oxygen reaction
Recently Published Documents


TOTAL DOCUMENTS

401
(FIVE YEARS 32)

H-INDEX

38
(FIVE YEARS 6)

2022 ◽  
Vol 517 ◽  
pp. 230728
Author(s):  
Bizhe Su ◽  
Shuilin Wu ◽  
Hanqin Liang ◽  
Qinfen Gu ◽  
Huimin Wang ◽  
...  

2021 ◽  
pp. 127556
Author(s):  
Yingju Yang ◽  
Jing Liu ◽  
Junyan Ding ◽  
Yingni Yu ◽  
Junying Zhang

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yuntao Liang ◽  
Rui Zhou

In this study, we develop a fully coupled thermal-hydrological-mechanical-chemical (THMC) model to analyze the spontaneous combustion process of underground coal seams, focusing on investigating the influences of the pressure difference between oxygen and coal, the rate of coal-oxygen reaction heat, and the activation energy. The simulation results show that as oxygen propagates into the coal seams, the coal-oxygen reaction causes the spontaneous combustion of coal to heat. The consumption of oxygen leads to an increase in oxygen consumption along the way and a decrease in gas pressure. The permeability near the right boundary increases while significantly reducing the area far away from the right boundary as the predominant effect of spontaneous combustion. Additionally, a sensitivity study shows that a more considerable pressure difference and coal-oxygen reaction heat contribute to promoting the coal temperature, while the activation energy has a slight effect. Moreover, an increase in coal-oxygen reaction heat and activation energy accelerates the oxygen consumption rate and thus causes a lower oxygen concentration. Overall, the results provide a basis for the prediction and prevention of coal seam spontaneous combustion.


2021 ◽  
pp. 139073
Author(s):  
N.V. Panchenko ◽  
V.A. Bogdanovskaya ◽  
T.L. Kulova ◽  
G.A. Kirakosyan ◽  
I.A. Zamilatskov ◽  
...  

Author(s):  
Zhuang Sun ◽  
Xiaohui Zhao ◽  
Wujie Qiu ◽  
Chushu Yang ◽  
Osamu Yamamoto ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document