I am planning to simulate gas turbine combustion chamber as a reactor. But reactor modelling is suggesting various theories for different thermodynamic conditions such as constant volume reactor, constant pressure reactor, well stirred reactor and plugged flow reactor. how to couple them to simulate gas turbine combustion chamber?
Hi
According to an old experience of Chemkin, I suggest you take first a well stired reactor (WSR) with the volume of the combustion chamber. You fix the pressure to an observed value in gas turbine as it depends of parameters not in WSR. Your WSR can be adiabatic.
After in the exhaust, as reactions are slower you can add a plug flow with heat exchange.
Building a cluster of reactors in Chemkin Pro is a good idea. You can modify the inbuilt sample for simulating combustors in Chemkin Pro.
In a combustion chamber, fuel & oxygen will react in a small volume and hot product gases from the chamber will drive the turbine. Reaction, most likely, to be mass transfer controlled and I feel CFD simulation of combustion chamber would be a good idea, wherein you can also incorporate reaction kinetics, if you have.
To complete Manish Shah's answer.
It's true that CFD simulation is a good method (may be the more appropriate) but it can be complicate.
Chemkin is also complicate if you don't have the software. If you have the software Chemkin or another like Comsol you can simulate with the GRIMECH data for gaz combustion.
The Borghi diagram is interesting to see the theorical situation in combustion for a perfectly stirred reactor.
There are many papers dealing with combustion and perfectly stirred reactors.
CFD : the kinetics are rather simple but you can obtain the temperature and velocity repartition in 3D
Perfectly stirred : you can simulate very complex kinetics.
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