Ignition and explosion behaviour of methane/air mixtures caused by a radiatively heated inert particle

Venelin A. Stamatov*, Keith D. King, Zeyad T. Alwahabi, James P. Denier, Dong ke Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

An experimental and modeling study of the ignition and explosion behavior of quiescent methane/air mixtures caused by a radiatively heated inert particle was carried out. The initial methane content was from 6 to 14 vol % and the total initial pressure of the gas was maintained constant at 1 atm. The explosion-delay time depended exponentially on the radiative power flux and tended to infinity at the critical values of the power flux. There was a tendency for the explosion-delay time to increase with increasing particle mass at fixed laser power flux and a stoichiometric mixture of methane and air. The explosion-delay time tended to infinity as the gas mixture composition approached the extremities of the flammability limits, while the minimum time occurred at the stoichiometric methane/air ratio. The numerical simulations correlated well with the experimental values if the correlation was included. However, the absence of such a factor led to significantly higher values (by a factor of ten) of the critical radiation power flux. Original is an abstract.

Original languageEnglish
Title of host publicationInternational Symposium on Combustion Abstracts of Works-in-Progress Posters
Place of PublicationPittsburgh, PA
PublisherThe Combustion Institute
Pages277
Number of pages1
Publication statusPublished - 2002
Externally publishedYes
Event29th International Symposium on Combustion - Sapporo, Japan
Duration: 21 Jul 200226 Jul 2002

Other

Other29th International Symposium on Combustion
CountryJapan
CitySapporo
Period21/07/0226/07/02

Fingerprint

Dive into the research topics of 'Ignition and explosion behaviour of methane/air mixtures caused by a radiatively heated inert particle'. Together they form a unique fingerprint.

Cite this