Citation

Dong Z, Wang Y, Liu L, Chen X, Yang M. China Saf. Sci. J. 2022; 32(10): 148-153.

Copyright

(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2022.10.2588

PMID

unavailable

Abstract

In order to provide theoretical support for the safe storage, transportation and use level of jet fuel, the variation characteristics of explosion pressure, pressure rise rate, temperature and flame propagation velocity of jet fuel with different mass concentrations in different volume pressure containers were studied experimentally, and the change process of flame structure of jet fuel was simulated by CFD (Computational Fluid Dynamics) explosion simulation software. The effects of container volume and fuel mass concentration on the combustion and explosion characteristics were analyzed. The results show that in the confined space, the explosion parameters of jet fuel first increase and then decrease with the increase of mass concentration, and the fuel mass concentration of the maximum explosion hazard is 104. 17 g / m3. At the same time, the pressure generated by the detonation of jet fuel is equal everywhere, and in an equal proportion containers, when the chemical equivalence ratio is close to 1, the maximum flame propagation speed and maximum deflagration pressure of jet fuel are basically not affected by the container volume, but the maximum average pressure rise rate caused by the detonation of jet fuel is inversely proportional to the container size. In the same time, the larger the detonation space, the higher the internal temperature. © 2022 China Safety Science Journal. All rights reserved.

Language: zh