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Investigation of Combustion Enhancement by Ozone in a Constant-Volume Combustion Bomb

Ji, Shaobo, Wang, Hao, Shu, Minglei, Tian, Guohong, Lan, Xin, Li, Meng, Li, Lun and Cheng, Yong (2019) Investigation of Combustion Enhancement by Ozone in a Constant-Volume Combustion Bomb Energy & Fuels, 33 (9). pp. 9114-9123.

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This paper presents both experimental and numerical studies to investigate the impact of ozone concentration on a methane/air mixture combustion process. The experiments were conducted in a constant-volume combustion bomb at elevated initial pressures. Combustion pressure history, combustion duration, and burning rate were obtained at different air/fuel ratios, initial pressures, and ozone mixing ratios. The results suggested that ozone addition promoted combustion by increasing peak pressure and peak burning rate and decreasing combustion duration. Chemical kinetic calculation was carried out to assist in the understanding of how ozone enhanced the combustion process. The calculation results revealed that the dominant production and consumption reactions were enhanced by ozone addition. The promotion effect of ozone on the combustion process was mainly caused by the O atom decomposed from ozone. With ozone addition, the concentration of O, H, OH, and HO₂ increased more obviously in the early stage of the combustion process, and ozone mainly played an important role at the beginning of the mixture oxidation.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Ji, Shaobo
Wang, Hao
Shu, Minglei
Lan, Xin
Li, Meng
Li, Lun
Cheng, Yong
Date : 19 September 2019
DOI : 10.1021/acs.energyfuels.9b00775
Copyright Disclaimer : Copyright © 2019 American Chemical Society
Uncontrolled Keywords : Methane; Ozone; Combustion; Constant volume combustion bomb; Chemical reaction kinetic analysis
Depositing User : Clive Harris
Date Deposited : 28 Aug 2019 15:07
Last Modified : 26 Jul 2020 02:08

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