Numerical study of ethylene and acetylene laminar flame speeds

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Detailed chemical kinetic computations for ethylene-air and acetylene-air mixtures have been performed to simulate laminar flame speeds. Sensitivity analysis was applied to determine those reactions which strongly influence flame propagation. In ethylene-air mixtures, the C{sub 2}H{sub 3} + O{sub 2} = CH{sub 2}CHO + O reaction was one of the most sensitive reactions in the C{sub 2}H{sub 4}/C{sub 2}H{sub 3} submechanism and therefore this reaction was very important to ethylene flame propagation. This reaction was not considered in previously reported mechanisms used to model ethylene-air flame propagation. In acetylene-air mixtures, the C{sub 2}H{sub 2}+O {yields} Products, HCCO+H=CH{sub 2}(s)+CO, HCCO+O{sub 2}=CO{sub ... continued below

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8 p.

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Marinov, N.M.; Pitz, W.J. & Westbrook, C.K. March 1, 1995.

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Description

Detailed chemical kinetic computations for ethylene-air and acetylene-air mixtures have been performed to simulate laminar flame speeds. Sensitivity analysis was applied to determine those reactions which strongly influence flame propagation. In ethylene-air mixtures, the C{sub 2}H{sub 3} + O{sub 2} = CH{sub 2}CHO + O reaction was one of the most sensitive reactions in the C{sub 2}H{sub 4}/C{sub 2}H{sub 3} submechanism and therefore this reaction was very important to ethylene flame propagation. This reaction was not considered in previously reported mechanisms used to model ethylene-air flame propagation. In acetylene-air mixtures, the C{sub 2}H{sub 2}+O {yields} Products, HCCO+H=CH{sub 2}(s)+CO, HCCO+O{sub 2}=CO{sub 2}+CO+H, H+C{sub 2}H{sub 2}(+M) = C{sub 2}H{sub 3}(+M) and CH{sub 2}(s)+C{sub 2}H{sub 2} = H{sub 2}CCCH+H were the most sensitive reactions in the C{sub 2}H{sub 2}/HCCO / CH{sub 2}(s) reaction set.

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8 p.

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OSTI as DE95014203

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  • Central States/Western States Institute and American Flame Research committee meeting, San Antonio, TX (United States), 23-26 Apr 1995

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  • Other: DE95014203
  • Report No.: UCRL-JC--120449
  • Report No.: CONF-9504161--3
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 95333
  • Archival Resource Key: ark:/67531/metadc794912

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  • March 1, 1995

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  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 23, 2016, 3:08 p.m.

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Marinov, N.M.; Pitz, W.J. & Westbrook, C.K. Numerical study of ethylene and acetylene laminar flame speeds, article, March 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc794912/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.