modelHeatExchangerWithInputEffectiveness
Extends from Buildings.Fluid.HeatExchangers.BaseClasses.PartialEffectiveness.
Information
This block is identical to Buildings.Fluid.MassExchangers.ConstantEffectiveness, except that the sensible and latent heat exchanger effectiveness are inputs rather than parameters.
This model transfers heat and moisture in the amount of
QSen = epsSen * Q_max, m = epsLat * mWat_max,
where epsSen and epsLat are the input effectiveness
for the sensible and latent heat transfer, respectively;
Q_max is the maximum sensible heat that can be transferred,
m is the moisture that is transferred, and
mWat_max is the maximum moisture that can be transferred.
This model can only be used with medium models that define the integer constant
Water which needs to be equal to the index of the water mass fraction
in the species vector.
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Controls.OBC.CDL.Interfaces.RealInput | epsSen | Sensible heat exchanger effectiveness | |
| Buildings.Controls.OBC.CDL.Interfaces.RealInput | epsLat | Latent heat exchanger effectiveness | |
| Modelica.Units.SI.HeatFlowRate | QLat_flow | Latent heat exchange from medium 2 to medium 1 | |
| Medium1.MassFraction | X_w_in1 | Inlet water mass fraction of medium 1 | |
| Medium2.MassFraction | X_w_in2 | Inlet water mass fraction of medium 2 | |
| Modelica.Units.SI.MassFlowRate | mWat_flow | Water flow rate from medium 2 to medium 1 | |
| Modelica.Units.SI.MassFlowRate | mMax_flow | Maximum water flow rate from medium 2 to medium 1 |
Revisions
-
September 29, 2023, by Sen Huang:
First implementation based on Buildings.Fluid.MassExchangers.ConstantEffectiveness.