Explosion characteristics of n-butanol/iso-octane-air mixtures
Explosion characteristics of n-butanol/iso-octane-air mixtures
复制标题
正丁醇/异辛烷-空气混合物的爆炸特性
DOI：
10.1016/j.fuel.2016.10.002
复制
发表时间：
2017-01
期刊：
影响因子：
7.4
通讯作者：
Zuohua Huang
中科院分区：
文献类型：
--
作者：
Erjiang Hu;Hongzhen Tian;Xinyi Zhang;Xiaotian Li;Zuohua Huang
正丁醇是一种极具发展前景的汽车代用燃料，其爆炸特性在广泛应用前应重点研究。遗憾的是，目前针对其爆炸特性的研究还比较有限。本研究在燃烧压力历史的基础上，实验研究了正丁醇添加量对不同浓度、不同初始压力和温度的异辛烷-空气混合物爆炸特性的影响。测试了爆炸压力p exp、最大爆炸压力p max、最大升压率（d p/d t） max、爆燃指数K G、燃烧持续时间t c和火焰发展时间t d。结果表明：随着正丁醇掺量的增加，爆炸压力没有变化，但爆炸持续时间缩短，最大压力上升速率增大；结果表明，在高压下，富混合气的压力曲线在压力峰值附近出现振荡，这种振荡大大缩短了爆炸持续时间，增大了最大压力上升速率。此外，随着正丁醇掺合比的增加，压力振荡强度减小。
N-butanol is a promising alternative fuel for automobile whose explosion characteristics should be a major focus before widely used. Unfortunately, limit researches focusing on its explosion characteristics have been launched until now. In this study, the effects of n-butanol addition on the explosive characteristics of iso-octane-air mixtures with various concentrations and initial pressures and temperatures were experimentally investigated and analysed on the basis of combustion pressure history. The explosion pressure p exp and the maximum explosion pressure p max, the maximum rate of pressure rise (d p/d t) max, the deflagration index K G, and combustion duration t c as well as flame development period t d, were examined. Results show that with the increase of n-butanol blending ratio, explosion pressure does not change, while explosion duration is decreased, so the maximum rate of pressure rise is increased. It was found that pressure curves of rich mixtures oscillate in the vicinity of pressure peak at elevated pressures, and the pressure oscillation greatly shortens the explosion duration and increases the maximum rate of pressure rise. In addition, with the increase of n-butanol blending ratio, the pressure oscillation intensity is decreased.
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影响因子：
11.4
作者：
Ezeji, Thaddeus;Blaschek, Hans P.
通讯作者：
Blaschek, Hans P.
影响因子：
6.4
作者：
Zhiyuan Zhang;Zuo-hua Huang;Xiangang Wang;Jianjun J. Zheng;H. Miao;Xibin Wang
通讯作者：
Zhiyuan Zhang;Zuo-hua Huang;Xiangang Wang;Jianjun J. Zheng;H. Miao;Xibin Wang
影响因子：
1
作者：
Y. Jo;D. Crowl
通讯作者：
Y. Jo;D. Crowl
影响因子：
7.4
作者：
D. Razus;C. Movileanu;V. Brînzea;D. Oancea
通讯作者：
D. Razus;C. Movileanu;V. Brînzea;D. Oancea
DOI：
10.1128/mr.50.4.484-524.1986
发表时间：
1986-12
期刊：
Microbiological Reviews
影响因子：
--
作者：
D. T. Jones;D. R. Woods
通讯作者：
D. T. Jones;D. R. Woods