Simulation on Spontaneous Combustion of Goaf under “U” Type Ventilation and Improvement

Authors

Tiejun Cui, 1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China; ;2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin Liaoning 123000, China; ;3. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;
Yundong Ma, 3. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China; ;
Laigui Wang, 4. School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China;

Abstract

Abstract: To understand the change of temperature and heating area, in different time, in the process of spontaneous combustion of goaf under “U” type ventilation, the model was proposed based on the theory of particle flow. The three basic problems of Oxygen equivalent flow and reaction with the coal were solved, and implemented with FISH. According to the actual working condition, the heating process was simulated, which could be divided into three stages, and the characteristics of the six warming development time were analyzed, finding that the heating area change was related with the oxygen flow in the process of spontaneous combustion of coal. Collection of the six time of heritage coal actual temperature, and the difference between these and simulation results were analyzed; It was generated that the coal seam crack considering cutting coal should also be additional. The improved model results still exist certain differences with the actual heating area change, but in terms of the relationship between the heating time and temperature is more accurate, the spread of degree of heating area is much closer to the truth.

Recommended Citation

Cui, Tiejun; Ma, Yundong; and Wang, Laigui (2020) "Simulation on Spontaneous Combustion of Goaf under “U” Type Ventilation and Improvement," Journal of System Simulation: Vol. 27: Iss. 12, Article 32.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss12/32

First Page

3096

Revised Date

2014-12-14

DOI Link

https://doi.org/

Last Page

3101

CLC

X936

Recommended Citation

Cui Tiejun, Ma Yundong, Wang Laigui. Simulation on Spontaneous Combustion of Goaf under “U” Type Ventilation and Improvement[J]. Journal of System Simulation, 2015, 27(12): 3096-3101.