modelHeatRecoveryChiller
Heat recovery chiller for sidestream integration
Extends from Buildings.Fluid.Interfaces.PartialFourPortInterface.
Information
Model of a heat recovery chiller with constant speed CHW and HW pumps. The model is intended to represent the sidestream integration of a HRC into a heating and cooling plant. In such a configuration, the condenser is connected to the HW return and the evaporator is connected to the CHW return.
Control points
The following input and output points are available.
- Chiller: Refer to the documentation of
Buildings.Templates.Components.Chillers.Compression
considering
have_switchover=trueandtyp=Buildings.Templates.Components.Types.Chiller.WaterCooled. - CHW pump or HW pump: Refer to the documentation of Buildings.Templates.Components.Pumps.Single.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Templates.Components.Data.PumpSingle | datPumChiWat | HRC CHW pump parameters | |
| Buildings.Templates.Components.Data.PumpSingle | datPumHeaWat | HRC HW pump parameters | |
| Buildings.Templates.Components.Data.Chiller | datHrc | HRC parameters | |
| Modelica.Units.SI.MassFlowRate | mChiWat_flow_nominal | hrc.mChiWat_flow_nominal | Design CHW mass flow rate |
| Modelica.Units.SI.MassFlowRate | mCon_flow_nominal | hrc.mCon_flow_nominal | Design condenser cooling fluid mass flow rate |
| Modelica.Units.SI.HeatFlowRate | QChiWat_flow_nominal | hrc.QChiWat_flow_nominal | Design cooling heat flow rate |
| Modelica.Units.SI.PressureDifference | dpChiWat_nominal | hrc.dpChiWat_nominal | Design CHW pressure drop |
| Modelica.Units.SI.PressureDifference | dpCon_nominal | hrc.dpCon_nominal | Design condenser cooling fluid pressure drop |
| Modelica.Units.SI.Temperature | TChiWatSup_nominal | hrc.TChiWatSup_nominal | Design CHW supply temperature |
| Modelica.Units.SI.Temperature | TChiWatRet_nominal | hrc.TChiWatRet_nominal | Design CHW return temperature |
| Modelica.Units.SI.HeatFlowRate | QCon_flow_nominal | hrc.QCon_flow_nominal | Design condenser heat flow rate |
| Modelica.Units.SI.Temperature | TConEnt_nominal | hrc.TConEnt_nominal | Design condenser entering fluid temperature |
| Modelica.Units.SI.Temperature | TConLvg_nominal | hrc.TConLvg_nominal | Design condenser leaving fluid temperature |
| Dynamics › Nominal condition | |||
| Modelica.Units.SI.Time | tauHrc | 30 | HRC – Time constant at nominal flow, used if energy or mass balance is dynamic |
| Modelica.Units.SI.Time | tauPum | 1 | Pump – Time constant of fluid volume for nominal flow, used if energy or mass balance is dynamic |
| Dynamics › Conservation equations | |||
| Modelica.Fluid.Types.Dynamics | energyDynamics | Modelica.Fluid.Types.Dynamics.DynamicFreeInitial | Type of energy balance: dynamic (3 initialization options) or steady state |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Templates.Plants.HeatPumps.Interfaces.Bus | bus | Plant control bus | |
| Buildings.Templates.Components.Chillers.Compression | hrc | Heat recovery chiller | |
| Buildings.Templates.Components.Pumps.Single | pumChiWat | HRC CHW pump | |
| Buildings.Templates.Components.Pumps.Single | pumHeaWat | HRC HW pump |
Contents
| Name | Description |
|---|---|
| MediumChiWat | |
| MediumHeaWat |
Revisions
-
April 18, 2025, by Antoine Gautier:
Refactored with load-dependent 2D table data heat recovery chiller model.
This is for #4152. -
May 31, 2024, by Antoine Gautier:
First implementation.