Effects of obstacle angle on methane-air deflagration characteristics in a semi-confined chamber

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• 作者：Xiaoping Wen^a ; ^{wenxiaoping666@163.com} ; Haoqing Ding^a ; Tengfei Su^a ; Fahui Wang^a ; Haoxin Deng^a ; Kai Zheng^b
• 关键词：Premixed deflagration ; Obstacle angle ; Flame propagation ; Overpressure ; Blockage ratio
• 刊名：Journal of Loss Prevention in the Process Industries
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：45
• 期：Complete
• 页码：210-216
• 全文大小：3678 K
• 卷排序：45

文摘

Nine configurations with different obstacle angles are investigated. High-speed flame images and overpressures were recorded and analyzed. Obstacle angles have significant effects on deflagration characteristics. The case with 90° angle produces the highest overpressure. Increasing the blockage of the obstacle decreases the maximum flame speed.