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Flame Front Acceleration of Propane-air Deflagration in Straight Tubes

ZHOU Kai yuan,LI Zong fen (University of Science and Technology of China,Hefei 230026,China)  
The propagating characteristics of deflagration flame in propane-air mixtures in straight tubes were studied experimentally using an array of repeated annular obstacles in a 100mm inner diameter tube.The parameters studied include the velocity of deflagration flame in smooth bore tube,the influence of nominal ignition energy on flame acceleration and the generation of high flame velocity.Based on the results,the validity and safety of flame arresters with conventional design and installation in tubes are under question.
【CateGory Index】: O382
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