modelHeatPumpGroupAirToWater

Validation model for heat pump group with AWHP

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

This model validates the model Buildings.Templates.Plants.HeatPumps.Components.HeatPumpGroups.AirToWater in a configuration in which the heat pump group components are exposed to a constant differential pressure and a varying return temperature.

The model is configured to represent either a non-reversible heat pump group (component hpAwNrv) or a reversible heat pump group (component hpAw) that switches between cooling and heating mode.

Parameters

Type	Name	Default	Description
Integer	nHp	3	Number of heat pumps (excluding polyvalent HPs)
Data.Controller	datCtlPlaAwNrv		Controller parameters
Data.Controller	datCtlPlaAw		Controller parameters
Buildings.Templates.Plants.HeatPumps.Components.Data.HeatPumpGroup	datHpAwNrv		Non-reversible AWHP parameters
Buildings.Templates.Plants.HeatPumps.Components.Data.HeatPumpGroup	datHpAw		Reversible AWHP parameters
Dynamics › Conservation equations
Modelica.Fluid.Types.Dynamics	energyDynamics	Modelica.Fluid.Types.Dynamics.FixedInitial	Type of energy balance: dynamic (3 initialization options) or steady state

Connectors

Type	Name	Default	Description
Buildings.Templates.Plants.HeatPumps.Interfaces.Bus	busPla		Plant controller
Buildings.Templates.Components.Interfaces.Bus[nHp]	busHp		HP control bus

Components

Type	Name	Description
Fluid.Sources.Boundary_pT	sup	Boundary condition at distribution system supply
Fluid.Sources.Boundary_pT	inlHp1	Boundary conditions at HP inlet
BoundaryConditions.WeatherData.ReaderTMY3	weaDat
Fluid.Sensors.TemperatureTwoPort[nHp]	TRet1	Return temperature
Fluid.Sensors.TemperatureTwoPort[nHp]	TSup1	Supply temperature
Controls.OpenLoop	ctlPlaAwNrv	Plant controller
HeatPumpGroups.AirToWater	hpAwNrv	Non reversible AWHP
Buildings.Controls.OBC.CDL.Reals.Sources.Sin	THeaWatRet	HW return temperature value
Buildings.Controls.OBC.CDL.Reals.Sources.Constant	pHeaWatInl	HW inlet pressure
HeatPumpGroups.AirToWater	hpAw	Reversible AWHP
Controls.OpenLoop	ctlPlaAw	Plant controller
Fluid.Sources.Boundary_pT	inlHp	Boundary conditions at HP inlet
Fluid.Sensors.TemperatureTwoPort[nHp]	TRet	Return temperature
Fluid.Sources.Boundary_pT	sup1	Boundary condition at distribution system supply
Fluid.Sensors.TemperatureTwoPort[nHp]	TSup	Supply temperature
Buildings.Controls.OBC.CDL.Reals.Sources.Sin	THeaWatRet1	HW return temperature value
Buildings.Controls.OBC.CDL.Reals.Sources.Sin	TChiWatRet	CHW return temperature value
Buildings.Controls.OBC.CDL.Reals.Sources.Constant	pHeaWatInl1	HW inlet pressure
Buildings.Controls.OBC.CDL.Reals.Sources.Constant	pChiWatInl	CHW inlet pressure
Buildings.Controls.OBC.CDL.Reals.Switch	TRetAct	Active return temperature
Buildings.Controls.OBC.CDL.Reals.Switch	pInl_rel	Active inlet gaupe pressure

Name	Description
Medium

Revisions

August 21, 2025, by Antoine Gautier:
Refactored with load-dependent 2D table data heat pump model.
This is for #4152.
March 29, 2024, by Antoine Gautier:
First implementation.