文献类型：期刊文献

英文题名：Effects on external pressures caused by vented explosion of methane-air mixtures in single and connected vessels

作者：Wang, Zhirong[1]; Pan, Moyu[1]; Wang, Siqi[2]; Sun, Dongliang[3]

机构：[1] Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Jiangsu Key Laboratory of Urban and Industrial Safety, College of Urban Construction and Safety Engineering, Nanjing Tech University, Nanjing, 210009, China; [2] Department of Electrical Engineering, University of Maryland, College Park, MD, 20740, United States; [3] Department of Environmental Engineering, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2020

卷号：33

期号：4

起止页码：385

外文期刊名：Process Safety Progress

收录：EI(收录号：20143600046167)

语种：英文

外文关键词：Mixtures - Methane

摘要：An experimental apparatus was built to study the external pressure caused by vented explosions of methane and air mixtures. In some circumstances, two peak points of external pressure induced by vented explosion appear. One of the peaks is caused by the vented flow from the vessel while the other one is due to the vented flow from the vessel or external explosion. Both the maximum external pressure and pressure rising rate increase with initial pressure, explosion venting pressure and vent diameter of the vented vessel. The maximum external pressure and pressure rising rate decrease with the volume of the vessel. The maximum pressure and the maximum pressure increase rate occur when the methane concentration is 9.5%. Compared with explosion outside one single big vessel, explosion outside the connected vessels is more severe. The external pressure caused by ignition in the center of the small vessel is higher than that in the center of the big vessel while the external pressure rising rate caused by ignition in the center of the small vessel is lower than that in the center of the big vessel. ? 2014 American Institute of Chemical Engineers.