modelAntiFreeze

Model to prevent source from freezing

Extends from BaseClasses.PartialSafetyControl.

Information

This models takes the minimum of the two temperatures evaporator outlet and condenser inlet. If this minimal temperature falls below the given lower boundary, the hystereses will trigger an error and cause the device to switch off.

Assumptions

Assuming that the outlet temperature of an evaporator is always lower than the inlet temperature(for the condenser vice versa).

Parameters

TypeNameDefaultDescription
Booleanuse_antFretrueTrue if anti freeze control is part of safety control
Modelica.Units.SI.ThermodynamicTemperatureTAntFre276.15Limit temperature for anti freeze control
RealdTHys2Hysteresis interval width

Components

TypeNameDefaultDescription
Modelica.Blocks.Sources.BooleanConstantbooConAntFre
Modelica.Blocks.Logical.Hysteresishysteresis
Modelica.Blocks.Math.Minmin

Revisions

  • November 26, 2018  by Fabian Wüllhorst:
    First implementation (see issue #577)