modelIndirectCooling

Indirect cooling circuit

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

Information

3rd test example: IndirectCooling

A prescribed heat sources dissipates its heat through a thermal conductor to the inner coolant cycle. It is necessary to define the pressure level of the inner coolant cycle. The inner coolant cycle is coupled to the outer coolant flow through a thermal conductor.
Inner coolant's temperature rise near the source is the same as temperature drop near the cooler.
Results:
output explanation formula actual steady-state value
dTSource Temperature difference between heat source and ambient condition dtouterCoolant + dtCooler + dTinnerCoolant + dtToPipe 40 K
dTtoPipe Temperature difference between heat source and coolant in pipe 1 Losses / ThermalConductor.G 10 K
dTinnerCoolant Inner Coolant's temperature increase Losses * cp * innerMassFlow 10 K
dTCooler Coolant temperature difference between inner pipe and outer pipe Losses * (innerGc + outerGc) 10 K
dTouterCoolant Outer coolant's temperature increase Losses * cp * outerMassFlow 10 K

Parameters

TypeNameDefaultDescription
FluidHeatFlow.Media.MediumouterMediumFluidHeatFlow.Media.Medium()Outer medium
FluidHeatFlow.Media.MediuminnerMediumFluidHeatFlow.Media.Medium()Inner medium
SI.TemperatureTAmb293.15Ambient temperature

Components

TypeNameDefaultDescription
SI.TemperatureDifferencedTSourceprescribedHeatFlow.port.T - TAmbTemperature difference between heat source and ambient condition
SI.TemperatureDifferencedTtoPipeprescribedHeatFlow.port.T - pipe1.T_qTemperature difference between heat source and coolant in pipe 1
SI.TemperatureDifferencedTinnerCoolantpipe1.dTInner Coolant's temperature increase
SI.TemperatureDifferencedTCoolerinnerPipe.T_q - outerPipe.T_qCoolant temperature difference between inner pipe and outer pipe
SI.TemperatureDifferencedTouterCoolantouterPipe.dTOuter coolant's temperature increase
FluidHeatFlow.Sources.Ambientambient1
FluidHeatFlow.Sources.VolumeFlowouterPump
FluidHeatFlow.Sources.Ambientambient2
Modelica.Thermal.HeatTransfer.Components.ThermalConductorthermalConductor
Modelica.Thermal.HeatTransfer.Components.HeatCapacitorheatCapacitor
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlowprescribedHeatFlow
FluidHeatFlow.Components.Pipepipe1
FluidHeatFlow.Sources.AbsolutePressureabsolutePressure
FluidHeatFlow.Sources.VolumeFlowinnerPump
Modelica.Blocks.Sources.ConstantheatFlow
Modelica.Blocks.Sources.ConstantouterVolumeFlow
Modelica.Blocks.Sources.ConstantinnerVolumeFlow
Modelica.Blocks.Sources.ConstantouterGc
Modelica.Blocks.Sources.ConstantinnerGc
FluidHeatFlow.Components.PipeouterPipe
FluidHeatFlow.Components.PipeinnerPipe
Modelica.Thermal.HeatTransfer.Components.ConvectioninnerConvection
Modelica.Thermal.HeatTransfer.Components.ConvectionouterConvection