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论文类型：期刊论文

发表时间：2013-03-01

发表刊物：COMBUSTION EXPLOSION AND SHOCK WAVES

收录刊物：SCIE、EI

卷号：49

期号：2

页面范围：153-158

ISSN号：0010-5082

关键字：aluminum silicate wool; flame speed; explosion overpressure; explosion suppression

摘要：Problems of decreasing the flame speed resulting from pre-mixed gas explosions and attenuating explosion overpressures are discussed. A cylindrical test pipeline with an 89x4.5 mm cross section is used to study flame propagation characteristics of an acetylene-air mixture both in the empty pipeline and in the presence of aluminum silicate wool attached to the internal wall of the pipeline. Experimental results show that aluminum silicate wool, which is a kind of a fibroid porous material with a high specific surface area, decreases the increment of the outlet flame speed and attenuates drastically the explosion overpressure if the length of the porous insert exceeds the critical length.