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Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018020029
pages 827-845

PREDICTION OF SELF-IGNITION FIRE PROPAGATION AND COAL LOSS IN AN INCLINED SEAM

Yanming Wang
School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, China; Department of Mechanical and Aerospace Engineering, Rutgers, State University of New Jersey, Piscataway, NJ 08854, USA
Xueqin Li
School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, China
Zhixiong Guo
Rutgers University

Краткое описание

The thermochemical processes of spontaneous combustion of coal in an inclined outcrop seam were investigated in order to understand the underground mineral self-ignition, fire propagation, and the loss of reserves. A heat and mass transfer model of porous coal-bearing stratum was employed, combining convection and radiation with a transient exothermic source which is coupled with coal oxidation, oxygen supply, and fuel consumption. It is found that spontaneous combustion firstly occurs under lean oxygen condition. Fire development controlled by the reaction heat release in the early oxidation process shifts to oxygen restriction after coal self-ignition. The stratum porosity significantly affects the fire propagation. The fire propagation rate slightly increases as the inclined angle decreases. Compared with indirect surface survey, the predicted loss of reverses is more reasonable; thus, the present model could provide a useful reference to loss estimation in coal fire hazards.


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