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Overpressure development during the combustion of a hydrogen–air mixture partial filling a confined space
Authors:Geraint O Thomas  Gwyn L Oakley
Institution:1. Combustion Hazard Research, DDT Experts, P.O. Box 217, Aberystwyth SY23 3XT, UK;2. Aber Shock and Detonation Research Limited, Maes-y-Deri, Rhydlewis, Llandysul, Ceredigion SA44 5RE, UK;1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, People''s Republic of China;2. Department of Aerospace Engineering, University of Maryland, College Park, MD, 20742, USA;3. School of Chemical Machinery, Dalian University of Technology, Dalian, 116024, People''s Republic of China;1. Hydrogen Safety Engineering and Research Centre (HySAFER), University of Ulster, Shore Road, Newtownabbey, BT37 0QB, Northern Ireland, UK;2. Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Epinal Way, Loughborough, LE11 3TU, UK;1. School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, PR China;2. School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China;1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China;2. Nanjing Vocational University of Industry Technology, Nanjing, 211106, China;3. Changzhou University, Changzhou 213016, China
Abstract:The paper describes the results from experimental studies and theoretical predictions of the final overpressures developed on combustion of a partial volume inside a larger closed vessel. The partial volume is assumed flammable whilst the remainder of the volume is initially filled with air alone. Particular attention is given to partial volumes of hydrogen–air mixtures. The accuracy of two theoretical models for predicting the final equilibrium pressure throughout the entire closed volume are also assessed.
Keywords:
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