Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves

Information

This package contains performance curves for the cooling capacity and the EIR of DX cooling coils that are used in the examples.

For performance data of specific DX cooling coils, see the packages Buildings.Fluid.HeatExchangers.DXCoils.Data.SingleSpeed and Buildings.Fluid.HeatExchangers.DXCoils.Data.DoubleSpeed.

The data are described in Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.DXCoil.

Package Content

Name	Description
Curve_I	Curve_I
Curve_II	Curve_II
Curve_III	Curve_III

Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves.Curve_I

Information

This record declares performance curves for the cooling capacity and the EIR. It has been obtained from the EnergyPlus 7.1 example file >AirflowNetwork_MultiZone_House.idf>.

Parameters

Type	Name	Default	Description
Performance curves
Real	capFunT[6]	{0.942587793,0.009543347,0.0...	Biquadratic coefficients for cooling capacity function of temperature
Real	capFunFF[:]	{0.8,0.2,0,0}	Polynomial coefficients for cooling capacity function of flow fration
Real	EIRFunT[6]	{0.342414409,0.034885008,-0....	Biquadratic coefficients for EIR function of temperature
Real	EIRFunFF[:]	{1.1552,-0.1808,0.0256,0}	Polynomial coefficients for EIR function of flow fration
Minimum and maximum values
Temperature	TConInMin	291.15	Minimum condenser inlet temperature for cooling capacity function [K]
Temperature	TConInMax	319.26111	Maximum condenser inlet temperature for cooling capacity function [K]
Temperature	TEvaInMin	285.92778	Minimum evaporator inlet temperature for cooling capacity function [K]
Temperature	TEvaInMax	297.03889	Maximum evaporator inlet temperature for cooling capacity function [K]
Real	ffMin	0.6	Minimum flow fraction for which performance data are valid
Real	ffMax	1.8	Maximum flow fraction for which performance data are valid

Modelica definition

record Curve_I "Curve_I"
  extends Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.PerformanceCurve
    (
    each capFunT={0.942587793,0.009543347,0.000683770,-0.011042676,0.000005249,
        -0.000009720},
    each capFunFF={0.8,0.2,0,0},
    each EIRFunT={0.342414409,0.034885008,-0.000623700,0.004977216,0.000437951,
        -0.000728028},
    each EIRFunFF={1.1552,-0.1808,0.0256,0},
    TConInMin=291.15,
    TConInMax = 319.26111,
    TEvaInMin= 285.92778,
    TEvaInMax= 297.03889,
    ffMin=0.6,
    ffMax=1.8);
end Curve_I;

Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves.Curve_II

Information

This record declares performance curves for the cooling capacity and the EIR. It has been obtained from the EnergyPlus 7.1 example file >DXCoilSystemAuto.idf>.

Parameters

Type	Name	Default	Description
Performance curves
Real	capFunT[6]	{0.766956,0.0107756,-0.00004...	Biquadratic coefficients for cooling capacity function of temperature
Real	capFunFF[:]	{0.8,0.2,0,0}	Polynomial coefficients for cooling capacity function of flow fration
Real	EIRFunT[6]	{0.297145,0.0430933,-0.00074...	Biquadratic coefficients for EIR function of temperature
Real	EIRFunFF[:]	{1.1552,-0.1808,0.0256,0}	Polynomial coefficients for EIR function of flow fration
Minimum and maximum values
Temperature	TConInMin	291.15	Minimum condenser inlet temperature for cooling capacity function [K]
Temperature	TConInMax	319.26111	Maximum condenser inlet temperature for cooling capacity function [K]
Temperature	TEvaInMin	285.92778	Minimum evaporator inlet temperature for cooling capacity function [K]
Temperature	TEvaInMax	297.03889	Maximum evaporator inlet temperature for cooling capacity function [K]
Real	ffMin	0.5	Minimum flow fraction for which performance data are valid
Real	ffMax	1.5	Maximum flow fraction for which performance data are valid

Modelica definition

record Curve_II "Curve_II"
  extends Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.PerformanceCurve
    (
    each capFunT={0.766956,0.0107756,-0.0000414703,0.00134961,-0.000261144,
        0.000457488},
    each capFunFF={0.8,0.2,0,0},
    each EIRFunT={0.297145,0.0430933,-0.000748766,0.00597727,0.000482112,-0.000956448},
    each EIRFunFF={1.1552,-0.1808,0.0256,0},
    TConInMin=291.15,
    TConInMax = 319.26111,
    TEvaInMin= 285.92778,
    TEvaInMax= 297.03889,
    ffMin=0.5,
    ffMax=1.5);

end Curve_II;

Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves.Curve_III

Information

This record declares performance curves for the cooling capacity and the EIR. It has been obtained from the EnergyPlus 7.1 example file >5ZoneAutoDXVAV.idf>.

Parameters

Type	Name	Default	Description
Performance curves
Real	capFunT[6]	{0.476428,0.0401147000,0.000...	Biquadratic coefficients for cooling capacity function of temperature
Real	capFunFF[:]	{0.47278589,1.2433415,-1.038...	Polynomial coefficients for cooling capacity function of flow fration
Real	EIRFunT[6]	{0.632475,-0.0121321000,0.00...	Biquadratic coefficients for EIR function of temperature
Real	EIRFunFF[:]	{1.0079484,0.34544129,-0.692...	Polynomial coefficients for EIR function of flow fration
Minimum and maximum values
Temperature	TConInMin	297.03889	Minimum condenser inlet temperature for cooling capacity function [K]
Temperature	TConInMax	319.26111	Maximum condenser inlet temperature for cooling capacity function [K]
Temperature	TEvaInMin	285.92778	Minimum evaporator inlet temperature for cooling capacity function [K]
Temperature	TEvaInMax	297.03889	Maximum evaporator inlet temperature for cooling capacity function [K]
Real	ffMin	0.5	Minimum flow fraction for which performance data are valid
Real	ffMax	1.5	Maximum flow fraction for which performance data are valid

Modelica definition

record Curve_III "Curve_III"
  extends Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.PerformanceCurve
    (
    each capFunT={0.476428,0.0401147000,0.0002264110,-0.0008271360,-0.0000073224,
        -0.0004462780},
    each capFunFF={0.47278589,1.2433415,-1.0387055,0.32257813},
    each EIRFunT={0.632475,-0.0121321000,0.0005077730,0.0155377000,0.0002728400,
        -0.0006792010},
    each EIRFunFF={1.0079484,0.34544129,-0.6922891, 0.33889943},
    TConInMin = 297.03889,
    TConInMax = 319.26111,
    TEvaInMin = 285.92778,
    TEvaInMax = 297.03889,
    ffMin = 0.5,
    ffMax = 1.5);
end Curve_III;