modelCWcov

Condensation at the dome
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Extends from BondLib.Interfaces.TwoPort.

Information

This model computes the condensation at the dome. It uses the generic condensation model together with an internal modulation computing the conductance of condensation.

An if statement is used to check whether the current humidity is above that of the dew point. If this is not the case, no condensation takes place. 

Parameters:

  ac:      Cover area of Biosphere (default value = 5667.0 m2)

  hai:     Convection coefficient equation intercept (default value = 39.6 kJ/(h.m2.K))

  pao:     Atmospheric pressure (default value = 87.848 kPa)

References:

  1. American Society of Heating, Refrigerating and Air-Conditioning Engineers (1997), ASHRAE Handbook of Fundamentals.
  2. Air Psychrometrics

Parameters

TypeNameDefaultDescription
Reallambda2501Latent heat of vaporization
Modelica.SIunits.Areaac5667.0Cover area of Biosphere
Realhai39.6Convection coefficient equation intercept
Realpao87.848Atmospheric pressure

Components

TypeNameDefaultDescription
RealcaSpecific heat capacity of moist air
RealG0Specific boundary layer conductance of condensation on cover
RealGBoundary layer conductance of condensation
RealG2Bondgraphic conductance
RealsvpSaturation vapor pressure of cover
RealhumHumidity ratio of cover at saturation
mGScomGSco1