modelInnerCycle_HeatPump

Blackbox model of refrigerant cycle of a heat pump
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Extends from AixLib.Obsolete.Year2024.Fluid.BaseClasses.PartialInnerCycle (Blackbox model of refrigerant cycle of a vapour compression machine (heat pump or chiller)), AixLib.Obsolete.BaseClasses.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).

Information

This black box model represents the refrigerant cycle of a heat pump. Used in AixLib.Obsolete.Year2024.Fluid.HeatPumps.HeatPump, this model serves the simulation of a reversible heat pump. Thus, data both of chillers and heat pumps can be used to calculate the three relevant values P_el, QCon and QEva. The mode of the heat pump is used to switch between the performance data of the chiller and the heat pump.

The user can choose between different types of performance data or implement a new black-box model by extending from the partial model.

  • LookUpTable2D: Use 2D-data based on the DIN EN 14511
  • LookUpTableND: Use SDF-data tables to model invertercontroller heat pumps or include other dependencies (ambient temperature etc.)
  • PolynomalApproach: Use a function based approach to calculate the ouputs. Different functions are already implemented.

Parameters

TypeNameDefaultDescription
Booleanuse_rev (from PartialInnerCycle)trueTrue if the vapour compression machine is reversible
RealscalingFactor (from PartialInnerCycle)1Scaling factor of vapour compression machine

Connectors

TypeNameDefaultDescription
AixLib.Obsolete.Year2024.Controls.Interfaces.VapourCompressionMachineControlBussigBus (from PartialInnerCycle)
Modelica.Blocks.Interfaces.RealOutputQCon (from PartialInnerCycle)Heat Flow to condenser
Modelica.Blocks.Interfaces.RealOutputQEva (from PartialInnerCycle)Heat flow from evaporator
Modelica.Blocks.Interfaces.RealOutputPel (from PartialInnerCycle)Electrical power consumed by compressor

Components

TypeNameDefaultDescription
Modelica.Blocks.Sources.ConstantconstZero (from PartialInnerCycle)If no heating is used, the switches may still be connected
Utilities.Logical.SmoothSwitchswitchQEva (from PartialInnerCycle)If mode is false, Condenser becomes Evaporator and vice versa
Utilities.Logical.SmoothSwitchswitchQCon (from PartialInnerCycle)If mode is false, Condenser becomes Evaporator and vice versa
AixLib.Utilities.Logical.SmoothSwitchswitchPel (from PartialInnerCycle)Whether to use cooling or heating power consumption
PerDataMainHPPerformanceDataHPHeating
PerDataRevHPPerformanceDataHPCooling
Modelica.Blocks.Math.GaingainEvaNegate QEva to match definition of heat flow direction
Modelica.Blocks.Math.GaingainConNegate QCon to match definition of heat flow direction

Contents

NameDescription
PerDataMainHP
PerDataRevHP

Revisions

  • May 22, 2019 by Julian Matthes:
    Rebuild due to the introducion of the thermal machine partial model (see issue #715)
  • November 26, 2018  by Fabian Wüllhorst:
    First implementation (see issue #577)