kva, 0-280 v and 8 - 2 kva,
0-280 v transformers.

Distribution cabinets with fuses and indicating
ammeters.

Panelboards, 100 A mains, 120/240 v, 3 wire SN.
Reversing Magnetic Contactor, 480 v, Size 3.

Heaters, tubular type, 500 watts/ft, 230 v
(misc. lengths).

Expanded metal cable tray, 18-in.-wide, w/fittings.
Cable, power supply (misc. sizes)

Wire and Cable, heater supply (misc. sizes)
Cable, control (misc.sizes)

Galv. Conduit (misc. sizes)

Salt throttle valve

HX-1 air control valve
HX-2 air control valve

Air to freeze valve (panel)
Argon to exp. from header
ASH-2 valve

Air to freeze valve (local)
Pump bowl-SST line (local)
SS to vac. pump

Monitor flow from S1 to ASH
Water to HX-3

Air from ASH k4

Air from ASH 3

Air from ASH 5

Air from ASH 6
Valves (continued)

HV-128
HV-129
HV-145
HV-1L6

Other Equipment
Salt Pump

HX-1 and HX-2
HX-3

FR

SRO

D-3

Air from ASH 7
Salt freeze wvalve
Bl vent wvalve

B2 vent valve

Test plece consisting of salt pump, lubrication sys-
tem, shield plug cooling system, and drive motor.

Salt to air heat exchangers
Air to water heat exchanger
Flow restrictor

Simulated Reactor Qutlet

Salt Storage Tank

DS-1, DS-2

B-1, B-2, B-3
B‘-h', B"'s

Blower discharge silencers

Rlowers
 

 

 

 

 

 

 

 

 

 

TO ATMOS. EQUIPMENT LEGEAD

   

 

 

“|eErTER DESCRIPTION

.B__| BlowaR
HX | HEAT EXCHANGER

 

 

 

 

® I &-68-®
@i@ @ L
¢ . ¢ &0

ASH | AIR_SAMPLING NEAD
DS Biowen DISC‘MNE SILENER

 

 

 

 

|
JFS |BLOWER NTAKE FILTER AND SIL!N(!R

 

s STACK
~R FLOW _RESTRICTOR
SRO SIMULATED REACM ourLer

 

 

 

. . rEsT szcrrow;/’

 

 

 

 

 

1
|
L
T
|
|
1
|
1

 

 

 

 

 

 

  
  

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

  
  

 

 

 
  

 

  

 

 

  

 

 

   

 

 

 

 

 

 

 

 

 

 

  
   
 

  
 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

| l
- |
L(ecc oRIVE l swzs |||
Moron | | mua )
COOLING L COOLING i =
b - S
arsony iy o LG E |
DS, wo, ACKHASE | "
06-008 : | ——x— — PIPE LEGEND
w6, M, w-o«)—@--.- I | | 326 (menes)| PINE on TBE| pATERIAL | JOINTS
TES AS m.-‘sneo — Y ovcore resr o ; Bl Mo Ve P T ugmfwrw WiweiD
o Moror | Pump
arruaaranod 1 £ - - - S (STEE B/80LTED
Some of TNESE TO &DP ] ss(stw!ZFfl -
o f--t--- - T sTEEL)
Aargon . | | el U | N N L e BPA IPOWNY LARAY EXCHANGER G | ] .
ows. s pgoos—CD: T _ , 5700 GPM !
o ———— T ‘ ‘ 180/ °F LINE NUMEBER
@%% | : ——< :}—-('DW‘. NO. @4~004 S
: - _ : ‘ : - (PIY
e [[&-e-e-eo @
& ® Wl [TTE
.- ' | nores-
3o/ : ' ' ' I=ALL INSTRUMENT SYMBOLS ARE
: PER O.R.N.L. C.F. NO57-8-/ REY. ]
:E
9
INSTRUMENT ' S ! FR
- ' ' 70 P ‘
AR . 1 X@ ‘ @ r.._‘-"‘nr"\. 1300°F 1
' ' - g @ | MEATER S
o - FREEZE - - ? —— - - - ! |
' vaLveE - }
(% —.— 70 ATMOS. - ‘ | - :--(PMP
----- - ~(PWR, . ;2?’;::1 DRAN TO ATMOS, TES £ 7, 5 AS NESDED
i-@ 5 siemcen OF ”"’ “p cowmroL
i <
o @ SPIWIB  rvosEERIC AIR
LINE : D, A /4-P-SW¢ 8 '
06-004 _
i
i
70 wic. Pume a—(ED— ~nAnN~ - <R : | .
. ‘ ,‘_P,s.r}" REFERENCE DRAWINGS : DWa. NO,
emosugrcz{’ b MIBE .S'AU" PUMP TEST STAND
—— - s |
@ @' 93/ TEST SECTION awo MAIN LOOP
I ; vem o s men | /NSTRUMENT APPLICATION DIASRAM
y ’ I L-<Pwr INSTRUMENTATION AND CONTROLS. DIVISWON
"o, | REVISIONS m| APPD ' T, = OAK RIDGE NATIONAL LABORATORY
: T o PEWAL = : UMION CARBIDE COR.
——:.....—PE' Seary ”fu ] ! e - T
=] Bl e — [ 1-/05/9-96-002-D-0
!

APPENDIX E

 

 

 
 

 

 

80 PSIG ARGON
BLDG. HEADER

70 RiCe7/
DWG. M. §§-002

70 Heve?5
Mo §G-002

88
o

®
&

NORMAL
ARGON
SUPPLY

 

 

 

vt ol . - - - ——

CONTINUED ON
D¢, 44

7O RUMP BowtL

DWG. MO. 96002

-

@

o
Dwg, Mo

TO LUBZ OIL
PACKAGE
DVG. NO. §§-002

TO SALT SRORAGE
TANK
DWG. MO §G-002

STACK
¢¢-o02

£ DRAV -y

ME

MSBE SALT PUMP TEST STAND

GAS SUPRLY SYSTEM
UATE e e wses INSTRUMENT APPLICATION . DIAGRAM

FRARTINAL
BESHLALE,
A
Wk

 

. OAK RIDGE NATIONAL LABORATORY
GFRAATES BY
| UNION CARBIDE CORP,

 

I 003-0-0

APPENDIX E

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
   
 

- ®
: 2R ; m
FROM PUMP BoOwL GAS . @ @ . F m %
DS M. O 002 c'u;x,\;rqp 85 ' Lk @ >
. o
‘ ;
&
®
' (FRY
“SHAFT SEAL ) . 32/
O/l (EZAKAGE ‘ @ @ :
ACCUMUAATOR~ . . ' ¢ '
—@ et 2 ' b d (DN =
. E \——/ ' ! y - " u \la/
FROM  O/L
CHTEN BASIN

&6

D 18 1O 1O 1O &

 

 

 

. FROM HX-3 : n
on5. w0, 04+ o0z %D |
- ASH-( | |
m'mfio':a —ED {} @;_@-——ro ATMOSPNERE

ours/pe

 

 

3 [
enciosurn - —D>—|
' | ASH-3
oursioe : -
anciosurs  r—&ED—] '
' ASH-@

 

 

 

 

CONTINUED ©N
| DM AD. 0§-008

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INSIDE @D § |-—-. ‘ e,
S e @D - ” " > TO ATMOSPNERE
' - ' j REFERENCE DRAWINGS owa. MO
' _ % wme wwomenr [, of, METE
o D I i M S.B.E, SALT PUMP_.TEST STAND
ASHN-G } o .
@ f OFF GAS SYSTEM ..
L wewe @y ] | T e | e e
NO. REVISIONS - APPD , ASH-7 , PR, = OAX RIDGE NATIONAL LABORATORY
o, S lodoe] N . j M | UNION CARBIDE COR®, ' —
[ T ] MRS, e AArTD et Im
. " — I- /10579 QG- 009-D-0
SuTom ne. woi-i Mwnesr (P ’
APPENDIX E

 

 

 

 
 

 

 

 

 

13.8 KV BUS -

) 1200 AMP
{ o.Cn,

Y 2350 mcm
15KV -4 C.

 

 

PARTS LIST

 

 

DESCRIPTION

| STOCK SIZE | MATERIAL

 

PART | DWG NO. [ REQD |

[ #80 V. DIESEL BLS

 

- ———

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1500 KVA-34 - - _ ‘ ,
13.8/2.4 KV - ‘ | 20 AMP 100 AMP
2400V, \ _ o _
3¢ BLS AS0 V.- 3¢ BUS : ‘ i
L] 1 I ] L] 1 ’ ]
*y 1200 AMP l 1 I %5 ru
) AC.B. ' . L : | | 4 3%2 RHW
500 AMP 500 AMP 90 AMP 90 AMP 90 AMP G0 AMP GO AMP 30 AMP 200 AMP. 20 AMP 100 AMP
‘ : ‘ . sizey L
. o ) T>-"e vuw
b o ( . - 2.* Yo anw | 1
. . = = : - - = oy . o= - ==
5300 MCM o Tstzes sizes SIZE 3 SI1ZED L IZE SIZE | -
5KV -3°C, . S | o ‘ _
5 i GO AMP . ‘
37 ‘/z KVA 372 KVA 37%2 wva 23 KiA' - 28 KVA 10 KW} N X Ta.s0kva 25 KVA ‘ '
480-120/240 V.| 480-120/240V.| 480-120/240¥ | 430-120/240 V.| 480-120/240 v. | 480-120j240v.| 480-120/240 V., ABO-120/240 V. \
3-*oruw . |3-*Yoruw {2-"Yo RHw |3* Auw_ 1% Ruw e THW 3% rHw | 3*Yoruw |3"% rRuw 3*) RUW 30 AMP
4: : B . ‘ D KVA - -
A _ , 120/240 V.
i : \J \J . >
3-300MCM * | 3-300 MGM ’ 3 ™2 THwW P
RHW-3"C, RHW-3"C. ‘ 1 | S gD %
. ! r..............'_j | §og8 2 |
o |34 | 3 |
] : _ ' -4’\0- —of\o- | | -oflo—- —oho- I
\ _ , ' L—ofio— r-o’}-} _ I l W b-—oho-_}
1000 WP 150 HP 150 HP (6-7V2 KvA (6-1'/2 KYA (c-7%2 kVA . (8:2, KVAE (82 KvAL Tmisc, \ v ’ LUBE OLL - (8-2KVA £ EMERAENCY
SALT PUMP AIR BLOWER  AIR BLOWER . VARIABLE VARIA VARIARLE 2.1V2 2-7Y/2 KVA POWER THERMAL CYCLING PACKAGE  2-72 K POWER
(DESianeD Fon N© B-] N® 8-2 AUTO-TRANS) AUTO- TRANS) AUTO-TRANS) VARIABL VARIABLE = CABINET HEATERS ARIABLE CABINET
MAIN I..OOP a. HEAT EXCH. PUMP & FREEZR scHEnuLE)
SALT STORAGE AUX. EQUIP, VALVE
TANK HEATERS HEATERS £ DRAIN LINE ‘
- _ | HEATERS
CIRCUIT SCHEDULE r
EMERGENCY POWER CABINEY
1. INSTRUMENY CONTROL ‘ . "
2. LIGHTS INSIDE SHIELDING | : REFERENCE DRAWINGS | numeer
3, SHIELD PLUG COOLING : I
4, LOOP EXHAUST BLOWER (33) . o Oax e Namowar Lasemaveny .
% AIR SAMPLING HEAD BLOWERS (B4 ¢ RS) ' OPERATED BY
Union CanBinE CorPORATION
OAK RIDGE, TENNESSEE
MSRE SALT PUMP TEST STAMD Bi9%
o . GENERAL SPECIFICATIONS |~ Totenses ihsss.
THAT THE UK om OICLOBURE. OF ANY inromsemon "" “:‘ s | untess omvemwise specimen: | ™™ " [Mvo. REVISIONS oAYE [APPD | APPD | ELECTRICAL ScHeMaTic DiAGRAM
PRNATE RIGHTS OF OTHENR, NO UKBIITY 1o ALSUMED WITH RERPECT To ;_Gm:msw s * e in SUBMITTED | DATE | APFROVED | DATE
THE USE OF, OR FOR DAMAGER REBULTING FROM THE USE OF, ANY MATERIAL MAY BE CHOSIN | DECMALS & | WA | WM/e | ! __7
INFORMATION, APPARATUS, METHOD O PROCERS DISCLOSED M THESE BY FABRICATOR. DESIGNED DATE [ APPROVED 1 DATE | DATE SURMITIED ACCEPTED APPROVED
DRAWINGS. THE DRAWINGS ARE BEING MADE AVANASLE FOR INFORMATION ANGLES & i ! .
TO BIODER AND ARE NOT TO BE USED FON OTHER PURPCSES, Ano ame | 3. MACHINED SURFACE - FINISH — ] !
TO BE RETURNED UPRON REQUEST OF THE SMALL NOT EXCEED: CHECKED DATE APPROVED | DATE | DATL 1
(ASA B46.1-1962) SCALE: 1 t | I l Dl l
APPENDIX F

 

 

 

 

 
Appendix G

MSBE Salt Pump Test Stand

 

Preliminary Design Calculations
G-2

G-I Salt Storage Tank

 

The preliminary tank design, shown in Fig. 7, is predicated on the
use of Hastelloy N material on hand and the use of forming dies on hand
at Paducah for the torispherical heads. At the design temperature of
1200°F the allowable stress is 6000 psi. The required tank volume of
75 cu £t is based on the volume of approximately TO ft of 8 in. (sched
40) pipe (24 £t3), plus LO ft3 estimated maximum pump volume, and 11 £i3
for a gas space and a heel in the tank.

Allowable pressure due to circumferential stresses in cylindrical
shell 1/2 in. thick

p - _ SET _ (6000)(1)(.5)
T R + 0.6t (19.5) + (.6)(.5)

 

= 151 psi Para UG-2T*

Allowable pressure in torispherical head 5/8 in. thick

SET (6000)(1)( .625)

P=o58smr 0.5 -

T TES)(36) + (D) C R rare HeE

Volume of tank (2 x 2.78) + (% X 392 x 105.875/1728) = 78.75 cu £t

Tank Support

Total weight of tank and 65 cu ft of primary salt

= 3000 + 65 x 205 = 16,325 1b

Assume tank is supported by 4 support rods attached to 2 straps
passing under the tank and an allowable stress of 3500 psi:

Area of one strap = 16,325/(4 x 3500} = 1.17 in. Use 1/2 x 2 1/2

Support Rod

10,000 psi
.408 in.2 Use rod diam = 3/4 in.

Assume allowable stress
A =16,325/(% x 10,000)

 

*¥ASME Boiler and Pressure Vessel Code, Pressure Vessels, Section VIII,
Division 1.
G-3
G-II Heat Exchanger

An existing computer program (SALTEX) for salt-to-air heat ex-
changers was used to study the preliminary heat exchanger design for

SPTS. The design is subject to the following conditions or limitations:

Salt flow rate 8000 gpm

Pump power to fluid 1200 hp

Mean salt temperature 1050°F and 1300°F
Salt pipe size 8 in. (sched L40)
Maximum air velocity 900 fps

Air inlet temperature 150°F

Air inlet pressure L psig

Air flow rate 10,000 scfm (total)
Maximum air side AP 3.1 psi

The change in salt temperature around the loop with this flow rate
and input power is about O0.7°F, which is essentially isothermal during
normal operation. The computer output is shown on the two following

pages. The more important ocutput is as follows:

Heat exchanger length 16 ft
Annular gap 938 in.
Air side AP 3.0 psi

Air side AT 280°F
 

G-k

SALTEX 16217 YED. 11=-19-69

FER MEAN SALT TEMPEKATURE GF 1050 F , '
TRY GeDe PUMF HEADCFT) LENGTHLFT) . AlF VELLFT/SECIDELTA FLFSI)

REGUIRED WALL THICKNESS LESS THAN STANDAFRDe. FESET. ,
1 10.2 A58 . 15606 BE7.368 - 4422129 .
FEQUIRED WALL THICKNESS LESS THAN STANDAFDe FESETe.
£ 10.2 +4Ov5E3- T 1444526 '810.446 = = .3.87343
3 1C.3 1465523 15.2487 758034 336532
4

16.4 +46~ 555 16.0511 711.568 ' 294859

SALT FLgt= 800C GPMs OF 1+35209E+0C7 LE/ZHE -
EAEF—FEMP—HEAPs—-46~583—FT
FoHEF»—FEHIB=—068~ » PUMF= 1200, HF» Ok 3.054Q0E+06 - BETUWHE
SALT FIPE ID= 7.981 INes 8D= B+625 INe '
SALT FLOY AREA= +347411 SCFT
WALL THICKNESS, -Miie—ei-49956 >NSMINAL= <322 INCH
ANNULUE €D= 10«4 INe ' '
ShEFe S F—FFES SR ES—AFE~~

BHEFEFINGe— O v B S D F SO H A G Rt vy P ES N85 PSIG
AIF FLCV AREA= «184184 SCFT ’

SALT PHYSICAL PREPERTIES AT T= 1650 F -

CP= 324 BTU/LE-F» K= .75 ETU/LEB-FT-F

MU= 34.18 LB/FT-Hk> DENSITY= 210.7 LE/ZCU.FT

VELe.= 51.3091 FT/SEC» TEMFs CHANGE= +.69714 F

MASE VEL= 38%919CE+07 LE/ZHE=SC«FTs FF NE= 147658 » FE NCe= 757295

£IF PHYSICAL PROFERTIES AT £290.121 F

CP= «242211 BTU/LE-F» K= 2.01456E-02 BTU/LB-FT-F

MU= 057224 LB/FT~HFs TEMP CHANGE= 280241 F

MASS FLGW= 44992.9 LE/HF TOTAL, Gk £2496.4 PER ANNULUS

VBL.FLGE= 10000 SCFM TCTAL» BFK 5C0C SCFM PEFR ANNULUS AT 70 . F

G= 122141+« LE/HR=-SC.FT ' -
INLET=--DENSITY= 8.28826E-C2 LB/CU-FT» VEL= 409.352 FT/SEC AT 150 F
CUTLET-DENSITY= 4.76808E-02  LE/CUFTsVEL= 711.568 FT/SEC AT 430.241 F

MEAN=<DENSITY= 6+52B817E-0Z LEB/CU-FTs» VEL= 519-719 FT/SEC
PR NG= .688003 » RE NC= 315719« » FFICTIGON FACTCR= 3.57337E-03

HEAT TRANSFEF DATA

INSIDE WALL CUTSIDE OVEFALL
CCEFFICIENT © 293834 - 676658 560864
RESISTANCE 3+67790E-02 £e68333E-03 1.47785E-02 1.78296E-02
TEMFeAT INLET  1021.43 963+71 895.986
TEMP. AT GUT 103722 990579 . 943.943

WITH WALL K= 10- EBTU/HE-FT=-F
LEG MEAN DELTA T= 751.187 F

PRESSURE LGSS CALCULATIENS FOk ALK

DELTA FP= B1.6532 INJHZ2EL = 294859 FSI :
LENGTH, TETAL= 32.1022 FEET», €F PER ANNULUS= 16.0511 FEET
STBF :

AN 12 SEC.
 

 

 

G-5

FOR MEAN SALT TEMPERATURE GF 13060 F

TRY GeDe FUMF HEADILFT) LENGTHIFT] . AIR VELLFT/SECIDELTA PLFSI]
FECUIRED WALL THICKNESS LESS THAN STANDARD. FESET.

1 9.5 4565 . 6499208 1532.91 _ 11.7641
KECUIKED ”ALL THICKNESS LESS TH&4N STANDAFD. RESET.

2 9.5 v DGt 670751 151514 112267

3 9.75 e SEE 8.12398 116241 624134

4 1C o Shbe Sl . 9.56996 , 938.297 - 392979

5 10.25 -+44756& 110453 T3 428 268244

°9LT FLOW= 8000 GFMs BE 1. 31437E+G7  LE/HK
LAETRUMR READ= 144568 FT :

FLUE R U B=—0-66+ » PUMF= 1200, HPs OR 3+05400E+06 BTU/HE
SALT PIPE ID= 7.981 INs2» GD= 8625 IN :

SALT FLGY AREL= 347411 SCFT

I GRS S NS e 42056 s NOMINAL= «322 INCH

ANNULUS €D= 10.25 IN.

 

BIR FLOY AFEA= «16729 SCeFT

SALT FHYSICAL FROFERTIES AT T= 1300 F
CP= «324 BTU/LE-Fs K= 75 ETU/LE-FT-F

MU= 16«4 LB/FT-HE,» DENSITY= 204.9 LE/CUFT

VELe= 51.3091 FT/SECs TEMFe CHANGE= +716873 F

' MASS VEL= 3.78476E+07 LE/HE-SC.FTs FF NG@= 7.0848 » RE N@e=

153487E+06

AIFR PHYSICAL PFOGFERTIES AT £290.121 F

CP= 242211 BTU/LE-F»s K= 2.01456E~-02 ETU/LE-FT-F

MU= «057224 LE/FT-HRs TEMF CHANGE= 280C.241 F

MASS FLOW= 44992.9 LB/HFE TOTAL., OF £2496.4 FER ANNULUS

VEL.FLEGW= 10000 SCFM T@TALs GFE 5000 SCFM PEFE ANNULUS AT 70 F

G= 134476+ LE/HR-SC.FT -

INLET=-=-DENSITY= 8.28826E-02 LE/ZCU«FT» VEL= 45C.691 FT/SEC AT 150 F
LUTLEI'DFNQITYw 4-766083'06 LE/CU.FTsVEL= 783.428 FT/SEC AT 430.241 F

MEAN=--DENSITY= 6. 52817E 02 LE/CU.FT» VEL= 572.204 FT/SEC
FFE NG= +688003 » KE NG= 318228+ » FRICTIEN FACTGFE= 3.56787E-03

HEAT TRANSFEFE DATA :
INSIDE ‘WALL - B GUTSIDE CVEEALL

CCEFFICIENT  4148.28 . 7443814 61402
RESISTANCE = 2¢60516E-04 - 2.68333E-03  1.34442E-02  1.63881E-0
 TEMF.AT INLET  1281.72 . 1187.57 - 1093.42
CTEMPe AT GUT . 1286+17 . 121497 . 114376

WITH WALL K= 10 ETU/HE-FT-F
LGG MEAN DELTA T= 100337 F -

PRESSUKE LOSS CALCULATI@NS FEE ALR

~ DELTA F= 74.2829 IN.H20G =. 2.68244 PSI .
. LENGTHs TOTAL= 22.0907 FEET: GF PER ANNULUS= 11.0453 FEET
G-6

G-III Temperature Transients

 

To obtain an approximation of the maximum heating thermal transient
it was assumed that the pump was operating at llO% of design speed, the
throttling valve was wide open, the air blowers to the heat exchangers
were shut down, all electric heaters on the loop were turned on, and there
are no heat losses. The BHP of the pump would be gbout 1200 and based on
3 kw/sq £t of pipe surface area the total electric heat would be about
475 kw. The weight of INOR-8 in the loop (not including the drain tank)
is estimated to be 5000 lb.

g = (1200 hp X L4o.lt Btu/hp-min) + (475 kw X 57 Btu/kw-min) = 77,900 Btu/min.

900 17,900

AT = 1) : (WC_) - Q2051 3ZZ3+(5000)( T38) - GoTheg v 650 /™
p’/salt p’ INCR-8 ’ : ’

where Q = volume of salt in loop and pump in cubic feet.

The resulting curve of temperature rise per minute versus the amount
of salt in the loop is shown in Fig. 15.

For the cooling thermal transient it was assumed that the pump is
operating at 10% of design speed, the alr cooling system is set for a
heat removal of 1200 hp, all electric heaters on the loop are turned
off, and there are no heat losses. At 10% speed the BHP of the pump will
be about 1/1000 of design horsepower, or about one hp which is negligible.

q = 1200 hp X 42.4 Btu/hp-min = 50,880 Btu/min

B 50,880 _ 50,880
— Q(205)(.32L)+(5000)(.138) ~ 66.42Q + 690

 

 

AT = ( OF/II

Qpcé)salt * (WCP)INOR-B

The resultant curve of temperature drop per minute versus the amount

of salt in the loop is shown in Fig. 15.
G-7

G-IV Pump Characteristics

 

Since the MSBE salt pumps are yet to be designed by the United States
pump industry, it was necessary to estimate the characteristics of the
pumps in order to establish the design criteria for the components of the
SPTS. The index of a pump's characteristics is given by its specific

speed which is defined as:

n

 

[62]
an
W
T~
>

If a speed of 9C0 rpm is selected for the primary pump and 1200 rpm
is gselected for the secondary punmp their respective specific speeds are
1584 and 1488. The shape of the head-flow curve is a function of the
specific speed.* The resultant head-flow curves for the primary and

secondary salt pumps are shown in Fig. 3.

 

*Stepanoff, Centrifugal and Axial Flow Pumps, p. 162, 2nd ed.,
New York, John Wiley and Sons, Inc.
G-8

G-V Heat Removal from 1500 hp Motor

 

Two proposed methods were considered in this investigation.

1. TUse of Plant Water

 

This system would consist of a water supply line with shut-off and
throttling valves connected to a cooling coil and a drain line with open-
end combination vacuum breaker, sight-flow fitting that empties into the
building water drain. For the 1500 hp motor at 95% efficiency, waste
heat = 75 hp, or 3200 Btu/min. Assuming AT of 10°F and plant water
maximum temperature of about 60°F, a flow of about L0 gpm is required.

The present cost of process water is 5 cents per thousand gallons.
LO gpm = ~60,000 gpd = $3.00 per day
2. Use of Air-Cooled HX with Pumped Circulation
105
2

=% 973 £t (say 1000 ft3)

Then the cost is

HX = 1000 X 7.20/S.F = $7,200

(From UCC Cost Man. I-200-217.0.1)

Cir. Pump and Motor 50 gpm at 50 ft hd = 340

Installation (33 1/3% equip.) = 2.513

Indirect {50%) = 5,027
$15,080%

*¥Does neot include electrical.

Operating costs for an alr-coocled HX and circulating pump would re-
quire driving power for two motors of approximately 2 hp each plus main-
tenance associated with keeping this equipment serviced.

The air-cooled heat exchanger would have to be located outside the

building and this would increase the cost of the installation.
G=9

Operating costs for use of plant water would be essentially nothing
except for the cost of water. With the cost of water at .05/1000 g and
a 5 year test duration, it appears that the simplicity and low cost makes

use of the plant water system the most desirable.
 

 

G-10
Aggendix G-VI

- Flow Measurement Instrumentation
Location of the Flow Sensors

The flow sensors are located in the pump discharge line downstream
of the throttle valve and preceded by a straight run of fiipe of about
30 pipe diasmeters. It is anticipated'that turbulence from the'throttle
valve will be sbout equivalent to a gate valve. To a limited extent it
may act as a perforated-plate-type flow turbulence remover. Thus it is
expected that satisfactory accuracy will be achieved.

Description of Flow Sensor

The flow sensor itself will be a truncated nozzle venturi tube. Con-
sideration must be‘givefi to the configuration of the flow sensor so that
it can be installed in an all-welded piping system and so that pressure
taps can be located properly. At present, it seems likely that a truncated
venturi might solve the problems of machining, welding, and firessure taps.
A preliminary sketch of the truncated nozzle venturi tube is shown in -
Fig. 14, It is important that the upstream pressure be larger than the
differential pressure. This avoids a vacuum in the throat pressure tap.

Flow Calculation

 

An engineering study was made of flow calculations. For purposeé .
of comparison, three pipe sizes (8-, 10-, and 12-in.), six p = d/D ratios
(0.50, 0.56, 0.60, 0.65, 0.70, and 0.75), and three flow rates (3000,
5700, and 8000 gpm) were studied. The salt used in the calculations
weighs 204.9 1b per cu ft at 1300°F.

For these preliminary calculations, the following formula was used.
(See Principles and Practice of Flow Meter Engineering, 9th ed, by
L. K. Spark.) Several correction factors were omitted for the sake of
simplicity. |

n, = (g, G/, 5)2

hw = differential pressure in inches of water
G-11

Qm = flow rate in gpm

vy = a constant, 5.667, to be used when Q, s in gpm

= 1inside dlameter of pipe in inches
G, = specific gravity of flowing salt

G, = specific gravity of
water at 60°F = 1.0

S = an operating figure from which d/D may be obtained by
reference to a table or curve for the particular kind of

flow sensor under study.

The sbove equation was modified as follows in order to convert "inches
of water" to "pounds per square inch" and to group certain terms together

for easier calculations:

Gy w2 - 2
= [T (2] (] (o)

FProm the resulting data, graphs of differential pressure vs. pipe
size for the various d/D ratios were plotted. The permanent pressure
loss curves were obtained from Fig. 24, p. 48, "Fluid Meters — Their
Theory and Application," ASME 5th ed., 1959. From the graphs, one can
draw this conclusion:

For 8-in. pipe, the d/D ratio must be high to keep differential
pressures low enough at maximum flow to be within the ranges of high-
temperature pressure transmitters. The highest d/D ratio for which
engineering data is available is about 0.75. For the higher d/D ratios,
longer lengths of straight pipe upstream of the flow sensor are recom-

mended. The d/D ratios between 0.2 and 0.6 are preferable.
Measuring the Differential Pressure

We plan to measure the flow sensor's differential pressure with two
pressure transmitters rather than with one differential pressure trans-
mitter. The reason for this is that no high temperature (1300°F) dif-
ferential pressure transmitter with sufficiently high static pressure

rating is known to be on the market. Perhaps one can be developed later
G-12

by one of the instrument manufacturers. The procurement of the simpler
high temperature pressure transmitters may be somewhat of a problem too,
because prototype transmitters for the SPTS facility and the MSBE will
be used. These transmitters will have seals that have multi-ply dia-

phragms. Such seals are not standard items of commerce.
ORNL DWG. 69-13461

 

€1-D
G-14

69-13462

ORNL DWG.

 
ORNL DWG.

 

69-13463

GT-9
G-16

G-VII MSBE Secondary Pump Operating in Primary Salt with
a Reduced Diameter Impeller

 

For a given pump the following relationships hold:
H varies as N® and D?
Q varies as N and D
BHP wvaries as N°® and D4

If we assume the primary pump speed is 900 rpm and the secondary
pump speed is 1200 rpm, then NC/Nf = 1.333. By a trial and error pro-
cess, Dc/Df = .84 comes close to meeting our requirements ©f subjecting
the secondary pump rotary element to its design power and pressure rise

at its design speed.

From the above relationships we can arrive at the following:

H, = (NC/Nf)2 (Dc/Df)a H, = (1.333)2 (.84)2 H = 1.25k H,
Q, = (W /N.) (p/D.)? Q. = (1.333) (.84)2 = .9k Q.
BHP = (Nc/Nf)S (DC/Df)4 BHP,. = (1.333)3(.84)4 BHP, = 1.180 BHP..

These relationships were used for extrapolating the primary pump
head, flow, and brake horsepower to the curves for the reduced diameter

impeller shown in Fig. O.
G=-1T7

G-VIII Summary of Pressure Profile Calculations

Pressure distributions around the loop were determined for three

conditions:

1. flow, Q, = 7850 gpm and pump head, H, = 168 ft.,
2. flow, Q, = 5700 gpm and pump head, H, = 150 ft., and
3. flow, Q, = 2850 gpm and pump head, H, = 165.4 ft.

The fluid properties used were 1050°F

density, o, 210.7 1b/ft3 and

34.2 1b/ft hr.

viscosity, .,
The loop was separated into the following in-line components:

4 £t of conduit (8 in. nominal) at the pump discharge,
the flow control valve,

22 1/2 ft of conduit,

the flow nozzle,

3 1/2 ft of conduit,

a flow restrictor made up of a thin plate perforated with holes

V1w N

so that the ratio of plate area to conduit area, Ag/Ai, =~ 0.578,
and

7. 50 £t of conduit to the pump suction (including 20 ft of return
conduit, 20 ft equivalent estimated for the return bend, and

10 ft equivalent estimated for the bend into the pump).

The above components were located relative to each other so that
with very low (~0 abs) pressure at the pump suction, the lowest pressure
within the flow nozzle is limited to about 20 psia and there is sufficient
"entrance" length of conduit for good nozzle performance.

The friction loss in any component, i, was calculated from

= 2
&P, = C.@° ,

where the '"loss coefficient," Ci’ is different for each component. The

various values for C were determined as shown below:
G-18

1. Conduit

The Blasius equation provides a convenient means for calculating
friction losses in conduits,

_ fL pve _ [_foL Q2
D 2¢g ngA?J 7

where C is clearly given by 2;;23 . Since f 1s a function of Reynolds

modulus, Re’ then C will not be strictly a constant. However, over the
range of flows considered T changes by only 13% (at Q = 7840 gpm,
= 7.4 x 105, and f = .012; at Q = 2850, R, =2.7X105, gnd f = 0.0136).

Therefore, for the conduit,

 

(.012)(210.7)

C_ _fp g g
L~ 2R (eb.h) (L2 l)LE (L25E ]2 (60)2(7.481)2 (1uk)

2. Flow Control Valve

 

The friction characteristics of the valve were not determined. It
must withstand the difference between the pump head produced and the head
losses due to the rest of the loop.

3. Flow Nozzle

The maximum pressure difference in the flow nozzle at 7900 gpm is
128.5 psi of which approximately 45 psi is permanently lost (see
Appendix G-6, Selection of Flow Nozzle).

The loss-coefficient is therefore given by

Q

= AP/Q2 = 45/(7900)% = .72l x 10~ psi/(gpm)?

A coefficient was also determined for the meximum pressure change,

!
l

o 128.5/(7900)2 = 2.065 X 107 psi/(gpm)3
G-19

4., Flow Restrictor

 

The flow restrictor was considered as a combinagtion of a sudden
contraction followed by a sudden expansion with an ares ratio of 0.578
(A, = 0.2 ft?).

Sudden Contraction

AP =K PV, 2/2g = X _PQ?/2gp 2

where K, = 0.4[1.25 — A, /4]
~ 2 — 2
Therefore Cc H.AE/Q KCP/EgA2

Sudden Expansion

 

AP =K _PV,2/2g = K PQP/2gA2

where K

e =1 A/M T

o~ 2 = 2
Therefore Ce __AP/Q KeP/QgA2 , and

the combined coefficient, C becomes

tot’

_ 210.7 rL4L1.25-.5T8]
~ TErHY(3600) (7 WP ) | o

— 8 -
et Oé528) ] = 1.255 x 10" psi/(gpm)?

With the loss coefficients as determined above, the pressure drop

scross each component is shown in the following table.
G-20

Component Pressure Losses

 

Loss-Coefficient AP (psi) for Q = (gpm)

 

 

 

Loop Component (psi/gpmz) . — 2550
L £t of conduit 0.06645 x 10~° 4.1 2.2 0.5
Valve¥ - -- - -
22 1/2 ft of conduit 0.3740 X 107 23.0 12.2 3.0
Nozzle** (total) 2.065 X 107 126.9 67.1 16.8
Nozzle (lost) 0.721 X 107 L L 23.5 5.9
3 1/2 £t of conduit 0.0582 X 107 3.6 1.9 0.5
Flow restrictor 1.255 X 107 77.1 40.8 10.2
50 ft of conduit 0.8475 x 107 52.1 27.5 6.9
Total 204 .3 108.1 27.0
Pump AP 245 .9 211.0 24h1.9
Valve AP 41.6 102.9 214.9

 

¥The valve AP is the difference between the pump AP and the
total AP.

¥¥Not included in the total losses.

Pressure distributions were determined for the same conditions ex-
cept the salt temperature was increased to 1300°F. There was no signifi-
cant difference in the resulting pressure profile.

The resulting pressure profiles for the three flow rates are shown
in Fig. 5. Any profile may be moved upward by increasing the cover gas
pressure up to 50 psig, as shown for the 3000 gpm profile. The cover
gas pressure may be increased to prevent pump cavitation, to avoid sub-
atmospheric pressures at the low pressure PMD of the venturi tube, or

for other test purposes.
G-21

G-TX Stress Analyses

 

The Salt Pump Test Stand has been analyzed using the MEL-ZIP,
"Piping Flexibility Analysis Program,"” to determine whether stresses
produced by the thermal expansion of the system are within the limits
set by "USAS B3l.1l - The USA Standard Code for Pressure Piping,” using
the allowable stress values for the Ni-Mo-Cr alloy given in Code Case
1315-3 for Section VIII of the ASME Boiler and Pressure Vessel Code -
Division 1.

Cases were analyzed in which the entire loop was at 1200°F and
where the top leg was at 1300°F and the bottom leg was at 1200°F. The
stresses produced by the restraint of the thermal expansion through
the supports were found to be below the allowable stresses for both
cases.

An analysis is currently underway to determine whether the stresses
due to pressure and weight are within the limits specified by the Piping

Code.
. Anderson
. Anderson

\O 00— Ot = o

. Case (Y-12)

.- Cromer (Y-lE)

. Eatherly
. Ebert (Y-12)

Grimes - G. M.
Grindell
Haubenreich

Jasny (Y-12)

Korsmeyer

?1;1$:§3?1F*C)*Ufntntfl!fl'fi PO nHODES QUM OO EH>POEHZNO Y =

Gl?:riylgigib-iiw ?flfitfiizffltfllg'fiig HEwWUPrgsHS 2 20

. MacPherson

Internal Distribution

 

ORNL-TM-2780
L6. R. E. MacPherson
L7. J. D. McLendon (Y-12)
L. H. E. McCoy
L9. H. C. McCurdy
50. C. K. McGlothlan
51-52. R. A. McHNees
53. J. R. McWherter
54. H. J. Metz
55. A. J. Miller
56. E. C. Miller
57. R. L. Moore
58. J. F. Morehead
59. K. L. Nicholson
60. F. S. Patton (Y-12)
61. A. M. Perry
62-63. M. W. Rosenthal
64. J. P. Sanders
65. Dunlap Scott
66. M. J. Skinner
67. P. G. Smith
68. I. Spiewak
69. R. D. Stulting
T70. R. E. Thoma
1. D. B. Trauger
72. P. R. Vanstrum (Y-12)
Watson T73. R. S. Ware (Y-12)
Th. A. M. Weinberg
™. J. R. Weir
6. M. E. Whatley
7. J. C. White - A. S. Meyer
78. G. D. Whitman
79-88. L. V. Wilson
89. H. C. Young
90-91. Central Research Library (CRL)
02-93. Y-12 Document Reference Section
(DRS)
OL-96. Laboratory Records Department
(LRD)

Laboratory Records Department -
Record Copy (LRD-RC)
98-112.
113.
11k,
115.
116.

117-125.
126,
127.

128-129.
130.

External Distribution

 

Division of Technical Information Extension (DTIE)
Laboratory and University Division, ORO

. Laughon, RDT-0SR, ORNL

¥. Cope, RDT-OSR, ORNL

W. McIntosh, USAEC, Washington, D.C.

M. Roth, AEC, ORO

Shaw, USAEC, Washington, D.C.

A. Rosen, USAEC, Washington, D.C.

Elias, USAEC, Washington, D.C.

. M. Kavanagh, USAEC, Washington, D.C.

NDUERI@DAUYON