recordGeneric
Generic data record for SingleSpeed DXCoils
Extends from Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.DXCoil (Performance record for a DX Cooling DXCoil with one or multiple stages).
Information
This record is used as a template for performance data for SingleSpeed DX cooling coils in Buildings.Fluid.DXSystems.Cooling.AirSource.SingleSpeed.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | sinStaOpe (from DXCoil) | nSta == 1 | The data record is used for single speed operation |
| Integer | nSta (from DXCoil) | Number of stages | |
| Real | minSpeRat (from DXCoil) | 0.2 | Minimum speed ratio |
| Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.BaseClasses.Stage[nSta] | sta (from DXCoil) | Data record for coil performance at each stage | |
| Buildings.Fluid.DXSystems.Heating.BaseClasses.Types.DefrostOperation | defOpe (from DXCoil) | Buildings.Fluid.DXSystems.Heating.BaseClasses.Types.DefrostOperation.resistive | Defrost operation type |
| Buildings.Fluid.DXSystems.Heating.BaseClasses.Types.DefrostTimeMethods | defTri (from DXCoil) | Buildings.Fluid.DXSystems.Heating.BaseClasses.Types.DefrostTimeMethods.timed | Type of method used to calculate defrost time fraction |
| Real | tDefRun (from DXCoil) | 0 | Time period fraction for which defrost cycle is run |
| Modelica.Units.SI.ThermodynamicTemperature | TDefLim (from DXCoil) | 273.65 | Maximum temperature at which defrost operation is activated |
| Modelica.Units.SI.HeatFlowRate | QDefResCap (from DXCoil) | 0 | Heating capacity of resistive defrost element |
| Modelica.Units.SI.HeatFlowRate | QCraCap (from DXCoil) | 0 | Crankcase heater capacity |
| Real[6] | defEIRFunT (from DXCoil) | fill(0, 6) | Biquadratic coefficients for defrost capacity function of temperature |
| Real[:] | PLFraFunPLR (from DXCoil) | {1} | Quadratic/cubic equation for part load fraction as a function of part-load ratio |
| Minimum conditions | |||
| Modelica.Units.SI.MassFlowRate | m_flow_small (from DXCoil) | 0.0001*sta[nSta].nomVal.m_flow_nominal | Small mass flow rate for regularization near zero flow |
Revisions
-
April 4, 2023, by Xing Lu and Karthik Devaprasad:
Updated class name being extended from
Generic.DXCoilto Buildings.Fluid.DXSystems.Cooling.AirSource.Data.Generic.DXCoil.
Updated information section. -
November 20, 2012 by Thierry S. Nouidui:
First implementation.