Buildings.Fluid.DXSystems.Cooling.AirSource.Examples.PerformanceCurves
Package with several performance curves
Information
This package contains performance curves for the coil heat transfer capacity and the EIR of air source DX cooling and heating coils that are used in the examples.
For performance data of specific air source DX cooling coils, see the packages Buildings.Fluid.DXSystems.Cooling.AirSource.Data.SingleSpeed and Buildings.Fluid.DXSystems.Cooling.AirSource.Data.DoubleSpeed.
The data are described in Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.DXCoil.
Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 Curve_I
|
DX cooling coil performance curve I |
| Curve_II
|
DX cooling coil performance curve II |
| Curve_III
|
DX cooling coil performance curve III |
Buildings.Fluid.DXSystems.Cooling.AirSource.Examples.PerformanceCurves.Curve_I
DX cooling coil performance 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.
Extends from Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.BaseClasses.PerformanceCurve (Data record for a performance curve).
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 fraction |
| 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
Buildings.Fluid.DXSystems.Cooling.AirSource.Examples.PerformanceCurves.Curve_II
DX cooling coil performance 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.
Extends from Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.BaseClasses.PerformanceCurve (Data record for a performance curve).
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 fraction |
| 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
Buildings.Fluid.DXSystems.Cooling.AirSource.Examples.PerformanceCurves.Curve_III
DX cooling coil performance 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.
Extends from Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.BaseClasses.PerformanceCurve (Data record for a performance curve).
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 fraction |
| 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 |