1. College of Safety and Ocean Engineering, China University of Petroleum-Beijing, 18 Fuxue Road, Beijing 102249, P. R. China
2. Key Laboratory of Oil and Gas Safety and Emergency Technology, Ministry of Emergency Management, 18 Fuxue Road, Beijing 102249, P. R. China
3. State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China