.TransiEnt.Components.Gas.Reactor.Controller.ControllerH2OForReformer_StoCbeforeSMR

Information

1. Purpose of model

This is a controller to control the steam mass flow rate for a steam methane reformer to ensure a given molar steam to methane ratio at the inlet of the steam methane reformer.

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

The composition and mass flow rate of the feed are measured and the necessary steam mass flow rate is calculated depending on the expected reactions in the prereformer.

3. Limits of validity

The validity is limited because the composition is measured ideally and continuously which is not possible in reality.

4. Interfaces

m_flow_feed: input for the feed mass flow rate in [kg/s]

xi: input for the mass fractions of the feed [kg/kg]

m_flow_steam: output for the steam mass flow rate (positive sign) [kg/s]

5. Nomenclature

(no remarks)

6. Governing Equations

The steam mass flow rate is calculated under consideration of the steam that will be consumed by decomposing C2H6, C3H8 and C4H10 in the prereformer and the desired steam to methane molar ratio.

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 Apr 05 2016