.TransiEnt.Components.Gas.Combustion.Burner_L1

Information

1. Purpose of model

This is a simple model of a combustion chamber.

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

The combustion is assumed to be ideal so all the combustable components of the entering gas mixture are combusted 100%. Also a heat transfer is considered, a desired heat flow can be taken out of the system.

3. Limits of validity

This model is only valid if the share of uncombusted components is negligible. Also, it has to be ensured that there is enough oxygen for a complete combustion and the model only works with the real gas medium NG7_SG_O2.

4. Interfaces

gasPortIn: inlet of the mixture of fuel and air/oxygen

gasPortOut: outlet of the exhaust gas

heat: heat port

5. Nomenclature

: Mass fraction, molar mass, lower heating value, heat flow out of the combustion chamber, specific enthalpy, mass flow

6. Governing Equations

The outflowing mass fractions are determined using the stochiometry of the combustion reactions:

The lower heating value of the mixture is calculated using the LHV of the components and with this and the outflowing heat flow, the outflowing specific enthalpy is calculated:

7. Remarks for Usage

It has to be ensured that there is enough oxygen for a complete combustion. Also, the outlet temperature has to be below the limit of the TILMedia fluid models.

8. Validation

Tested in the check model "TestBurner_L1"

9. References

(no remarks)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) on Tue Apr 05 2016