Iâ??m considering the example file CentralChillerHeaterSystem_Cooling_Heating.idf (available in C:\EnergyPlusV8-7-0\ExampleFiles)
It models a CentralHeatPumpSystem
As you can see in the attached excel file, the BIG CHILLER INLET NODE temperature and the BIG CHILLER OUTLET NODE temperature are the same. Nevertheless, the â??Chiller Heater System Cooling Rateâ?? is not 0. I would expect
(outlet temperature - inlet temperature) * dm/dt * c = W
Am I misunderstanding something?
Moreover, I would expect that there is some relationships among the following output:
- Ground Heat Exchanger Heat Transfer Rate
- Plant Supply Side Cooling Demand Rate, CHILLED WATER CONDENSER LOOP
- Plant Supply Side Heating Demand Rate, CHILLED WATER CONDENSER LOOP
But if I consider the output data Iâ??m not able to find the relationship.
Best Regards
Francesco