Package with base classes for performance data
This package contains performance curves for the cooling capacity and the EIR of DX cooling coils. 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.BaseClasses.DXCoil.
Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).
| Name | Description |
|---|---|
 Stage
|
Generic data record for a stage of a DX coil |
| NominalValues
|
Data record of nominal values |
| PerformanceCurve
|
Data record for a performance curve |
 nominalValuesToString
|
Converts the nominal values to a string representation |
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.Stage
Generic data record for a stage of a DX coil
This is the base record for DX cooling coil model at a compressor speed. See the information section of Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.DXCoil for a description of the data.
Extends from Modelica.Icons.Record (Icon for records).
| Type | Name | Default | Description |
|---|---|---|---|
| AngularVelocity | spe | Rotational speed [rad/s] | |
| NominalValues | nomVal | Nominal values | |
| PerformanceCurve | perCur | Performance curves for this stage |
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.NominalValuesData record of nominal values
This is the base record of nominal values for DX cooling coil models.
See the information section of Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.DXCoil for a description of the data.
Extends from Modelica.Icons.Record (Icon for records).
| Type | Name | Default | Description |
|---|---|---|---|
| Nominal condition | |||
| HeatFlowRate | Q_flow_nominal | Nominal cooling capacity (negative number) [W] | |
| Real | COP_nominal | Nominal coefficient of performance | |
| Real | SHR_nominal | Nominal sensible heat ratio | |
| MassFlowRate | m_flow_nominal | Nominal air mass flow rate [kg/s] | |
| Temperature | TEvaIn_nominal | 273.15 + 19.4 | Evaporator entering air dry-bulb temperature at rating condition [K] |
| Temperature | TConIn_nominal | 308.15 | Condenser entering air temperature at rating condition (wet bulb for evaporative cooled coils, dry bulb otherwise) [K] |
| Pressure | p_nominal | 101325 | Atmospheric pressure [Pa] |
| Nominal | |||
| Real | phiIn_nominal | 0.5 | Relative humidity of entering air at nominal condition |
| Re-evaporation data | |||
| Time | tWet | 1400 | Time until moisture drips from coil when a dry coil is switched on [s] |
| Real | gamma | 1.5 | Ratio of evaporation heat transfer divided by latent heat transfer at nominal conditions |
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.PerformanceCurveData record for a performance curve
This record declares the data used to specify performance curves for DX coils.
See the information section of Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.DXCoil for a description of the data.
Extends from Modelica.Icons.Record (Icon for records).
| Type | Name | Default | Description |
|---|---|---|---|
| Performance curves | |||
| Real | capFunT[6] | Biquadratic coefficients for cooling capacity function of temperature | |
| Real | capFunFF[:] | Polynomial coefficients for cooling capacity function of flow fration | |
| Real | EIRFunT[6] | Biquadratic coefficients for EIR function of temperature | |
| Real | EIRFunFF[:] | Polynomial coefficients for EIR function of flow fration | |
| Minimum and maximum values | |||
| Temperature | TConInMin | Minimum condenser inlet temperature for cooling capacity function [K] | |
| Temperature | TConInMax | Maximum condenser inlet temperature for cooling capacity function [K] | |
| Temperature | TEvaInMin | Minimum evaporator inlet temperature for cooling capacity function [K] | |
| Temperature | TEvaInMax | Maximum evaporator inlet temperature for cooling capacity function [K] | |
| Real | ffMin | Minimum flow fraction for which performance data are valid | |
| Real | ffMax | Maximum flow fraction for which performance data are valid | |
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.nominalValuesToStringConverts the nominal values to a string representation
Returns a string representation of the nominal values.
Extends from Modelica.Icons.Function (Icon for functions).
| Type | Name | Default | Description |
|---|---|---|---|
| NominalValues | nomVal | Nominal values |
| Type | Name | Description |
|---|---|---|
| String | s | A string representation of the nominal values |