Buildings.Fluid.Chillers.Data.BaseClasses

Information

Extends from Modelica.Fluid.Icons.BaseClassLibrary (Icon for library).

Package Content

Name	Description
Chiller	Base classes for chiller models

Buildings.Fluid.Chillers.Data.BaseClasses.Chiller

Information

Extends from Modelica.Icons.Record (Icon for records).

Parameters

Type	Name	Default	Description
Real	PLRMax		Maximum part load ratio
Real	PLRMinUnl		Minimum part unload ratio
Real	PLRMin		Minimum part load ratio
Real	etaMotor		Fraction of compressor motor heat entering refrigerant
Nominal condition
HeatFlowRate	QEva_flow_nominal		Reference capacity (negative number) [W]
Real	COP_nominal		Reference coefficient of performance
MassFlowRate	mEva_flow_nominal		Nominal mass flow at evaporator [kg/s]
MassFlowRate	mCon_flow_nominal		Nominal mass flow at condenser [kg/s]
Temperature	TEvaLvg_nominal		Temperature of fluid leaving evaporator at nominal condition [K]
Performance curves
Integer	nCapFunT		Number of coefficients for capFunT
Integer	nEIRFunT		Number of coefficients for capFunT
Integer	nEIRFunPLR		Number of coefficients for capFunT
Real	capFunT[nCapFunT]		Biquadratic coefficients for capFunT
Real	EIRFunT[nEIRFunT]		Biquadratic coefficients for EIRFunT
Real	EIRFunPLR[nEIRFunPLR]		Coefficients for EIRFunPLR
Temperature	TEvaLvgMin		Minimum value for leaving evaporator temperature [K]
Temperature	TEvaLvgMax		Maximum value for leaving evaporator temperature [K]

Modelica definition

record Chiller "Base classes for chiller models"
  extends Modelica.Icons.Record;
  parameter Modelica.SIunits.HeatFlowRate QEva_flow_nominal(max=0) 
    "Reference capacity (negative number)";
  parameter Real COP_nominal "Reference coefficient of performance";

  parameter Real PLRMax(min=0) "Maximum part load ratio";
  parameter Real PLRMinUnl(min=0) "Minimum part unload ratio";
  parameter Real PLRMin(min=0) "Minimum part load ratio";

  parameter Real etaMotor(min=0, max=1) 
    "Fraction of compressor motor heat entering refrigerant";

  parameter Modelica.SIunits.MassFlowRate mEva_flow_nominal 
    "Nominal mass flow at evaporator";
  parameter Modelica.SIunits.MassFlowRate mCon_flow_nominal 
    "Nominal mass flow at condenser";
  parameter Modelica.SIunits.Temperature TEvaLvg_nominal 
    "Temperature of fluid leaving evaporator at nominal condition";

  constant Integer nCapFunT "Number of coefficients for capFunT";
  constant Integer nEIRFunT "Number of coefficients for capFunT";
  constant Integer nEIRFunPLR "Number of coefficients for capFunT";
  parameter Real capFunT[nCapFunT] "Biquadratic coefficients for capFunT";
  parameter Real EIRFunT[nEIRFunT] "Biquadratic coefficients for EIRFunT";
  parameter Real EIRFunPLR[nEIRFunPLR] "Coefficients for EIRFunPLR";
  parameter Modelica.SIunits.Temperature TEvaLvgMin 
    "Minimum value for leaving evaporator temperature";
  parameter Modelica.SIunits.Temperature TEvaLvgMax 
    "Maximum value for leaving evaporator temperature";

end Chiller;