20214 高湿度・低酸素雰囲気中での希薄側可燃限界における炭化水素-空気混合気の燃焼特性(熱工学(3))

概要

論文の詳細を見る
In practical internal combustion engines, where it is very important to achieve the low emissions(CO_2, NO_x, SO_x). It is well known that the lean burn is very useful method to reduce the emissions by control of flame temperature. Therefore, in this study, at low oxygen concentration high humidity mixture was used for flame temperature reduction. Experiments have been carried out with lean propane-air mixtures to examine the influence of oxygen concentration under high-humidity air and dry air conditions on propagation limit and flame speed in a combustion tube. The experimental results in this study are as follows: (1) The influence of oxygen concentration on flame behavior increases with decreasing oxygen concentration. (2) The reduction rate of flame speed with humidity for propane-air mixtures were subjected to marked influence of oxygen concentration.
2006-03-09