The model takes as input signals the temperature and water vapor concentration and, optionally, a bulk mass flow rate into or out of the system boundary. The state of the fluid that flows out of this model will be at this temperature and water vapor concentration. The output of this model are the sensible and latent heat exchanged across the system boundary.
When used with the BCVTB, a building simulation program such as EnergyPlus may compute the room air temperatures and room air humidity rate, which is then used as an input to this model. The sensible and latent heat flow rates may be sent to EnergyPlus to couple the air-conditioning system to the energy balance of the building model.
Note: The EnergyPlus building simulation program outputs the
absolute humidity ratio in units of [kg/kg dry air]. Since
Modelica.Media uses [kg/kg total mass of air], this quantity
needs to be converted. The conversion can be done with the model
Buildings.Utilities.Psychrometrics.ToTotalAir.
Buildings.Utilities.Psychrometrics.X_pTphi as
this model no longer allows to replace the medium.