Measurement of laminar burning velocity of dimethyl ether-air premixed mixtures

Zuohua Huang, Qian Wang, Jinrong Yu, Yong Zhang, Ke Zeng, Haiyan Miao, Deming Jiang

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

Measurement of laminar burning velocity of dimethyl ether-air mixtures was taken under different initial pressures and equivalence ratios using a constant volume bomb and high-speed schlieren photography. The stretched laminar burning velocity increases with the increase of stretch rate. At equivalence ratio of 1.0, low initial pressure gives high stretched flame speed. At initial pressure less than 0.1 MPa, the stoichiometric mixture gives the higher value of stretched flame speed than those at φ{symbol} = 1.2 and φ{symbol} = 0.8. The Markstein numbers decrease with the increase of equivalence ratio, and this reveals that lean mixture will maintain higher stability of flame front surface than that of rich mixture in dimethyl ether-air premixed flames.

Original languageEnglish
Pages (from-to)2360-2366
Number of pages7
JournalFuel
Volume86
Issue number15
Early online date21 Feb 2007
DOIs
Publication statusPublished - 1 Oct 2007
Externally publishedYes

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