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Changed heat consumer flow control when qext_w is zero #681

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Changed heat consumer flow control when qext_w is zero #681

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9 changes: 6 additions & 3 deletions src/pandapipes/component_models/heat_consumer_component.py
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Original file line number Diff line number Diff line change
Expand Up @@ -78,12 +78,15 @@ def create_pit_branch_entries(cls, net, branch_pit):
treturn = net[cls.table_name()].treturn_k.values
hc_pit[~np.isnan(treturn), TOUTINIT] = treturn[~np.isnan(treturn)]
hc_pit[:, FLOW_RETURN_CONNECT] = True
mask_q0 = qext == 0 & np.isnan(mdot)

# Ensure no flow occurs through the heat consumer when qext_w is zero
mask_q0 = qext == 0
if np.any(mask_q0):
hc_pit[mask_q0, ACTIVE] = False
hc_pit[mask_q0, MDOTINIT] = 0 # Set mass flow to zero
logger.warning(r'qext_w is equals to zero for heat consumers with index %s. '
r'Therefore, the defined temperature control cannot be maintained.' \
r'Setting mdot to zero to ensure no flow.' \
%net[cls.table_name()].index[mask_q0])

return hc_pit

@classmethod
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