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Title: Defeat the dragon: coal fires between self ignition and fire fighting

Abstract

Spontaneous coal fires in near surface coal seams are a worldwide recognized problem. They are destroying coal resources and emit climate relevant gases both in considerable amounts. While the extinction of such fires is a most desirable goal, the estimation of the actual input of greenhouse gases into the atmosphere is of great interest especially in the context of the Kyoto protocol as such values are needed as baseline for the Clean Development Mechanism (CDM) policies. Under the framework of the Sino-German coal-fire research project we are developing numerical models of such coal fires for the operational use in fire fighting campaigns. Based on our understanding of the governing physical and chemical processes that are relevant for the whole combustion process we simulate the coal fire spreading along the seams for typical situations. From these scenario calculations we deduce information needed to support the CDM baseline estimation and to assess the progress of fire extinguishing efforts like water injection and surface covering to dissipate the heat and suffocate the fire. We present case studies using the finite-element-code ROCKFLOW applied to realistic geometries based on field observations in the Shenhua Group Coal Mining Area Wuda (Inner Mongolia, PR China).

Authors:
; ;
Publication Date:
OSTI Identifier:
21149661
Resource Type:
Journal Article
Resource Relation:
Journal Name: Proceedings of Symposium on the Application of Geophysics to Engineering and Environmental Problems; Journal Volume: 20; Journal Issue: 1; Conference: 20. symposium on the application of geophysics to engineering and environmental problems, Denver, CO (USA), 1-5 Apr 2007
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL SEAMS; COAL MINES; FIRES; CHINA; SPONTANEOUS COMBUSTION; IGNITION; FIRE FIGHTING; UNDERGROUND

Citation Formats

Manfred W. Wuttke, Stefan Wessling, and Winfried Kessels. Defeat the dragon: coal fires between self ignition and fire fighting. United States: N. p., 2007. Web.
Manfred W. Wuttke, Stefan Wessling, & Winfried Kessels. Defeat the dragon: coal fires between self ignition and fire fighting. United States.
Manfred W. Wuttke, Stefan Wessling, and Winfried Kessels. Mon . "Defeat the dragon: coal fires between self ignition and fire fighting". United States. doi:.
@article{osti_21149661,
title = {Defeat the dragon: coal fires between self ignition and fire fighting},
author = {Manfred W. Wuttke and Stefan Wessling and Winfried Kessels},
abstractNote = {Spontaneous coal fires in near surface coal seams are a worldwide recognized problem. They are destroying coal resources and emit climate relevant gases both in considerable amounts. While the extinction of such fires is a most desirable goal, the estimation of the actual input of greenhouse gases into the atmosphere is of great interest especially in the context of the Kyoto protocol as such values are needed as baseline for the Clean Development Mechanism (CDM) policies. Under the framework of the Sino-German coal-fire research project we are developing numerical models of such coal fires for the operational use in fire fighting campaigns. Based on our understanding of the governing physical and chemical processes that are relevant for the whole combustion process we simulate the coal fire spreading along the seams for typical situations. From these scenario calculations we deduce information needed to support the CDM baseline estimation and to assess the progress of fire extinguishing efforts like water injection and surface covering to dissipate the heat and suffocate the fire. We present case studies using the finite-element-code ROCKFLOW applied to realistic geometries based on field observations in the Shenhua Group Coal Mining Area Wuda (Inner Mongolia, PR China).},
doi = {},
journal = {Proceedings of Symposium on the Application of Geophysics to Engineering and Environmental Problems},
number = 1,
volume = 20,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}