Fundamental flame velocities of pure hydrocarbons II : alkadienes

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Data are presented for the fundamental flame velocities of 10 pure alkadienes that have isolated, conjugated, or cumulative double-bond systems. On the basis of this limited amount of data and the flame velocities previously reported, it is concluded that unsaturation changes the flame velocity in the order alkanes ? alkenes ? alkadienes with isolated double bonds ?= alkadienes with conjugated double bonds ? alkadienes with cumulative double bonds ?= alkynes. There were no significant differences in the flame velocities of cis and trans 1,3-pentadiene. The alkadienes 1,2-pentadiene and 2,3-pentadiene, with different positions of the cumulative double bond in the straight ... continued below

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Levine, Oscar; Wong, Edgar L & Gerstein, Melvin November 3, 1950.

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Description

Data are presented for the fundamental flame velocities of 10 pure alkadienes that have isolated, conjugated, or cumulative double-bond systems. On the basis of this limited amount of data and the flame velocities previously reported, it is concluded that unsaturation changes the flame velocity in the order alkanes ? alkenes ? alkadienes with isolated double bonds ?= alkadienes with conjugated double bonds ? alkadienes with cumulative double bonds ?= alkynes. There were no significant differences in the flame velocities of cis and trans 1,3-pentadiene. The alkadienes 1,2-pentadiene and 2,3-pentadiene, with different positions of the cumulative double bond in the straight chain, have similar flame velocities. Methyl substitution in a hydrocarbon reduces the flame velocity; the extent of the reduction increases with the degree of unsaturation of the hydrocarbon.

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  • : 93R15663
  • URL: http://hdl.handle.net/2060/19930086373 External Link
  • Report No.: NACA-RM-E50H25
  • Center for AeroSpace Information Number: 19930086373
  • Archival Resource Key: ark:/67531/metadc58618

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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  • November 3, 1950

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  • Nov. 16, 2011, 7:33 a.m.

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  • Jan. 30, 2017, 6:17 p.m.

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Levine, Oscar; Wong, Edgar L & Gerstein, Melvin. Fundamental flame velocities of pure hydrocarbons II : alkadienes, report, November 3, 1950; (digital.library.unt.edu/ark:/67531/metadc58618/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.