Citation

Che Q, Shu Z, Zhou X, Wang H. Procedia Eng. 2011; 26: 204-210.

Copyright

(Copyright © 2011, Elsevier Publishing)

DOI

10.1016/j.proeng.2011.11.2159

PMID

unavailable

Abstract

Residual coal in goaf easily causes spontaneous combustion, and provides a long-term existence fire source, then easily leads to secondary gas explosion. This paper has a systematic study on the laws of gas flow and heat transfer in goaf pre-and post residual coal spontaneous combustion by numerical simulation. Multi-field coupling changed laws of gas-air mixed gas 3D seepage field, concentration field and temperature field pre-and post residual coal spontaneous combustion in goaf have been obtained by discreting mathematical model equations. The numerical simulation results coincide well with site observation data.