✦ LIBER ✦

Flame propagation on thermal ignition

✍ Scribed by A. Melvin

Publisher: Elsevier Science
Year: 1969
Tongue: English
Weight: 806 KB
Volume: 13
Category: Article
ISSN: 0010-2180
DOI: 10.1016/0010-2180(69)90051-0

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✦ Synopsis

An optical study has been made of the thermal ignition of a mixture containing 16.7 per cent methane and 83.3 per cent oxygen in the temperature range 520 ° to 750°C and at a total pressure of 600 torr. Ignition was observed to commence in the gas phase at a point close to the centre of the cylindrical explosion vessel and was followed by spherical flame propagation. Burning ~elocities relative to the unburnt gas varied from 1 150 to 2 330 cm/sec over the temperature range studied. It is c,mcluded that the large variation of burning velocity with temperature is consistent with trends observed for steady-state flames of methane and air.

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