Effect of ethane concentration on burning velocity and flame stability of nature gas and coalbed gas

Wei Wang, Hai Yan Miao, Da Min Qi, Zuo Hua Huang, De Ming Jiang

Research output: Contribution to journalArticle

Abstract

In this paper, combustion characteristics of premixed methane-ethane-air mixtures with various ethane concentration at different equivalence ratio under elevated pressure and temperature (p=0.75 MPa, T=450 K) will be reported. The effect of ethane concentration on burning speed and flame stability will be discussed. Experimental results show that with the increase of ethane concentration the unstretched burning velocity is increased. The Markstein length is increased as well, which shows that the flame stability is enhanced. Within the range of this study, unstretched flame speed and unstretched burning velocity are increased until reaching the peak value and then reduced with the increase of equivalence ratio. The maximum value is obtained near the stoichiometric ratio.

Original languageEnglish
Pages (from-to)509-512
Number of pages4
JournalKung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume32
Issue number3
Publication statusPublished - Mar 2011
Externally publishedYes

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