modelCWpond

Evaporation of the pond
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Extends from BondLib.Interfaces.TwoPort (Partial model invoking two bondgraphic connectors).

Information

This model computes the evaporation of the pond. It uses the generic evaporation model together with an internal modulation computing the conductance of evaporation. 

Parameters:

  ag:      Ground area of Biosphere (default value = 2368.9 m2)

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

  apix:    Portion of Biosphere covered by pond (default value = 0.4)

  lambda:  Latent heat of vaporization (default value = 2501 kJ/kg_water)

  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
Modelica.SIunits.Areaag2368.9Ground area of Biosphere
Realhai39.6Convection coefficient equation intercept
Realapix0.4Percentage of Biosphere covered by pond
Reallambda2501.0Latent heat of vaporization
Realpao87.848Atmospheric pressure

Connectors

TypeNameDefaultDescription
BondLib.Interfaces.BondConBondCon1 (from TwoPort)Left bond graph connector
BondLib.Interfaces.BondConBondCon2 (from TwoPort)Right bond graph connector

Components

TypeNameDefaultDescription
Reale1 (from TwoPort)Bondgraphic primary effort
Realf1 (from TwoPort)Bondgraphic primary flow
Reale2 (from TwoPort)Bondgraphic secondary effort
Realf2 (from TwoPort)Bondgraphic secondary flow
RealcaSpecific heat capacity of moist air
RealG0Specific boundary layer conductance due to evaporation
RealGBoundary layer conductance of evaporation
RealG2Bondgraphic conductance
mGSevmGSev1