Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space

ABSTRACT When the coal mine fire occurs, it is crucial to judge the fire combustion state by analyzing indicator gases concentration and changing trends of various gas ratios in order to formulate proper rescue measures. It's an effective methodology to estimate the changes of combustion state...

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Main Authors: Baiwei Lei, Bing Wu, Xuyang Wang
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar)
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000200704&lng=en&tlng=en
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author Baiwei Lei
Bing Wu
Xuyang Wang
author_facet Baiwei Lei
Bing Wu
Xuyang Wang
author_sort Baiwei Lei
collection DOAJ
description ABSTRACT When the coal mine fire occurs, it is crucial to judge the fire combustion state by analyzing indicator gases concentration and changing trends of various gas ratios in order to formulate proper rescue measures. It's an effective methodology to estimate the changes of combustion state in coal mine fire accurately by the trends analysis of indicator gases and gas ratios independent of the external environment disturbs, such as air leakage and inner gases injection. However, there are few experimental researches about the changing rules of indicator gases and gas ratios at different combustion phases at present. Therefore, this paper has established a small-sized coal combustion experimental platform in confined space, on which the experimental studies on variation trends about indicator gases and gas ratios of the whole combustion phases are conducted. The experiment results have shown that the coal combustion trends could be accurately estimated by analyzing the relationship between indicator gases and gas ratios among different combustion phases. In the end of this paper, the conclusions are verified by a real coal mine fire disaster relief case, and the practical results are in agreement with the experimental analysis.
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spelling doaj.art-95acf331530846578bdfe393cf979db92022-12-22T03:31:53ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1678-432459spe10.1590/1678-4324-2016160544S1516-89132016000200704Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined SpaceBaiwei LeiBing WuXuyang WangABSTRACT When the coal mine fire occurs, it is crucial to judge the fire combustion state by analyzing indicator gases concentration and changing trends of various gas ratios in order to formulate proper rescue measures. It's an effective methodology to estimate the changes of combustion state in coal mine fire accurately by the trends analysis of indicator gases and gas ratios independent of the external environment disturbs, such as air leakage and inner gases injection. However, there are few experimental researches about the changing rules of indicator gases and gas ratios at different combustion phases at present. Therefore, this paper has established a small-sized coal combustion experimental platform in confined space, on which the experimental studies on variation trends about indicator gases and gas ratios of the whole combustion phases are conducted. The experiment results have shown that the coal combustion trends could be accurately estimated by analyzing the relationship between indicator gases and gas ratios among different combustion phases. In the end of this paper, the conclusions are verified by a real coal mine fire disaster relief case, and the practical results are in agreement with the experimental analysis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000200704&lng=en&tlng=encoal combustionindicator gasesgas ratiostrend analysis
spellingShingle Baiwei Lei
Bing Wu
Xuyang Wang
Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
Brazilian Archives of Biology and Technology
coal combustion
indicator gases
gas ratios
trend analysis
title Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
title_full Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
title_fullStr Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
title_full_unstemmed Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
title_short Experimental Study on the Changing Rules of Coal Fire Indictor Gases of the Whole Combustion Phases in Confined Space
title_sort experimental study on the changing rules of coal fire indictor gases of the whole combustion phases in confined space
topic coal combustion
indicator gases
gas ratios
trend analysis
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000200704&lng=en&tlng=en
work_keys_str_mv AT baiweilei experimentalstudyonthechangingrulesofcoalfireindictorgasesofthewholecombustionphasesinconfinedspace
AT bingwu experimentalstudyonthechangingrulesofcoalfireindictorgasesofthewholecombustionphasesinconfinedspace
AT xuyangwang experimentalstudyonthechangingrulesofcoalfireindictorgasesofthewholecombustionphasesinconfinedspace