Studies on the flame propagation characteristic and thermal hazard of the premixed N2O/fuel mixtures |
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| Institution: | 1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China;2. Beijing Insitute of Aerospace Testing Technology, Beijing Key Laboratory of Research and Application for Aerospace Green Propellants, Beijing 100074, PR China;3. National Quality Supervision and Inspection Center for Industrial Explosive Materials, Nanjing, Jiangsu 210094, PR China |
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| Abstract: | An experimental study was carried out to investigate the ?ame propagation and thermal hazard of the premixed N2O/fuel mixtures, including NH3, C3H8 and C2H4. The study provided the high speed video images and data about the ?ame locations, propagation patterns, overpressures and the quenching diameters during the course of combustion in different channels to elucidate the dynamics of various combustion processes. The onset decomposition temperature was determined using high-performance adiabatic calorimetry. It was shown that the order of the flame acceleration rate and thermal hazard was N2O/C2H4>N2O/C3H8>N2O/NH3. |
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| Keywords: | Flame propagation Flame acceleration rate Quenching diameter Thermal hazard |
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