Equivalence ratio CHEMKIN

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  • Last Post 12 June 2018
Karna posted this 14 March 2018

Hello:

In the manual, the given example is for simple propane air combustion and for that stoichiometric equation is easy to build. But what if we have a complicated combustion reaction with multiple fuels and multiple oxidizers as I wrote below and you don't know stochiometric reaction for that?

 

a*C2H2 + b*H2 + c*(O2+3.76N2) + d*CO2 + e*N2 -----> products

Where, a=0.3124, b=1.6776, c=2.1958, d=0.3702, e=1.483792

What will be an equivelence ratio for the above equation? 

 

Basically, to find out equivalence ratio you need numerator and denominator. The numerator is related to fuel/oxidizer value at specific state which is easy to figure out in my question. However, denominator part is related to a stoichiometric condition, which I don't know in my case since this is not a simple prepare air combustion as stated in the manual. How can chemkin be useful in this case to find out equivalence ratio? 

 

In other words, how can I get the equivelence ratio from chemkin when I don't know the stoichiometric equation (denominator part of the equivalence ratio)?  

 

Thanks,

Karna

sridharsahoo366@iitkgp.ac.in posted this 12 June 2018

Hey are you using ansys Forte for simulating ic engine problems ?

please mail me if you do sridharsahoo366@iitkgp.ac.in

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