20215 高温・高圧下での炭化水素-空気混合気の燃焼特性に及ぼす雰囲気酸素濃度の影響(熱工学(3))

概要

論文の詳細を見る
Recently, environmental problems such as global warming and acid rain have become more serious. Therefore, a decrease of exhaust gas is demanded with the internal combustion engine. In this study, experiments had been carried out to examine the influence of atmosphere oxygen concentration for propane-air mixtures and methane-air mixtures using opposed rapid compression machine. It has been possible to obtain the fundamental combustion characteristics of the propane-air mixtures and the methane-air mixtures such as maximum burning pressure, total burning time and flame speed. The experimental results show that, (1) The maximum burning pressure decreasing with decreasing oxygen concentration under the same EGR ratio. (2) The reduction ratio of flame speed decreases with decreasing compression ratio. (3) The reduction ratio of flame speed depends on a fuel property.
2006-03-09