blockEquationFitReversible

Equation fit method to compute the performance of the reversable heat pump
Diagram of EquationFitReversibleOpen the diagram
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Extends from Modelica.Blocks.Icons.Block (Basic graphical layout of input/output block).

Information

Block that implements the equation fit method for the reverse heat pump model Buildings.Fluid.HeatPumps.EquationFitReversible.

Parameters

TypeNameDefaultDescription
Data.EquationFitReversible.GenericperPerformance data
Realscaling_factorScaling factor for heat pump capacity
Modelica.Units.SI.HeatFlowRateQ_flow_smallper.hea.Q_flow*1E-9*scaling_factorSmall value for heat flow rate or power, used to avoid division by zero

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.IntegerInputuModControl input signal, cooling mode= -1, off=0, heating mode=+1
Modelica.Blocks.Interfaces.RealInputTLoaEntLoad entering fluid temperature
Modelica.Blocks.Interfaces.RealInputTSouEntSource entering fluid temperature
Modelica.Blocks.Interfaces.RealInputmLoa_flowMass flow rate at load side
Modelica.Blocks.Interfaces.RealInputmSou_flowMass flow rate at source side
Modelica.Blocks.Interfaces.RealInputQ_flow_setRequired heat to meet set point
Modelica.Blocks.Interfaces.RealOutputQLoa_flowLoad heat flow rate
Modelica.Blocks.Interfaces.RealOutputQSou_flowSource heat flow rate
Modelica.Blocks.Interfaces.RealOutputPCompressor power
Modelica.Blocks.Interfaces.RealOutputCOPCoefficient of performance, assuming useful heat is at the load side (at Medium 1)

Components

TypeNameDefaultDescription
Modelica.Units.SI.EfficiencyQRel_flowThermal load ratio
Modelica.Units.SI.EfficiencyPRelPower ratio
Modelica.Units.SI.HeatFlowRateQ_flow_avaHeat (or cooling) capacity available
RealPLRPart load ratio

Revisions

  • September 16, 2019 by Michael Wetter:
    Refactored implementation.
  • May 19, 2019, by Hagar Elarga:
    First implementation.