modelPartialOneRoomRadiator

Simple room model with radiator, without a heat pump

Information

Motivated by the example IDEAS.Fluid.HeatPumps.Examples.ScrollWaterToWater_OneRoomRadiator, this example enables the use of the ModularReversible approach for heat pumps and chillers.

Both heating and cooling of the room is possible by using the reversible approach. For heating, 20 degC room temperature is the set point, for cooling 23 degC.

The radiator minimal supply temperature is 23 degC.

Parameters

Type	Name	Default	Description
Modelica.Units.SI.HeatFlowRate	Q_flow_nominal	20000	Nominal heat flow rate of radiator
Modelica.Units.SI.Temperature	TRadSup_nominal	273.15 + 50	Radiator nominal supply water temperature
Modelica.Units.SI.Temperature	TRadRet_nominal	273.15 + 45	Radiator nominal return water temperature
Modelica.Units.SI.MassFlowRate	mCon_flow_nominal	Q_flow_nominal/4200/5	Heat pump nominal mass flow rate in condenser
Modelica.Units.SI.MassFlowRate	mEva_flow_nominal		Heat pump nominal mass flow rate in evaporator
Modelica.Units.SI.Volume	V	6103	Room volume
Modelica.Units.SI.MassFlowRate	mAirRoo_flow_nominal	V1.26/3600	Nominal mass flow rate of room air
Modelica.Units.SI.HeatFlowRate	QRooInt_flow	Q_flow_nominal/5	Internal heat gains of the room
Boolean	witCoo	true	=true to simulate cooling behaviour

Connectors

Type	Name	Default	Description
IDEAS.BoundaryConditions.WeatherData.Bus	weaBus		Weather data bus

Components

Type	Name	Description
IDEAS.Fluid.MixingVolumes.MixingVolume	vol
Modelica.Thermal.HeatTransfer.Components.ThermalConductor	theCon	Thermal conductance with the ambient
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow	preHea	Prescribed heat flow
Modelica.Thermal.HeatTransfer.Components.HeatCapacitor	heaCap	Heat capacity for furniture and walls
Modelica.Blocks.Sources.CombiTimeTable	timTab	Time table for internal heat gain
IDEAS.Fluid.HeatExchangers.Radiators.RadiatorEN442_2	rad	Radiator
IDEAS.Fluid.Sensors.TemperatureTwoPort	temSup	Supply water temperature
Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor	temRoo	Room temperature
IDEAS.Fluid.Movers.Preconfigured.FlowControlled_m_flow	pumHeaPum	Pump for radiator side
IDEAS.Fluid.Sensors.TemperatureTwoPort	temRet	Return water temperature
IDEAS.BoundaryConditions.WeatherData.ReaderTMY3	weaDat	Weather data reader
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature	TOut	Outside temperature
IDEAS.Fluid.Movers.Preconfigured.FlowControlled_m_flow	pumHeaPumSou	Pump for heat pump source side
Modelica.Blocks.Math.BooleanToReal	booToReaPumCon	Pump signal
IDEAS.Fluid.Sources.Boundary_pT	sou	Fluid source on source side
IDEAS.Fluid.Sources.Boundary_pT	sin	Fluid sink on source side
IDEAS.Fluid.Sources.Boundary_pT	preSou	Source for pressure and to account for thermal expansion of water
Modelica.Blocks.Math.BooleanToReal	booToReaPumEva	Pump signal
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow	preHeaCoo	Prescribed heat flow to trigger cooling
Modelica.Blocks.Sources.Pulse	cooLoa	Cooling load with step
IDEAS.Fluid.HeatPumps.ModularReversible.Examples.BaseClasses.OneRoomRadiatorHeatPumpControl	oneRooRadHeaPumCtr	Control block for single room heat pump control
Modelica.Blocks.Sources.BooleanConstant	conPumAlwOn	Let the pumps always run, due to inertia of the heat pump

Name	Description
MediumAir	Medium model for air
MediumWat	Medium model for water
MediumEva

Revisions

March 7, 2025, by Michael Wetter:
Introduced medium MediumEva and refactored medium assignment as the model replaced non-replaceable medium bindings.
This is for #1981.
October 2, 2022 by Fabian Wuellhorst:
First implementation (see issue #1576)
January 27, 2017, by Massimo Cimmino:
First implementation.