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Kinetic study of methyl oleate oxidation using a semi-detailed mechanism

C.V. Naik ; Valeri Golovitchev (Institutionen för tillämpad mekanik, Förbränning) ; E. Meeks ; Junfeng Yang (Institutionen för tillämpad mekanik, Förbränning)
Proceedings of the 8th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2012, Fukuoka, Japan, 23-26 July 2012 p. 299-304. (2012)
[Konferensbidrag, refereegranskat]

Methyl oleate is a long chain methyl ester and a major constituent of rapeseed-oil derived biodiesel. A detailed mechanism for its combustion was recently developed by Westbrook and co-workers. This master mechanism involves 5037 species and 19990 reactions, which makes it too complex for direct use in computational fluid dynamics. In the present work, various mechanism reduction methods were used to derive a skeletal biodiesel combustion mechanism that retains the key properties of the master mechanism (auto-ignition behavior, fuel conversion rate) and generates similar concentration profiles for intermediate species. This skeletal mechanism containing only 442 species was applied to study the methyl oleate oxidation in an opposed-flow diffusion flame and the combustion phasing under the diesel engine conditions. The skeletal mechanism was proved to be the efficient and accurate representation of actual biodiesel combustion and emissions formation.

Nyckelord: Detailed chemistry, Methyl oleate, Modeling, Oxidation



Denna post skapades 2013-05-30. Senast ändrad 2015-05-05.
CPL Pubid: 177663

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Förbränning

Ämnesområden

Maskinteknik

Chalmers infrastruktur