Combustion characteristics of methanol–air and methanol–air–diluent premixed mixtures at elevated temperatures and pressures
Combustion characteristics of methanol–air and methanol–air–diluent premixed mixtures at elevated temperatures and pressures
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DOI：
10.1016/j.applthermaleng.2008.12.028
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发表时间：
2009-09
影响因子：
6.4
通讯作者：
Zhiyuan Zhang;Zuo-hua Huang;Xiangang Wang;Jianjun J. Zheng;H. Miao;Xibin Wang
中科院分区：
文献类型：
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作者：
Zhiyuan Zhang;Zuo-hua Huang;Xiangang Wang;Jianjun J. Zheng;H. Miao;Xibin Wang
研究了甲醇-空气预混混合物在定容弹中在不同当量比、初始压力和温度以及稀释比下的燃烧特性。结果表明，当当量比为1.1时，燃烧压力、质量燃烧速率和燃烧气体温度达到最大值，而火焰发展持续时间和燃烧持续时间在当量比为1.1时达到最小值。火焰发展持续时间、燃烧持续时间和峰值燃烧压力随着初始温度的升高而减小，而最高燃烧气体温度随着初始温度的升高而升高。峰值燃烧压力和温度随着初始压力的增加而增加。火焰发展持续时间和燃烧持续时间随着稀释比的增加而增加，而峰值燃烧压力和温度则随着稀释比的增加而降低。
Combustion characteristics of the methanol–air premixed mixtures were studied in a constant volume bomb at different equivalence ratios, initial pressures and temperatures, and dilution ratios. The results show that the combustion pressure, the mass burning rate and the burned gas temperature get the maximum value at the equivalence ratio of 1.1 while the flame development duration and the combustion duration get the minimum value at the equivalence ratio of 1.1. The flame development duration, the combustion duration and the peak combustion pressure decrease with the increase of the initial temperature, while the maximum burned gas temperature increases with the increase of the initial temperature. The peak combustion pressure and temperature increase with the increase of the initial pressure. The flame development duration and combustion duration increase with the increase of the dilution ratio, while the peak combustion pressure and temperature decrease with the increase of the dilution ratio.