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Role of O 3 addition in the deflagration-to-detonation transition of an ethylene–oxygen mixture in a macroscale tube
Shock Waves ( IF 2.2 ) Pub Date : 2021-01-13 , DOI: 10.1007/s00193-020-00981-w
C. Wang , G. T. Gu , W. H. Han , Y. Cai

Deflagration-to-detonation transition (DDT) in a macroscale tube is investigated experimentally for stoichiometric ethylene–oxygen with O3 (ozone) addition. The effect of O3 addition on the DDT process is studied, including its dependence on initial pressure. This kinetic effect of ozone addition was investigated by examining the influence of ozone self-decomposition and ethylene ozonolysis on ignition delay time. It was found that O3 addition promotes DDT, while excessive O3 addition has a negative effect on DDT. Consequently, there is a critical O3 addition effect which depends strongly on initial pressure. For a lower initial pressure, kinetic effects of O3 addition are more obvious.



中文翻译:

O 3在大型管中乙烯-氧气混合物的爆燃-爆轰过渡中的作用

对于添加了O 3(臭氧)的化学计量的乙烯-氧气,对大型管中的爆燃-爆轰过渡(DDT)进行了实验研究。研究了O 3添加对DDT过程的影响,包括其对初始压力的依赖性。通过检查臭氧自分解和乙烯臭氧分解对点火延迟时间的影响,研究了添加臭氧的这种动力学效应。发现添加O 3促进了滴滴涕,而过量添加O 3对滴滴涕有负面影响。因此,O 3的临界添加效果在很大程度上取决于初始压力。对于较低的初始压力,O 3的动力学作用 另外比较明显。

更新日期:2021-01-13
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