Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit

Abstract The coal fires, a global catastrophe for hundreds of years, have been proved extremely difficult to control, and hit almost every coal-bearing area globally. Meanwhile, underground coal fires contain tremendous reservoir of geothermal energy. Approximately one billion tons of coal burns und...

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Autores principales:	Bobo Shi, Hetao Su, Jinshi Li, Haining Qi, Fubao Zhou, José L. Torero, Zhongwei Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/11f6082432644798aff0611443c036cd
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spelling	oai:doaj.org-article:11f6082432644798aff0611443c036cd2021-12-02T16:06:08ZClean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit10.1038/s41598-017-05622-42045-2322https://doaj.org/article/11f6082432644798aff0611443c036cd2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05622-4https://doaj.org/toc/2045-2322Abstract The coal fires, a global catastrophe for hundreds of years, have been proved extremely difficult to control, and hit almost every coal-bearing area globally. Meanwhile, underground coal fires contain tremendous reservoir of geothermal energy. Approximately one billion tons of coal burns underground annually in the world, which could generate ~1000 GW per annum. A game-changing approach, environmentally sound thermal energy extraction from the intractable natural coalfield fires, is being developed by utilizing the waste energy and reducing the temperature of coalfield fires at the same time. Based on the Seebeck effect of thermoelectric materials, the temperature difference between the heat medium and cooling medium was employed to directly convert thermal energy into clean electrical energy. By the time of December 2016, the power generation from a single borehole at Daquan Lake fire district in Xinjiang has been exceeded 174.6 W. The field trial demonstrates that it is possible to exploit and utilize the waste heat resources in the treated coal fire areas. It promises a significant impact on the structure of global energy generation and can also promote progress in thermoelectric conversion materials, geothermal exploration, underground coal fires control and other energy related areas.Bobo ShiHetao SuJinshi LiHaining QiFubao ZhouJosé L. ToreroZhongwei ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bobo Shi Hetao Su Jinshi Li Haining Qi Fubao Zhou José L. Torero Zhongwei Chen Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
description	Abstract The coal fires, a global catastrophe for hundreds of years, have been proved extremely difficult to control, and hit almost every coal-bearing area globally. Meanwhile, underground coal fires contain tremendous reservoir of geothermal energy. Approximately one billion tons of coal burns underground annually in the world, which could generate ~1000 GW per annum. A game-changing approach, environmentally sound thermal energy extraction from the intractable natural coalfield fires, is being developed by utilizing the waste energy and reducing the temperature of coalfield fires at the same time. Based on the Seebeck effect of thermoelectric materials, the temperature difference between the heat medium and cooling medium was employed to directly convert thermal energy into clean electrical energy. By the time of December 2016, the power generation from a single borehole at Daquan Lake fire district in Xinjiang has been exceeded 174.6 W. The field trial demonstrates that it is possible to exploit and utilize the waste heat resources in the treated coal fire areas. It promises a significant impact on the structure of global energy generation and can also promote progress in thermoelectric conversion materials, geothermal exploration, underground coal fires control and other energy related areas.
format	article
author	Bobo Shi Hetao Su Jinshi Li Haining Qi Fubao Zhou José L. Torero Zhongwei Chen
author_facet	Bobo Shi Hetao Su Jinshi Li Haining Qi Fubao Zhou José L. Torero Zhongwei Chen
author_sort	Bobo Shi
title	Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
title_short	Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
title_full	Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
title_fullStr	Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
title_full_unstemmed	Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit
title_sort	clean power generation from the intractable natural coalfield fires: turn harm into benefit
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/11f6082432644798aff0611443c036cd
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Clean Power Generation from the Intractable Natural Coalfield Fires: Turn Harm into Benefit

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