Role of O3 addition in the deflagration-to-detonation transition of an ethylene–oxygen mixture in a macroscale tube

C. Wang, G. T. Gu, W. H. Han*, Y. Cai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)781-787
Number of pages7
JournalShock Waves
Volume30
Issue number7-8
DOIs
Publication statusPublished - Nov 2020

Keywords

  • Deflagration
  • Detonation
  • Ozone

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