.TransiEnt.Components.Gas.Compressor.ValveAndCompressor_dp

Information

1. Purpose of model

This model combines a valve with a compressor delivering a certain pressure difference. Depending on the sign of the pressure difference the compressor or the valve is used. The type of compressor can be chosen.

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

When the pressure difference changes sign, the change of the device is executed without any time delay or time dependent behaviour.

3. Limits of validity

Only valid for negligible time delays and time dependencies in turn-on and shut-down behaviour of the components.

4. Interfaces

gasPortIn: real gas inlet

gasPortOut: real gas outlet

dp_desired: input for desired pressure difference in [Pa]

5. Nomenclature

(no elements)

6. Governing Equations

(no remarks)

7. Remarks for Usage

Chattering can occur if the pressure difference is around zero.

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) on Feb 10 2017

Modified by Lisa Andresen (andresen@tuhh.de) on Feb 16 2017 (changed output from m_flowDesired to dp_desired)

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

Contents

Name	Description
Compressor	Compressor model, change eta_is for normal compressor