水素の自着火遅れ期間に対する化学反応論的解析(熱工学,内燃機関,動力など)

概要

論文の詳細を見る
In this study, the chemical kinetic analysis with a detailed hydrogen reaction model was conducted to examine the effects of temperature, pressure, and concentrations of fuel, oxygen and inert gas in Ar-H_2-O_2 mixtures on the auto-ignition delays. The results shows that the mixture temperature has a strong effect on auto-ignition delays, and that the richer mixtures ignite earlier because the increase in hydrogen concentration causes the decrease in the dilution of the inert gas in the mixture. Moreover, on the assumption that a mixture is composed of hydrogen, directly injected into a combustion chamber, and an ambient Ar-O_2 mixture, it is clarified that the inert gas concentration and temperature vary with the change in the hydrogen concentration in the mixture, and it can be supposed that the lean mixtures ignite earlier because temperatures of them are higher than those of the richer mixtures. And it is also supposed that the auto-ignition delays are shortened due to the promotion of the mixture formation.
2003-03-25