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An experimental study of the effects of high frequency electric fields on laser-induced flame propagation

✍ Scribed by G.P. Tewari; J.R. Wilson

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
955 KB
Volume
24
Category
Article
ISSN
0010-2180

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✦ Synopsis

The paper describes experiments in which high frequency electric fields were applied across flames generated by the action of laser-induced sparks. The objective of the study was to establish whether such fields affect the rates of flame propagation in mixtures at one atmosphere pressure of methane/air, methane/oxygen/argon and hydrogen/air. It is shown that there is a marked increase in the propagation rates of methane/air flames, while substitution of argon for the nitrogen in such flames appears to decrease the effect significantly. In the case of hydrogen/air flames no significant increases in flame propagation rates are reported. It is concluded that recently published proposals based on an electron energy exchange mechanism does not adequately account for the observations reported in this paper.

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