Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Modelling a ground-source heat pump with underfloor heating and cooling

Hi!

I am trying to model a heating and cooling systems that uses a ground-source loop and then a water-to-water heatpump to be used in an underfloor heating and cooling system (the same tubes are used, just in a different mode). This has probably been done, but I can't seem to find the appropriate water-to-water heatpump.

I am looking at combining ZoneHVAC:LowTempRadiant:VariableFlow with a WaterHeater:HeatPump:EIR:(Heating/Cooling), but I don't see how I would use the same system for both heating and cooling? I am pretty new to modelling my own systems with custom nodes, pipes and so on, so forgive me the basic question.

Thanks in advance for your answers!

Modelling a ground-source heat pump with underfloor heating and cooling

Hi!

I am trying to model a heating and cooling systems that uses a ground-source loop and then a water-to-water heatpump to be used in an underfloor heating and cooling system (the same tubes are used, just in a different mode). This has probably been done, but I can't seem to find the appropriate water-to-water heatpump.

I am looking at combining ZoneHVAC:LowTempRadiant:VariableFlow with a WaterHeater:HeatPump:EIR:(Heating/Cooling), but I don't see how I would use the same system for both heating and cooling? I am pretty new to modelling my own systems with custom nodes, pipes and so on, so forgive me the basic question.

Thanks in advance for your answers!

Modelling a ground-source heat pump with underfloor heating and cooling

Hi!

I am trying to model a heating and cooling systems that uses a ground-source loop and then a water-to-water heatpump to be used in an underfloor heating and cooling system (the same tubes are used, just in a different mode). This has probably been done, but I can't seem to find the appropriate water-to-water heatpump.

I am looking at combining ZoneHVAC:LowTempRadiant:VariableFlow with a WaterHeater:HeatPump:EIR:(Heating/Cooling), but I don't see how I would use the same system for both heating and cooling? I am pretty new to modelling my own systems with custom nodes, pipes and so on, so forgive me the basic question.

Thanks in advance for your answers!

Modelling a ground-source heat pump with underfloor heating and coolingcooling [EnergyPlus]

Hi!

I am trying to model a heating and cooling systems that uses a ground-source loop and then a water-to-water heatpump to be used in an underfloor heating and cooling system (the same tubes are used, just in a different mode). This has probably been done, but I can't seem to find the appropriate water-to-water heatpump.

I am looking at combining ZoneHVAC:LowTempRadiant:VariableFlow with a WaterHeater:HeatPump:EIR:(Heating/Cooling), but I don't see how I would use the same system for both heating and cooling? I am pretty new to modelling my own systems with custom nodes, pipes and so on, so forgive me the basic question.

Thanks in advance for your answers!

Update 11-12-23: Solution found (see Keigo's answer below and the final version in EP v9.2 language on Dropbox here: https://www.dropbox.com/scl/fi/fe4n3o3ne099fshmn5p0o/HVAC-Definition-Ground-Source-Heat-Pump-with-Underfloor-Heating.paper?rlkey=j70e8uy9pmflcenvhbe7w5irk&dl=0)