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usker July 8, 2007 20:29

diesel spray combustion equivalence ratio
 
Hello guys, Could you please suggest how to obtain equivalence ratio for diesel spray and combustion. Diesel fuel is sprayed into constant volume chamber with 900K temperature and high pressure air. I am calculating transient. Equivalence ratio is stoichiometric air-fuel ratio devided by actual air-fuel ratio. How to get equivalence ratio value over time. As I know it is possible to insert a formula and link it to scalars, then I just insert the stoichiometric air-fuel ratio value and actual air-fuel ratio, but how to define air for actual air-fuel ratio, because if I link it to scalars, in the output the program only gives oxygen and nitrogen, but how to define air?

Thanks a lot

Andrea July 23, 2007 17:59

Re: diesel spray combustion equivalence ratio
 
Hi, I don't remember very well but if I'm right you've got scalars O2 and N2 defined in terms of mass [g or kg]...so if you want do define the air for your formula you need to express air in term of mass concentration of O2 and N2...is it right? Then it's just something like m_air=0.23*m_O2+0.77*m_N2

usker July 24, 2007 00:06

Re: diesel spray combustion equivalence ratio
 
Thank you very much, Andrea.

Arivumani August 9, 2007 02:16

Re: Automobile Engineering
 
i want to all the details for automobile engineering notes and line diagrams....

Deepika Garg September 6, 2007 01:42

i am doing diploma in mechanical engg
 
I Want all the notes of automobile engg. & diagram diploma level engg.plz reply fast.

Thanks& Regards Deepika Garg

sunil September 26, 2007 04:31

Re: i am doing diploma in mechanical engg
 
i am doing diploma in mechanical engg (evening) in bangalore and i request you please give me root for 1st sem notes of applied science.

muthazhagan October 25, 2007 03:57

Re: Automobile Engineering
 
i want to know about the course contents in automobile engineering subject.

amol sawant November 2, 2007 15:37

Re: Automobile Engineering
 
i wanna all nots of for all sub of 3rd year yearly pattern course please help me

pradip maity December 5, 2007 07:16

Re: i am doing diploma in mechanical engg
 
i am doing diploma in mechanical engg. on distance.

SHARATH.R December 5, 2007 23:20

Re: i completed diploma in mechanical engg
 
Hai friends

j tarun December 25, 2007 13:44

diploma in mechanical engg
 
d0nt think tath it was hard if u come after 10th then it will creat some problem but u will over come come by this .it has only the basic of 10th & 12th thats all if u further doubts then ask me...........

kia January 6, 2008 01:08

Re: i completed diploma in mechanical engg
 
wish u all the best for your higher studies

Manjinder Singh March 1, 2008 07:09

Re: diploma in mechanical engg
 
i am doing diploma in machanical enginer.tool and degsin


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