Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics

Zhang, Bin; Feng, Weidong; Zhang, Xingdong; An, Shudong; Girma, Amanuel; Wu, Wanqing

Bin Zhang, Weidong Feng, Xingdong Zhang, Shudong An, Amanuel Girma, Wanqing Wu

Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics

Abstract:

In order to study the effect of combustible gas cloud releasing from FPSO upper deck facilities deflagration characteristics on air pollution, a semi-open open test pipe system was built. By changing the initial conditions such as the obstacles length, distance between obstacles, section shape of obstacles and pipe system structure, the flame propagation mechanism and overpressure changing rules of methane / air deflagration were analyzed. As a result of that, the degree of sufficiency of methane combustion was analyzed, which could be seen as air pollution level. With the increase of the length of obstacle and decrease of the distance between obstacles, the induced turbulence increased, the compression effect of unburned gas became stronger, the combustion of combustible gas became more intense and sufficient, and the flame propagation speed and the maximum overpressure increased. The effect of square cross section was more obvious on inducing turbulence than that of rectangular cross section and circular cross section. The flame front was divided into many small flames by the pipe structure obstacle, and the flame front showed as a 'spiny' shape. Under the effect of “spiny” flame, the methane combustion was more sufficient, and the maximum overpressure value was 3.1 times of the circular section obstacle condition. In conclusion, as the methane-air deflagration becoming more serious, although the overpressure and flame speed would be higher and the extent of damage to the surrounding facilities would be more serious, the air pollution causing by unburned gas would abate.

Keywords:
air pollution; deflagration; flame propagation; overpressure changing rule

Issue: 2020, Volume 71, Issue 4

Pages: 549-560

Publication date: 2020/5/5

https://doi.org/10.37358/RC.20.4.8096

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
ZHANG, B., FENG, W., ZHANG, X., AN, S., GIRMA, A., WU, W., Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics, Rev. Chim., 71(4), 2020, 549-560.

Vancouver
Zhang B, Feng W, Zhang X, An S, Girma A, Wu W. Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics. Rev. Chim.[internet]. 2020 Apr;71(4):549-560. Available from: https://doi.org/10.37358/RC.20.4.8096

APA 6th edition
Zhang, B., Feng, W., Zhang, X., An, S., Girma, A. & Wu, W. (2020). Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics. Revista de Chimie, 71(4), 549-560. https://doi.org/10.37358/RC.20.4.8096

Harvard
Zhang, B., Feng, W., Zhang, X., An, S., Girma, A., Wu, W. (2020). 'Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics', Revista de Chimie, 71(4), pp. 549-560. https://doi.org/10.37358/RC.20.4.8096

IEEE
B. Zhang, W. Feng, X. Zhang, S. An, A. Girma, W. Wu, "Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics". Revista de Chimie, vol. 71, no. 4, pp. 549-560, 2020. [online]. https://doi.org/10.37358/RC.20.4.8096

Text
Bin Zhang, Weidong Feng, Xingdong Zhang, Shudong An, Amanuel Girma, Wanqing Wu,
Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics,
Revista de Chimie,
Volume 71, Issue 4,
2020,
Pages 549-560,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.4.8096.
(https://revistadechimie.ro/Articles.asp?ID=8096)
Keywords: air pollution; deflagration; flame propagation; overpressure changing rule

RIS
TY - JOUR
T1 - Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics
A1 - Zhang, Bin
A2 - Feng, Weidong
A3 - Zhang, Xingdong
A4 - An, Shudong
A5 - Girma, Amanuel
A6 - Wu, Wanqing
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 4
SP - 549
EP - 560
UR - https://doi.org/10.37358/RC.20.4.8096
KW - air pollution
KW - deflagration
KW - flame propagation
KW - overpressure changing rule
ER -

BibTex
@article{RevCh2020P549,
author = {Zhang Bin and Feng Weidong and Zhang Xingdong and An Shudong and Girma Amanuel and Wu Wanqing},
title = {Experimental Study on the Effect of Air Pollution Caused by Methane-Air Deflagration Characteristics},
journal = {Revista de Chimie},
volume = {71},
number = {4},
pages = {549-560},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.4.8096},
url = {https://revistadechimie.ro/Articles.asp?ID=8096}
}

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