Explosion characteristics of n-butanol/iso-octane-air mixtures (PDF)
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Explosion characteristics of n-butanol/iso-octane-air mixtures (PDF)
- 发表刊物：
- Fuel
- 摘要：
- 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 pexppexp and the maximum explosion pressure pmaxpmax, the maximum rate of pressure rise (dp/dt)max(dp/dt)max, the deflagration index KGKG, and combustion duration tctc as well as flame development period tdtd, 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.
- 合写作者：
- Hu EJ, Tian HZ, Zhang XY, Li XT, Huang ZH
- 卷号：
- 2017, 188: 90-97
- 页面范围：
- 90-97
- 是否译文：
- 否
- 发表时间：
- 2016-12-31