.TransiEnt.Components.Gas.VolumesValvesFittings.Valves.ThreeWayValveRealGas_L1_simple

Information

1. Purpose of model

This model represents a three way valve for real gas flows. It works also for zero flow. It is a modified version of the model ClaRa.Components.VolumesValvesFittings.Valves.ThreeWayValve_L1_simple from ClaRa version 1.3.0. The model is documented there and here only the changes are described.

2. Level of detail, physical effects considered, and physical insight

The two-phase region is deactivated and the valve works for zero flow.

3. Limits of validity

Only valid if changes in density and the two-phase region of the fluid can be neglected.

4. Interfaces

splitRatio_external: mass fraction in kg/kg

gasPortIn: inlet for real gas

gasPortOut1: outlet for real gas

gasPortOut2: outlet for real gas

eye1

eye2

5. Nomenclature

(no elements)

6. Governing Equations

The mass flow calculation for outlet 1 (eps is the smallest possible number in Modelica) and the composition calculation at the inlet ensure that there is no division by zero for zero mass flow at the inlet.

7. Remarks for Usage

(no remarks)

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) on Tue Sep 20 2016

Model revised by Carsten Bode (c.bode@tuhh.de) in Apr 2018 (updated to ClaRa 1.3.0)