The Condenser water loop tab is used to decouble the HWL from the Condenser water loop.
Condenser water loop with heat exchanger checkbox
Selecting the checkbox will be enable/disable the Condenser water loop.
Design condenser water flow rate (HX source-side flow)
The Design condenser water flow rate (HX source-side flow) specifies the flowrate through the condenser loop (from HRC condenser side outletto HX inlet and from HX outlet to HRC condenser side inlet. This input is interlocked with the Design condenser water temp difference (HX source-side delta-T) to maintain the required flowrate and differential temperature that satisfying the HRL heating capacity. Upon a change in the HRL heating capacity, the Design condener water flow rate (HX source-side flow) will change and the Design condenser water temp difference (HX source-side delta-T) will remain the same.
Design condenser water temp difference (HX source-side delta-T)
The Design condenser water temp difference (HX source-side delta-T) specifies the differential temperature between the entering and leaving water on the condenser side of the HX. It is interlocked with the Design condenser water flow rate (HX source-side flow).
While the HRL Mode is Heating driven, this input is read-only and displays the sum of the Design hot water loop supply temp. (discharge on recipient loop) and the user-specified Approach. While the HRL Mode is pre-cool & pre-heat, a user edit to the Design condenser leaving temp. (HX source-side entering temp) will change the Design hot water supply temp. (discharge on recipient loop) by the subtraction of the approach from the user edited value. When the approach is edited on the Condenser water loop the Design condenser leaving temp. (HX source-side entering temp) will change and the Design hot water supply temp. (discharge on recipient loop) will remain the same.
Heat exchanger design approach
The heat exchanger design approach is the temperature differential between Design condenerse leaving temp (HX source-side entering temp) and Design / max hot water supply temp (HX discharge on recipient loop). As the approach decreases the heat exchanger becomes more efficient. A change in the approach temperature will change the Design condenser leaving temp (HX source-side entering temp.) and the Design/max hot water supply temp (HX discharge on recipient loo) will remain the same.
Effectiveness
This effectiveness is in relation to the HX. The effectiveness is inversely proportional to the heat exchanger design approach. The effectiveness is calculated using the following:
