blockCoolingControl
Controller for the free cooling and the mechanical cooling
Extends from Modelica.Blocks.Icons.Block (Basic graphical layout of input/output block).
Information
This block computes a control signal for free cooling and for mechanical cooling.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Temperature | TRooCoo | 25 + 273.15 | Set point for mechanical cooling |
| Modelica.Units.SI.Temperature | TRooFre | 22 + 273.15 | Maximum temperature above which free cooling is enabled |
| Modelica.Units.SI.Temperature | TOutFre | 16 + 273.15 | Outside temperature above which free cooling is allowed |
| Modelica.Units.SI.TemperatureDifference | dT | 1 | Dead-band for free cooling |
| Real | Kp | 1 | Proportional band for mechanical cooling |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | TRoo | Room air temperature | |
| Modelica.Blocks.Interfaces.RealInput | TOut | Outside air temperature | |
| Modelica.Blocks.Interfaces.RealOutput | TSupCoo | Control signal for set point for leaving air temperature of cooling coil | |
| Modelica.Blocks.Interfaces.RealOutput | yF | Control signal for free cooling, 1 if free cooling should be provided | |
| Modelica.Blocks.Interfaces.RealOutput | yHex | Control signal for heat recovery damper |
Revisions
-
February 27, 2015, by Michael Wetter:
Changed controller to output setpoint for supply air temperature for cooling coil.