期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 60, 页码 25433-25442出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.05.256
关键词
Hydrogen explosion; Isobutene; Carbon dioxide; Suppression mechanism
资金
- National Key R&D Program of China [2021YFB4000902]
- Natural Science Foundation of Excellent Young Scholars [51922025]
This study investigates the effects of isobutene and carbon dioxide on hydrogen explosions and finds that their combination can effectively suppress explosion pressure and deflagration index. Numerical simulation reveals the mechanism of the suppression by isobutene and carbon dioxide.
The effects of isobutene (i-C4H8) and carbon dioxide (CO2) on hydrogen explosions have been explored in a 14 L spherical chamber at 100 kPa and 298 K. The results show that compared with CO2, the cooperation of i-C4H8 and CO2 can more effectively suppress the explosion pressure, pressure rise rate, and deflagration index. The minimum suppression concentration of CO2 with 1.5% i-C4H8 is much lower than that of CO2 alone. Numerical simulation reveals the mechanism of the suppression of i-C4H8 and CO2. I-C4H8 changes the reaction paths, and the addition of CO2 further lowers the adiabatic flame temperature and the active radical concentration. The excellent performance of the cooperation of i-C4H8 and CO2 in hydrogen explosions will provide a new idea for the prevention and control of hydrogen explosions. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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