Buildings.Utilities.Psychrometrics.BaseClasses

Package with base classes for Buildings.Utilities.Psychrometrics

Information


This package contains base classes that are used to construct the models in Buildings.Utilities.Psychrometrics.

Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).

Package Content

NameDescription
Buildings.Utilities.Psychrometrics.BaseClasses.HumidityRatioVaporPressure HumidityRatioVaporPressure Humidity ratio for given water vapor pressure


Buildings.Utilities.Psychrometrics.BaseClasses.HumidityRatioVaporPressure Buildings.Utilities.Psychrometrics.BaseClasses.HumidityRatioVaporPressure

Humidity ratio for given water vapor pressure

Buildings.Utilities.Psychrometrics.BaseClasses.HumidityRatioVaporPressure

Information


Partial Block to compute the relation between humidity ratio and water vapor partial pressure.

If use_p_in is false (default option), the p parameter is used as atmospheric pressure, and the p_in input connector is disabled; if use_p_in is true, then the p parameter is ignored, and the value provided by the input connector is used instead.

Extends from Modelica.Blocks.Interfaces.BlockIcon (Basic graphical layout of input/output block).

Parameters

TypeNameDefaultDescription
Booleanuse_p_intrueGet the pressure from the input connector
Pressurep101325Fixed value of pressure [Pa]

Connectors

TypeNameDescription
input RealInputp_inAtmospheric Pressure [Pa]

Modelica definition

partial block HumidityRatioVaporPressure 
  "Humidity ratio for given water vapor pressure"
  extends Modelica.Blocks.Interfaces.BlockIcon;
  parameter Boolean use_p_in = true "Get the pressure from the input connector";

  parameter Modelica.SIunits.Pressure p = 101325 "Fixed value of pressure";
  Modelica.Blocks.Interfaces.RealInput p_in(final quantity="Pressure",
                                         final unit="Pa",
                                         min = 0) if  use_p_in 
    "Atmospheric Pressure";

protected 
  Modelica.Blocks.Interfaces.RealInput p_in_internal 
    "Needed to connect to conditional connector";
equation 
  connect(p_in, p_in_internal);
  if not use_p_in then
    p_in_internal = p;
  end if;
end HumidityRatioVaporPressure;

Automatically generated Fri May 06 14:15:03 2011.