.Buildings.Fluid.Interfaces.PrescribedOutlet

Information

This model sets the temperature or the water vapor mass fraction of the medium that leaves port_a to the value given by the input TSet or X_wSet, subject to optional limitations on the capacity for heating and cooling, or limitations on the humidification or dehumidification moisture mass flow rate. Also, optionally the model allows to take into account first order dynamics.

If the parameters energyDynamics or massDynamics are not equal to Modelica.Fluid.Types.Dynamics.SteadyState, the component models the dynamic response using a first order differential equation. The time constant of the component is equal to the parameter tau. This time constant is adjusted based on the mass flow rate using

τeff = τ |ṁ| ⁄ ṁnom

where τeff is the effective time constant for the given mass flow rate and τ is the time constant at the nominal mass flow rate nom. This type of dynamics is equal to the dynamics that a completely mixed control volume would have.

This model has no pressure drop. See Buildings.Fluid.HeatExchangers.PrescribedOutlet for a model that instantiates this model and that has a pressure drop.

In case of reverse flow, the fluid that leaves port_a has the same properties as the fluid that enters port_b.

Revisions


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