激波管内燃料两相云雾爆轰的实验研究

姚干兵; 解立峰; 刘家骢

doi:10.11858/gywlxb.2007.01.013

激波管内燃料两相云雾爆轰的实验研究

doi: 10.11858/gywlxb.2007.01.013

1.
南京理工大学化工学院，江苏南京 210094；
2.
北京理工大学爆炸科学与技术国家重点实验室，北京 100081

详细信息

通讯作者:
解立峰

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出版历程
- 收稿日期: 2006-02-27
- 修回日期: 2006-08-07
- 发布日期: 2007-03-05

Experimental Study on Detonation Characteristics of Several Liquid Fuel-Air Clouds in Shock Tube

1.
Chemical School, Nanjing University of Science and Technology, Nanjing 210094, China;
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

More Information

Corresponding author: XIE Li-Feng

摘要

摘要: 在立式激波管中采用压力传感器和烟迹技术实测了6种碳氢燃料（环氧丙烷、硝酸异丙酯、C5~C6、己烷、庚烷和癸烷）与空气混合物的临界起爆能和爆轰波胞格尺寸。结果表明，燃料气液两相云雾爆轰的临界起爆能与当量比呈U形曲线关系，并且最敏感的起爆点在富燃料一侧，这与气相爆轰结论是一致的；由三波点运动的烟迹记录结果分析得出，雾滴的碎解、蒸发汽化过程以及燃烧区前导是控制气液两相云雾爆轰的作用机制。
- 燃料 /
- 气云 /
- 临界起爆能 /
- 胞格尺寸
Abstract: The detonation characteristics of fuel (PO, IPN, C5~C6, hexane, heptane, Decane)-air cloud were studied in shock tube. The critical initiation energy was measured by the up and down method and cell size by smoked metallic foil. The comparison of detonation characteristics among these fuels was also carried. Results demonstrate that the relationship of critical initiation energy and equivalence ratio shows an U shape curve, the minimal critical energy is obtained when equivalence ratio is slightly larger than 1. The conclusion is similar to the gaseous detonation. These experimental results help us deeply understanding the detonation nature of hydrocarbon-air mixtures.
- fuel /
- cloud /
- critical initiation energy /
- cell size

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参考文献(10)

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