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Citation: WANG Bin-Bin, JIANG Yong, QIU Rong. Application of CSP to the Reduction of a Complex Combustion Reaction System[J]. Acta Physico-Chimica Sinica, ;2008, 24(12): 2221-2228. doi: 10.3866/PKU.WHXB20081213 shu

Application of CSP to the Reduction of a Complex Combustion Reaction System

1.
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, P. R. China

Received Date: 16 June 2008
Available Online: 22 October 2008

A numerical study based on computational singular perturbation (CSP) in a methane/air premixed combustion system was undertaken. This method splits reaction spaces to eliminate stiffness, identifies quasi-steady-state (QSS) species by analyzing CSP pointer locally and integrally as well as simplifying algebraic relations and differential equations by using two CSP indexes. Finally, a 15-step globally reduced mechanism was constructed based on CSP analyses in a premixed methane/air combustion system. The 15-step reduced mechanism was tested and verified using Sandia’s PREMIX. Advantages of the CSP method are discussed. A new method for analyzing the reduced mechanismmay be used for more complex combustion systems.
- Computational singular perturbation,
- Premixed combustion,
- Quasi-steady-state assumption
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