recordNominalValues
Data record of nominal values
Extends from Modelica.Icons.Record (Icon for records).
Information
This is the base record of nominal values for air source DX cooling coil models.
See the information section of Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.DXCoil for a description of the data.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Nominal condition | |||
| Modelica.Units.SI.HeatFlowRate | Q_flow_nominal | Nominal capacity (negative number) | |
| Real | COP_nominal | Nominal coefficient of performance | |
| Real | SHR_nominal | Nominal sensible heat ratio | |
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | Nominal air mass flow rate at evaporators | |
| General › Nominal condition | |||
| Modelica.Units.SI.Temperature | TEvaIn_nominal | 292.55 | Evaporator entering air wet-bulb temperature at rating condition |
| Modelica.Units.SI.Temperature | TConIn_nominal | 308.15 | Condenser entering temperature at rating condition (wet bulb for evaporative cooled coils, dry bulb for air cooled) |
| Modelica.Units.SI.Pressure | p_nominal | 101325 | Atmospheric pressure |
| General › Nominal | |||
| Real | phiIn_nominal | 0.5 | Relative humidity of entering air at nominal condition |
| General › Re-evaporation data | |||
| Modelica.Units.SI.Time | tWet | 1400 | Time until moisture drips from coil when a dry coil is switched on |
| Real | gamma | 1.5 | Ratio of evaporation heat transfer divided by latent heat transfer at nominal conditions |
Revisions
-
March 19, 2023 by Xing Lu and Karthik Devaprasad:
Added Boolean conditional for cooling mode operation. Added conditional enable to parameters for SHR_nominal, tWet and gamma. -
September 25, 2012 by Michael Wetter:
Revised documentation. -
September 4, 2012 by Michael Wetter:
Added parameters for evaporation model. -
August 13, 2012 by Kaustubh Phalak:
First implementation.