modelInversion

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

Information

Examples of a two stage vapor cycle. See TUMExercisesThermodynamicCycles.Exercise8TwoStageRefrigerationCycle for problem description.

This example uses the InverseBlockConstraints model resulting in implicit nonlinear equations. These equations require suitable start values to be solvable.

Parameters

TypeNameDefaultDescription
Cooling requirement
SI.Massm75Mass to be cooled
SI.SpecificHeatCapacityc2e3Specific heat capacity
SI.TemperatureDifferencedT40Temperature difference
SI.Timeduration900Time

Components

TypeNameDefaultDescription
ThermofluidStream.Idealized.Processes.AdiabaticlowPressureCompressor
ThermofluidStream.DropOfCommonsdropOfCommons
ThermofluidStream.Idealized.Processes.IsenthalpiclowPressureValve
ThermofluidStream.Idealized.Processes.Isobaricevaporator
ThermofluidStream.Idealized.Boundaries.LoopBreakerloopBreaker
Modelica.Blocks.Sources.RealExpressionh_dew
ThermofluidStream.Idealized.Processes.AdiabatichighPressureCompressor
ThermofluidStream.Idealized.Processes.Isobariccondensor
ThermofluidStream.Idealized.Processes.IsenthalpichighPressureValve
ThermofluidStream.Idealized.Components.SeparatorflashChamber
ThermofluidStream.Idealized.Boundaries.LoopBreakerloopBreaker1
Modelica.Blocks.Sources.RealExpressionh_dew1
ThermofluidStream.Sensors.TwoPhaseSensorSelectvaporQuality
ThermofluidStream.Utilities.showRealValuelowPressureCompressorOutletTemperature
ThermofluidStream.Utilities.showRealValuevalveOutletVaporQuality
ThermofluidStream.Utilities.showRealValueLowPressureCompressorPower
ThermofluidStream.Utilities.showRealValueElectricPower
ThermofluidStream.Utilities.showRealValueshowRealValue5
Modelica.Blocks.Sources.RealExpressionh_bubble
ThermofluidStream.Idealized.EnergyFlow.Sources.FixedEnergyFlowheatFlow
ThermofluidStream.Idealized.EnergyFlow.Components.FixedTransferEfficiencylosses
ThermofluidStream.Idealized.EnergyFlow.Components.SumshaftPower
Modelica.Blocks.Math.InverseBlockConstraintsinverseBlockConstraints
Modelica.Blocks.Sources.RealExpressiontemperature
ThermofluidStream.Sensors.SingleSensorSelecttemperatureSensor

Contents

NameDescription
Medium

Revisions

  • 2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
    Initial version.