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Radical recombination reactions in H2/O2/N2 flames: participation of the HO2 radical

✍ Scribed by N.J. Friswell; M.M. Sutton

Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
726 KB
Volume
15
Category
Article
ISSN
0009-2614

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✦ Synopsis

Radicalrecombination

rates have been measured in fuel-lean H2/02/N2 fhmesat temperatures up to 3130'K.

The observed rnres cannot be accoan:ed for in terms of termolecular reactions such as H f OH + in! -. Hz0 + hl and the occunence of an additional recumbination route, H + 02 + hI 5 HO? + &I, HO2 + OH 2 Hz0 + 02, satisfies the csperimentalresults. A mlue for X-i of 1.2 X 1Ol3 cm3 mole-* see-' at 213O'K isderived.

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The rate constants for the reactions C20 + H -products (1) and C20 + H2 + products ( 2) have been determined at room temperature by means of laser-induced fluorescence detection of C,O radicals, c oenerated either by the KrF excimer laser photolysis of C302, or by the reaction of C302 with 0 atoms.