.TransiEnt.Storage.Gas.UndergroundGasStoragePressureLoss_L2

Information

1. Purpose of model

This model represents an underground compressed gas storage without detailed heat transfer but with heat ports for the heat flows out of/into the pipes/storage.

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

This model uses the models GasStorage_constXi_L2 or GasStorage_varXi_L2 and can be used for real gases with constant or variable compositions. The pipes through which the gas is flowing into/out of the storage are modeled using the pipe models PipeFlow_L4_Simple_constXi or PipeFlow_L4_Simple_varXi.

3. Limits of validity

The model is only valid for negligible pressure losses and negligible changes of the heat transfer coefficient (other heat transfer models can be used). For high pressures there are errors due to errors in the gas models. There are errors at flow reversal (discharge to charge or vice versa) because here two pipes are used where usually only one pipe is used in reality.

4. Interfaces

gasPortIn: Real gas output

gasPortOut: Real gas input

heat: heat port for the heat flow into/out of the storage

p_storage: signal output of the gas pressure

5. Nomenclature

(no elements)

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

Model taken from Tietze and Stolten [1].

9. References

[1] Tietze, Vanessa, and Detlef Stolten. Comparison of hydrogen and methane storage by means of a thermodynamic analysis. International Journal of Hydrogen Energy 40.35 (2015): 11530-11537.

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) in Oct 2016