-
Notifications
You must be signed in to change notification settings - Fork 5
/
CAESSimulationV3Base.m
450 lines (397 loc) · 19.9 KB
/
CAESSimulationV3Base.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
%============================================================================
% Function: Thermodynamic Simulation of Adiabatic Compressed Air Energy Storage
% Author: Ricky (Rui Li) at Tsinghua University
% E-mail: eeairicky@gmail.com
% Version: 2.1 2019/03/17
%%% =============History===================================================
% 2018/08/20 Energy Balance of Each Component
% 2019/01/11 Initial Part-load Curve
% 2019/02/01 Define the Data Format with TICC-500
% 2019/02/11 Update Off-desgin Curve
% 2019/02/15 Update Air Three ASU Module
% 2019/02/15 Unify the variable with structure data format
% 2019/02/16 Update the CP & SP operation in charging process
% 2019/02/18 Provide visualization interface (V1.0)
% 2019/02/20 Update the CP & SP operation in discharging process
% 2019/03/05 Provide the exergy model interface with the
% - "HOT: Thermodynamic Tools for Matlab"
% - http://hot-tdb.sourceforge.net/
% 2019/03/17 Reduce the time step to save memory
%%% ===========To=do=List=================================================
% 通过储热罐质量平衡检查充放气终止条件
% 系统参数自检功能(储气室压力运行范围与压缩机压缩比以及膨胀机膨胀比之间的匹配程度)
% T_w 求解接口函数 (在m文件中Run已编好的Simulink模块)
% 储热热功率的计算 (考虑利用进入储热罐的HTF温度与储热罐当前HTF温度计算)
%===========================================================================
clc
close all
clear all
%% Plot Option
DrawOption.lang = 'ch'; % 'en'
DrawOption.Charging = 1;
DrawOption.Discharging = 1;
%% load on-design dataset
eval('StandardCAESData');
%% Component off-design curve
% Compressor off-design curve
Beta_Comp = [1.995 -1.895 0.8967];
Scale.Beta_Comp = @(m_ratio) Beta_Comp(1)*m_ratio.^2 + Beta_Comp(2)*m_ratio + Beta_Comp(3);
Eta_Comp = [3.45 -8.979 7.842 -1.309];
Scale.Eta_Comp = @(m_ratio) Eta_Comp(1)*m_ratio.^3 + Eta_Comp(2)*m_ratio.^2 + Eta_Comp(3)*m_ratio + Eta_Comp(4);
% Turbine off-design curve
Beta_Turb = [1.139 -0.32 0.1757];
Scale.Beta_Turb = @(m_ratio) Beta_Turb(1)*m_ratio.^2 + Beta_Turb(2)*m_ratio + Beta_Turb(3);
Eta_Turb = [4.111 -10.44 8.859 -1.534];
Scale.Eta_Turb = @(m_ratio) Eta_Turb(1)*m_ratio.^3 + Eta_Turb(2)*m_ratio.^2 + Eta_Turb(3)*m_ratio + Eta_Turb(4);
% Heat exchanger off-design curve
U_Both = [1.059 -0.05768];
Scale.U_HE = @(m_ratio) U_Both(1)*m_ratio + U_Both(2);
% Get rated sigma of heat exchanger
Sigma_Rated = @(T1_in_air, T1_out_air, T2_in_water, CpQm1_air, CpQm_min) CpQm1_air*(T1_in_air-T1_out_air)/(CpQm_min*(T1_in_air-T2_in_water));
%% Operation Model Selection
OperationMode = 2;
switch OperationMode
case 1 % CP-CP
TV_Mode.Comp = 'CP';
TV_Mode.Turb = 'CP';
case 2 % SP-CP
TV_Mode.Comp = 'SP';
TV_Mode.Turb = 'CP';
case 3 % CP-SP
TV_Mode.Comp = 'CP';
TV_Mode.Turb = 'SP';
case 4 % SP-SP
TV_Mode.Comp = 'SP';
TV_Mode.Turb = 'SP';
end
MassFlowMode = 'Fixed'; % Simulation setting
% MassFlowMode = 'Part-load';
% MassFlowMode = 'Random';
%% Mathematic Model
% on-desgin [0]/ off-desgin [1]
OFFDesign.Comp = 0;
OFFDesign.Turb = 0;
OFFDesign.HEC = 0;
OFFDesign.HEH = 0;
PressureDrop.HXC = 0;
PressureDrop.HXH = 0;
ASU_Model = 'VA'; % G/VT/VA
%% Thermodynamic Constant
From_C_to_K = 273.15;
From_Nm_to_kg = 1.2936; % this is specific to water?
From_Pa_to_KPa = 1e-3;
T_env = 293; % [K] Ambient temp
T_cs = 293; % [K] Temp of cold storage
T0 = 293; % used for exergy calculation
P_atm = 1.013*10^5; % [Pa] Atmospheric pressure
P_atm = P_atm*1e-3; % [KPa]
Ra = 286.7; % Gas constant [J/(Kg*K)]
Rg = Ra; % check
Cva = Ra*(5/2); % Cv of the air
Cpa = Cva + Ra;
k = Cpa/Cva; % Cp/Ca for air as an ideal diatomic gas
lambda=(k-1)/k;
Cp.HTF = 4181.3; % [J/(kg*K)]
Cp.Air = Cpa; % [J/(kg*K)]
HTF.Name = 'H2O';
%% Rated Thermodynamic Parameters
eval('CAESReadRatedPara');
% Air Tank Model
P_as_max.SP = 10.0; % MPa
P_as_max.CP = 10.0; % MPa
P_as_min.SP = 4.0; % MPa
P_as_min.CP = 4.0; % MPa
P_as_max.SP = P_as_max.SP*1e3; % KPa
P_as_max.CP = P_as_max.CP*1e3;
P_as_min.SP = P_as_min.SP*1e3;
P_as_min.CP = P_as_min.CP*1e3;
V_as = 100; % [m^3] (TICC-500 Size) can adjust
Pa0 = P_as_min.SP; % [KPa] Initial pressure of the air
Ta0 = T_env; %[K]
M_Init = 10^3*Pa0*V_as/(Ra*Ta0); % [kg]
%% Simulation of one-cycle with rated mass flow rates
%
tstep = 60; % [60s /step]
t_char = 8.0*3600/tstep; % [s] % this value should be larger to allocate space
t_disc = 2.0*3600/tstep; % [s] % this value should be larger to allocate space
TT_Char = 1:t_char;
TT_Disc = 1:t_disc;
eval('CAESThermoVariableDef');
eval('CAESThermoVariableExe'); % exergy definition
eval('CAESPerformanceCurveDef');
if strcmp(MassFlowMode, 'Fixed')
m_air.comp = m_c_rated*ones(1,length(TT_Char)); % [kg/s]
m_air.turb = m_e_rated*ones(1,length(TT_Disc)); % [kg/s]
elseif strcmp(MassFlowMode, 'Part-load') % 'Part-load'
base.comp = [0.8*ones(1,length(TT_Char)/3) 0.5*ones(1,length(TT_Char)/3) 0.75*ones(1,length(TT_Char)/3)];
base.turb = [0.8*ones(1,length(TT_Disc)/3) 0.5*ones(1,length(TT_Disc)/3) 0.75*ones(1,length(TT_Disc)/3)];
m_air.comp = m_c_rated*base.comp;
m_air.turb = m_e_rated*base.turb;
elseif strcmp(MassFlowMode, 'Random')
base.comp = rand(1,length(TT_Char));
base.turb = rand(1,length(TT_Disc));
m_air.comp = m_c_rated*base.comp;
m_air.turb = m_e_rated*base.turb;
end
tt_char = 0; % cycle index
tt_disc = 0;
Stop_Char = 0; % Flag
Stop_Disc = 0;
%% Charging
T_a_in.c1 = (Compressor(1,6) + From_C_to_K)*ones(1,length(TT_Char)); % [K]
p_a_in.c1 = P_atm*ones(1,length(TT_Char)); % [KPa]
if strcmp(TV_Mode.Comp, 'CP') % CP mode
while ~Stop_Char
tt_char = tt_char + 1;
% Compressor-train
eval('CAESCompressorTrainCP');
%% TV-Comp
if p_a_out.HXC5(tt_char) < P_as_max.CP
warning('Air pressure is less than the default inlet pressure of TV under the CP mode!!!');
else
T_as_in(tt_char) = T_a_out.HXC5(tt_char);
P_as_in(tt_char) = P_as_max.CP; % adjust
end
%% Air-Storage
eval('ChargingASUCP');
%% Stop Charging Condition
if P_as.Char(tt_char) >= P_as_max.CP % stop charging process
Stop_Char = 1;
T_Char_End = tt_char;
disp(['Charging ended at ' num2str(T_Char_End*tstep/3600) ' h!'])
end
%% TES-storage
eval('ChargingTESCP');
end
end
if strcmp(TV_Mode.Comp, 'SP') % Compressor SP
while ~Stop_Char
tt_char = tt_char + 1;
eval('CAESCompressorTrainSP');
if tt_char == 1
P_as_in_SP_Req(tt_char) = Pa0;
T_as_in(tt_char) = Ta0;
P_as_in(tt_char) = Pa0;
if P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated*beta.c3_rated*beta.c4_rated)
CompOn.c5(tt_char) = 1;
CompOn.c4(tt_char) = 1;
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated*beta.c3_rated)
CompOn.c4(tt_char) = 1;
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated)
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated)
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
else
CompOn.c1(tt_char) = 1;
end
else
P_as_in_SP_Req(tt_char) = P_as.Char(tt_char-1);
% determine the on/off state of each compressor
if P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated*beta.c3_rated*beta.c4_rated)
T_as_in(tt_char) = T_a_out.HXC5(tt_char);
P_as_in(tt_char) = p_a_out.HXC5(tt_char);
CompOn.c5(tt_char) = 1;
CompOn.c4(tt_char) = 1;
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated*beta.c3_rated)
T_as_in(tt_char) = T_a_out.HXC4(tt_char);
P_as_in(tt_char) = p_a_out.HXC4(tt_char);
CompOn.c4(tt_char) = 1;
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated*beta.c2_rated)
T_as_in(tt_char) = T_a_out.HXC3(tt_char);
P_as_in(tt_char) = p_a_out.HXC3(tt_char);
CompOn.c3(tt_char) = 1;
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
elseif P_as_in_SP_Req(tt_char)/p_a_in.c1(tt_char)>(beta.c1_rated)
T_as_in(tt_char) = T_a_out.HXC2(tt_char);
P_as_in(tt_char) = p_a_out.HXC2(tt_char);
CompOn.c2(tt_char) = 1;
CompOn.c1(tt_char) = 1;
else
CompOn.c1(tt_char) = 1;
T_as_in(tt_char) = T_a_out.HXC1(tt_char);
P_as_in(tt_char) = p_a_out.HXC1(tt_char);
end
end
eval('ChargingASUSP');
m_HTF.TES_in(tt_char) = [CompOn.c1(tt_char) CompOn.c2(tt_char) CompOn.c3(tt_char) CompOn.c4(tt_char) CompOn.c5(tt_char)]* ...
[m_HTF.HXC1(tt_char) m_HTF.HXC2(tt_char) m_HTF.HXC3(tt_char) m_HTF.HXC4(tt_char) m_HTF.HXC5(tt_char)]';
T_HTF.TES_in(tt_char) = [CompOn.c1(tt_char)*m_HTF.HXC1(tt_char) CompOn.c2(tt_char)*m_HTF.HXC2(tt_char) ...
CompOn.c3(tt_char)*m_HTF.HXC3(tt_char) CompOn.c4(tt_char)*m_HTF.HXC4(tt_char) ...
CompOn.c5(tt_char)*m_HTF.HXC5(tt_char)]*[T_HTF_out.HXC1(tt_char) T_HTF_out.HXC2(tt_char) ...
T_HTF_out.HXC3(tt_char) T_HTF_out.HXC4(tt_char) T_HTF_out.HXC5(tt_char)]'/m_HTF.TES_in(tt_char);
eval('ChargingTESSP');
if P_as.Char(tt_char) >= P_as_max.SP % stop charging process
Stop_Char = 1;
T_Char_End = tt_char;
disp(['Charging ended at ' num2str(T_Char_End*tstep/3600) ' h!'])
end
end
end
time_period_char = 1:T_Char_End;
%% DisCharging
P_as.disc0 = P_as.Char(T_Char_End);
M_as.disc0 = M_as.Char(T_Char_End);
T_as.disc0 = T_as.Char(T_Char_End);
M_TES.disc0 = M_TES.Char(T_Char_End);
T_TES.disc0 = T_TES.Char(T_Char_End);
while ~Stop_Disc
tt_disc = tt_disc + 1;
if strcmp(TV_Mode.Turb, 'SP')
eval('DischargingASUSP'); % ASU storage
p_as_out(tt_disc) = P_as.Disc(tt_disc); % attention
if P_as.Disc(tt_disc) <= P_as_min.SP % stop discharging process
Stop_Disc = 1;
T_Disc_End = tt_disc;
disp(['Discharging ended at ' num2str(T_Disc_End*tstep/3600) ' h!'])
end
eval('DischargingTESSP'); % TES storage
eval('CAESExpansionTrainSP'); % Expansion train
else
eval('DischargingASUCP');
p_as_out(tt_disc) = P_as_min.CP; % attention
if P_as.Disc(tt_disc) <= P_as_min.SP % stop discharging process
Stop_Disc = 1;
T_Disc_End = tt_disc;
disp(['Discharging ended at ' num2str(T_Disc_End*tstep/3600) ' h!'])
end
eval('DischargingTESCP'); % TES storage
eval('CAESExpansionTrainCP'); % Expansion train
end
end
time_period_disc = 1:T_Disc_End;
%% Performance Analysis
% Draw dynamic process
if DrawOption.Charging
eval('DrawCAESCharging');
end
if DrawOption.Discharging
eval('DrawCAESDischarging');
end
% Calculate the round-trip efficiency
eta_elec2elec = sum(tstep/60*W_disc.all(time_period_disc))/sum(tstep/60*W_char.all(time_period_char))
% Exergy
% data = janload('nasa.fit');
load mydata.mat mydata
HTF_Pressure = 0.13; % [MPa] can be updated
% compressir
exergy_in.c1 = W_char.c1; % [J]
exergy_in.c2 = W_char.c2; % [J]
exergy_in.c3 = W_char.c3; % [J]
exergy_in.c4 = W_char.c4; % [J]
exergy_in.c5 = W_char.c5; % [J]
exergy_out.c1 = m_air.comp.*(Cp.Air*(T_a_out.c1-T_a_in.c1)- ...
T0*(Cp.Air*log(T_a_out.c1./T_a_in.c1)-Rg*log(p_a_out.c1./p_a_in.c1))); % [J]
exergy_out.c2 = m_air.comp.*(Cp.Air*(T_a_out.c2-T_a_in.c2)- ...
T0*(Cp.Air*log(T_a_out.c2./T_a_in.c2)-Rg*log(p_a_out.c2./p_a_in.c2)));
exergy_out.c3 = m_air.comp.*(Cp.Air*(T_a_out.c3-T_a_in.c3)- ...
T0*(Cp.Air*log(T_a_out.c3./T_a_in.c3)-Rg*log(p_a_out.c3./p_a_in.c3)));
exergy_out.c4 = m_air.comp.*(Cp.Air*(T_a_out.c4-T_a_in.c4)- ...
T0*(Cp.Air*log(T_a_out.c4./T_a_in.c4)-Rg*log(p_a_out.c4./p_a_in.c4)));
exergy_out.c5 = m_air.comp.*(Cp.Air*(T_a_out.c5-T_a_in.c5)- ...
T0*(Cp.Air*log(T_a_out.c5./T_a_in.c5)-Rg*log(p_a_out.c5./p_a_in.c5)));
exergy_loss.c1 = exergy_in.c1 - exergy_loss.c1; % [J]
exergy_loss.c2 = exergy_in.c2 - exergy_loss.c2;
exergy_loss.c3 = exergy_in.c3 - exergy_loss.c3;
exergy_loss.c4 = exergy_in.c4 - exergy_loss.c4;
exergy_loss.c5 = exergy_in.c5 - exergy_loss.c5;
% turbine
exergy_in.e1 = m_air.turb.*(Cp.Air*(T_a_in.e1-T_a_out.e1)- ...
T0*(Cp.Air*log(T_a_in.e1./T_a_out.e1)-Rg*log(p_a_in.e1./p_a_out.e1))); % [J]
exergy_in.e2 = m_air.turb.*(Cp.Air*(T_a_in.e2-T_a_out.e2)- ...
T0*(Cp.Air*log(T_a_in.e2./T_a_out.e2)-Rg*log(p_a_in.e2./p_a_out.e2))); % [J]
exergy_in.e3 = m_air.turb.*(Cp.Air*(T_a_in.e3-T_a_out.e3)- ...
T0*(Cp.Air*log(T_a_in.e3./T_a_out.e3)-Rg*log(p_a_in.e3./p_a_out.e3))); % [J]
exergy_out.e1 = W_disc.e1; % [J]
exergy_out.e2 = W_disc.e2;
exergy_out.e3 = W_disc.e3;
exergy_loss.e1 = exergy_in.e1 - exergy_out.e1; % [J]
exergy_loss.e2 = exergy_in.e2 - exergy_out.e2;
exergy_loss.e3 = exergy_in.e3 - exergy_out.e3;
% heat exchanger at compressor side
exergy_in.HXC1 = m_air.comp.*(Cp.Air*(T_a_in.HXC1-T_a_out.HXC1) - T0*Cp.Air*log(T_a_in.HXC1./T_a_out.HXC1));
exergy_in.HXC2 = m_air.comp.*(Cp.Air*(T_a_in.HXC2-T_a_out.HXC2) - T0*Cp.Air*log(T_a_in.HXC2./T_a_out.HXC2));
exergy_in.HXC3 = m_air.comp.*(Cp.Air*(T_a_in.HXC3-T_a_out.HXC3) - T0*Cp.Air*log(T_a_in.HXC3./T_a_out.HXC3));
exergy_in.HXC4 = m_air.comp.*(Cp.Air*(T_a_in.HXC4-T_a_out.HXC4) - T0*Cp.Air*log(T_a_in.HXC4./T_a_out.HXC4));
exergy_in.HXC5 = m_air.comp.*(Cp.Air*(T_a_in.HXC5-T_a_out.HXC5) - T0*Cp.Air*log(T_a_in.HXC5./T_a_out.HXC5));
exergy_out.HXC1 = m_HTF.HXC1.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXC1, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXC1, HTF_Pressure*1e6))- ...
T0*m_HTF.HXC1.*(entropy(mydata, 'H2O', 1, T_HTF_out.HXC1, HTF_Pressure*1e6) - ...
entropy(mydata, 'H2O', 1, T_HTF_in.HXC1, HTF_Pressure*1e6));
exergy_out.HXC2 = m_HTF.HXC2.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXC2, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXC2, HTF_Pressure*1e6))- ...
T0*m_HTF.HXC2.*(entropy(mydata, 'H2O', 1, T_HTF_out.HXC2, HTF_Pressure*1e6) - ...
entropy(mydata, 'H2O', 1, T_HTF_in.HXC2, HTF_Pressure*1e6));
exergy_out.HXC3 = m_HTF.HXC3.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXC3, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXC3, HTF_Pressure*1e6))- ...
T0*m_HTF.HXC3.*(entropy(mydata, 'H2O', 1, T_HTF_out.HXC3, HTF_Pressure*1e6) - ...
entropy(mydata, 'H2O', 1, T_HTF_in.HXC3, HTF_Pressure*1e6));
exergy_out.HXC4 = m_HTF.HXC4.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXC4, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXC4, HTF_Pressure*1e6))- ...
T0*m_HTF.HXC4.*(entropy(mydata, 'H2O', 1, T_HTF_out.HXC4, HTF_Pressure*1e6) - ...
entropy(mydata, 'H2O', 1, T_HTF_in.HXC4, HTF_Pressure*1e6));
exergy_out.HXC5 = m_HTF.HXC5.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXC5, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXC5, HTF_Pressure*1e6))- ...
T0*m_HTF.HXC5.*(entropy(mydata, 'H2O', 1, T_HTF_out.HXC5, HTF_Pressure*1e6) - ...
entropy(mydata, 'H2O', 1, T_HTF_in.HXC5, HTF_Pressure*1e6));
exergy_loss.HXC1 = exergy_in.HXC1 - exergy_out.HXC1; % [J]
exergy_loss.HXC2 = exergy_in.HXC2 - exergy_out.HXC2;
exergy_loss.HXC3 = exergy_in.HXC3 - exergy_out.HXC3;
exergy_loss.HXC4 = exergy_in.HXC4 - exergy_out.HXC4; % here is the memory error
exergy_loss.HXC5 = exergy_in.HXC5 - exergy_out.HXC5;
% heat exchanger at turb side
exergy_in.HXH1 = m_HTF.HXH1.*(enthalpy(mydata,'H2O', 1, T_HTF_in.HXH1, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_out.HXH1, HTF_Pressure*1e6))- ...
T0*m_HTF.HXH1.*(entropy(mydata,'H2O', 1, T_HTF_in.HXH1, HTF_Pressure*1e6) - ...
entropy(mydata,'H2O', 1, T_HTF_out.HXH1, HTF_Pressure*1e6));
exergy_in.HXH2 = m_HTF.HXH2.*(enthalpy(mydata,'H2O', 1, T_HTF_in.HXH2, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_out.HXH2, HTF_Pressure*1e6))- ...
T0*m_HTF.HXH2.*(entropy(mydata,'H2O', 1, T_HTF_in.HXH2, HTF_Pressure*1e6) - ...
entropy(mydata,'H2O', 1, T_HTF_out.HXH2, HTF_Pressure*1e6));
exergy_in.HXH3 = m_HTF.HXH3.*(enthalpy(mydata,'H2O', 1, T_HTF_out.HXH3, HTF_Pressure*1e6)- ...
enthalpy(mydata,'H2O', 1, T_HTF_in.HXH3, HTF_Pressure*1e6))- ...
T0*m_HTF.HXH3.*(entropy(mydata,'H2O', 1, T_HTF_out.HXH3, HTF_Pressure*1e6) - ...
entropy(mydata,'H2O', 1, T_HTF_in.HXH3, HTF_Pressure*1e6));
exergy_out.HXH1 = m_air.turb.*(Cp.Air*(T_a_out.HXH1-T_a_in.HXH1)-T0*Cp.Air*log(T_a_out.HXH1./T_a_in.HXH1));
exergy_out.HXH2 = m_air.turb.*(Cp.Air*(T_a_out.HXH2-T_a_in.HXH2)-T0*Cp.Air*log(T_a_out.HXH2./T_a_in.HXH2));
exergy_out.HXH3 = m_air.turb.*(Cp.Air*(T_a_out.HXH3-T_a_in.HXH3)-T0*Cp.Air*log(T_a_out.HXH3./T_a_in.HXH3));
exergy_loss.HXH1 = exergy_in.HXH1 - exergy_out.HXH1;
exergy_loss.HXH2 = exergy_in.HXH2 - exergy_out.HXH2;
exergy_loss.HXH3 = exergy_in.HXH3 - exergy_out.HXH3;
% exergy loss at TV
% if strcmp(TV_Mode.Comp, '')
% exergy_in.TVC = Cp.Air*m_air.comp.*(T_a_out.HXC5 - T0*log(T_a_out.HXC5))
% else
%
% end
% sum exergy-in
% exergy_in.allcomp = exergy_in.c1 + exergy_in.c2 + exergy_in.c3 + exergy_in.c4 + exergy_in.c5;
% exergy_in.allturb = exergy_in.e1 + exergy_in.e2 + exergy_in.e3;
% exergy_in.allHXC = exergy_in.HXC1 + exergy_in.HXC2 + exergy_in.HXC3 + exergy_in.HXC4 + exergy_in.HXC5;
% exergy_in.allHXH = exergy_in.HXH1 + exergy_in.HXH2 + exergy_in.HXH3;
% exergy_in.all = exergy_in.allcomp + exergy_in.allturb + exergy_in.allHXC + exergy_in.allHXH;
%
% % sum exergy-out
% exergy_out.allcomp = exergy_out.c1 + exergy_out.c2 + exergy_out.c3 + exergy_out.c4 + exergy_out.c5;
% exergy_out.allturb = exergy_out.e1 + exergy_out.e2 + exergy_out.e3;
% exergy_out.allHXC = exergy_out.HXC1 + exergy_out.HXC2 + exergy_out.HXC3 + exergy_out.HXC4 + exergy_out.HXC5;
% exergy_out.allHXH = exergy_out.HXH1 + exergy_out.HXH2 + exergy_out.HXH3;
% exergy_out.all = exergy_out.allcomp + exergy_out.allturb + exergy_out.allHXC + exergy_out.allHXH;
% eta_exergy_elec =
% sum(exergy_out.all(time_period_disc))/sum(exergy_in.all()) wrong, totally
% wrong