Buildings.Fluid.HeatPumps.ModularReversible.Validation

Collection of validation models

Information

This package contains validation models for the classes in Buildings.Fluid.HeatPumps.ModularReversible.

Note that most validation models contain simple input data which may not be realistic, but for which the correct output can be obtained through an analytic solution. The examples plot various outputs, which have been verified against these solutions. These model outputs are stored as reference data and used for continuous validation whenever models in the library change.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
ConstantCarnotEffectiveness
TableData2D
Comparative	Package for comparative model validation
BaseClasses	Partial validation models

Buildings.Fluid.HeatPumps.ModularReversible.Validation.ConstantCarnotEffectiveness

Information

This validation case uses a constant Carnot effectiveness to model the efficiency of the heat pump.

The approach was calibrated as a comparison to table-based data in the conference paper for the heat pump model: https://doi.org/10.3384/ecp21181561

Extends from Modelica.Icons.Example (Icon for runnable examples), Buildings.Fluid.HeatPumps.ModularReversible.Validation.BaseClasses.PartialValidation (Validation base case for the reversible heat pump model.).

Parameters

Type	Name	Default	Description
replaceable package MediumSin		Water	Medium of sink side
replaceable package MediumSou		Water	Medium of source side
Real	etaCarnot_nominal	0.4318	Calibrated constant Carnot effectiveness
Power	PEle_nominal	1884.218212	Calibrated nominal electrical power consumption [W]
MassFlowRate	mCon_flow_nominal	0.407396	Calibrated condenser nominal mass flow rate [kg/s]
Volume	VCon	0.0015972	Calibrated condenser volume [m3]
Frequency	refIneFreConst	13.2e-3	Calibrated cut off frequency for inertia of refrigerant cycle [Hz]

Connectors

Type	Name	Description
output RealOutput	TConOutMea	Measured condenser outlet [K]
output RealOutput	TEvaOutMea	Measured evaporator outlet [K]
output RealOutput	PEleMea	Measured electrical power consumption [W]
output RealOutput	PEleSim	Simulated electrical power consumption [W]
output RealOutput	TConOutSim	Simulated condenser outlet [K]
output RealOutput	TEvaOutSim	Simulated evaporator outlet [K]

Modelica definition

model ConstantCarnotEffectiveness extends Modelica.Icons.Example; extends Buildings.Fluid.HeatPumps.ModularReversible.Validation.BaseClasses.PartialValidation ( heaPum( QHea_flow_nominal=etaCarnot_nominal*PEle_nominal*heaPum.TConHea_nominal/(heaPum.TConHea_nominal - heaPum.TEvaHea_nominal), mCon_flow_nominal=mCon_flow_nominal, tauCon=VCon*heaPum.rhoCon/mCon_flow_nominal, redeclare model RefrigerantCycleInertia = Buildings.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.Inertias.VariableOrder ( refIneFreConst=refIneFreConst, nthOrd=2, initType=Modelica.Blocks.Types.Init.InitialState), redeclare model RefrigerantCycleHeatPumpHeating = Buildings.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.ConstantCarnotEffectiveness (TAppCon_nominal=0, TAppEva_nominal=0, etaCarnot_nominal=etaCarnot_nominal))); parameter Real etaCarnot_nominal=0.4318 "Calibrated constant Carnot effectiveness"; parameter Modelica.Units.SI.Power PEle_nominal=1884.218212 "Calibrated nominal electrical power consumption"; parameter Modelica.Units.SI.MassFlowRate mCon_flow_nominal=0.407396 "Calibrated condenser nominal mass flow rate"; parameter Modelica.Units.SI.Volume VCon=0.0015972 "Calibrated condenser volume"; parameter Modelica.Units.SI.Frequency refIneFreConst=13.2e-3 "Calibrated cut off frequency for inertia of refrigerant cycle"; end ConstantCarnotEffectiveness;

Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D

Information

This validation case uses table-based data for the heat pump.

The approach was calibrated as a comparison to constant Carnot effectiveness approach in the conference paper for the heat pump model: https://doi.org/10.3384/ecp21181561

Parameters

Type	Name	Default	Description
replaceable package MediumSin		Water	Medium of sink side
replaceable package MediumSou		Water	Medium of source side
MassFlowRate	mCon_flow_nominal	0.404317	Condenser nominal mass flow rate [kg/s]
Volume	VCon	0.004473	Condenser volume [m3]
Frequency	refIneFreConst	0.011848	Cut off frequency for inertia of refrigerant cycle [Hz]

Connectors

Type	Name	Description
output RealOutput	TConOutMea	Measured condenser outlet [K]
output RealOutput	TEvaOutMea	Measured evaporator outlet [K]
output RealOutput	PEleMea	Measured electrical power consumption [W]
output RealOutput	PEleSim	Simulated electrical power consumption [W]
output RealOutput	TConOutSim	Simulated condenser outlet [K]
output RealOutput	TEvaOutSim	Simulated evaporator outlet [K]

Modelica definition

model TableData2D extends Modelica.Icons.Example; extends Buildings.Fluid.HeatPumps.ModularReversible.Validation.BaseClasses.PartialValidation ( heaPum( QHea_flow_nominal=heaPum.refCyc.refCycHeaPumHea.QHeaNoSca_flow_nominal, mCon_flow_nominal=mCon_flow_nominal, tauCon=VCon*heaPum.rhoCon/mCon_flow_nominal, redeclare model RefrigerantCycleInertia = Buildings.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.Inertias.VariableOrder ( refIneFreConst=refIneFreConst, nthOrd=2, initType=Modelica.Blocks.Types.Init.InitialState), redeclare model RefrigerantCycleHeatPumpHeating = Buildings.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.TableData2D ( datTab= Buildings.Fluid.HeatPumps.ModularReversible.Data.TableData2D.GenericHeatPump( tabPEle=[0,273.15,283.15; 308.15,1300,1500; 328.15,1900,2300], mCon_flow_nominal=6100/5/4184, mEva_flow_nominal=4800/5/4184, dpCon_nominal=0, dpEva_nominal=0, devIde="Vaillaint_VWL101", use_TEvaOutForTab=false, use_TConOutForTab=true, tabQCon_flow=[0,273.15,283.15; 308.15,6100,8400; 328.15,5700,7600], tabUppBou=[-40,70; 40,70])))); parameter Modelica.Units.SI.MassFlowRate mCon_flow_nominal=0.404317 "Condenser nominal mass flow rate"; parameter Modelica.Units.SI.Volume VCon=0.004473 "Condenser volume"; parameter Modelica.Units.SI.Frequency refIneFreConst=0.011848 "Cut off frequency for inertia of refrigerant cycle"; end TableData2D;