文献类型：期刊文献

英文题名：Research on explosion venting characteristics of CH4/H2/Air mixture in square explosion vessels

作者：Zhou, Wen[1];Zhang, Jiefan[2];Li, Xinfeng[3];Zhao, Yue[3];Zhang, Ting[3];Shi, Xueqiang[3];Fu, Guoen[4];Xu, Jianfu[5];Shen, Xiaobo[6];Cao, Weiguo[3]

机构：[1]Taiyuan Inst Technol, Dept Environm & Safety Engn, Taiyuan 030008, Shanxi, Peoples R China;[2]Hubei Inst Aerosp Chemotechnol, Sci & Technol Aerosp Chem Power Lab, Xiangyang 441003, Hubei, Peoples R China;[3]North Univ China, Sch Environm & Safety Engn, Taiyuan 030051, Shanxi, Peoples R China;[4]Shanxi Keda New Energy Technol Co LTD, Taiyuan 030082, Shanxi, Peoples R China;[5]Shanxi Tizones Technol Co Ltd, Taiyuan 030082, Shanxi, Peoples R China;[6]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：56

外文期刊名：CASE STUDIES IN THERMAL ENGINEERING

收录：;EI(收录号：20241115718481);WOS:【SCI-EXPANDED(收录号:WOS:001217498900001)】；

基金：The authors would like to express their deepest appreciation for the support given by the China Postdoctoral Science Foundation (2023M733276) , the National Natural Science Foundation of China (12172336) , and the Fundamental Research Program of Shanxi Province, China (202303021212202) .

语种：英文

外文关键词：CH4/H2/Air mixture; Explosion vessel; Explosion characteristics; Venting flame; Equivalence ratio

摘要：Hydrogenation of methane (CH 4 ) is an important means of achieving energy savings and largescale hydrogen (H 2 ) transportation. Explosion venting is considered to be an effective method to reduce the risk of gas explosions. To investigate the parameters of the explosion characteristics of CH 4 /H 2 /Air premixed fuel under venting conditions, the explosion characteristics and the dynamic propagation law of venting flame in CH 4 /Air mixtures with 5% concentration were studied in 20 L and 40 L square explosion venting vessels. The development process of flames inside vessels, the evolution characteristics of explosive venting flames, and the changes in explosion pressure were tested using a high-speed camera and pressure sensors. The maximum explosion pressure, the maximum explosion pressure rise rate, and the maximum flame velocity increased first and then decreased with the addition of H 2 . However, the maximum flame length increased continuously with the increase of H 2 . With the increase of hydrogenation, the maximum flame area showed an exponential increase. At equivalence ratio less than 1, the effect of hydrogenation on the flame area was much attenuated than that at equivalence ratio was greater than 1.