反射衝撃波背後におけるアセトンの均一相熱酸化機構(熱工学, 内燃機関, 動力など)

抄録

The thermal oxidation of acetone mixture, highly diluted with argon, has been observed in the mixtures of 0.02-0.5% acetone and 0.04-10% oxygen using UV absorption and IR emission. The experiments were performed behind reflected shock wave at temperatures 1200 1700K and at densities (2-9)×(10)⁵mol/cm³. The time histories of absorption intensity at 270nm and emission at 3.4μm due to CH₃COCH₃, absorption intensity at 310nm due to OH, emission intensity at 4.2μm due to CO₂, and emission intensity at 4.7μm due to CO and CO₂ were followed. The oxidation scheme CH₃COCH₃⇾CH₃CO⇾CH₃⇾(C₂H₆)⇾C₂H₄⇾CH₂O (H₂C₂O)⇾CO⇾CO_2- was obtained by comparing the experimental profiles with the profiles of computer simulation. The rate of acetone decomposition influenced the induction period of the oxidation.