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论文类型：期刊论文

发表时间：2008-01-01

发表刊物：JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES

收录刊物：SCIE、EI

卷号：21

期号：1

页面范围：118-123

ISSN号：0950-4230

关键字：deflagration; impulse; gas cloud; obstruction

摘要：A new experimental method for investigating the effects of obstructions on impulse resulted from flammable gas cloud deflagration is presented in this paper. Two types of obstructions-multi-rectangular hole (RH) hemisphere shells and multi-circular hole (CH) hemisphere shells-were studied here covering opening ratios ranging from 20% to 100%. The experimental results reveal that the increase in deflagration impulse depends on the geometry, size, opening ratio and layer number of obstructions. The deflagration impulse induced by the RH obstructions was higher than that induced by the CH obstruction. (c) 2007 Elsevier Ltd. All rights reserved.