Clean power generation from the intractable natural coalfield fires: turn harm into benefit

Shi, Bobo, Su, Hetao, Li, Jinshi, Qi, Haining, Zhou, Fubao, Torero, José L. and Chen, Zhongwei (2017) Clean power generation from the intractable natural coalfield fires: turn harm into benefit. Scientific Reports, 7 1: 5302.1-5302.5. doi:10.1038/s41598-017-05622-4

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Author Shi, Bobo
Su, Hetao
Li, Jinshi
Qi, Haining
Zhou, Fubao
Torero, José L.
Chen, Zhongwei
Title Clean power generation from the intractable natural coalfield fires: turn harm into benefit
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2017-07-13
Sub-type Article (original research)
DOI 10.1038/s41598-017-05622-4
Open Access Status DOI
Volume 7
Issue 1
Start page 5302.1
End page 5302.5
Total pages 5
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Language eng
Subject 1000 General
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 ~1000GW 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 174.6W. 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.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
School of Mechanical & Mining Engineering Publications
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Created: Fri, 14 Jul 2017, 22:12:44 EST by Zhongwei Chen on behalf of School of Mechanical and Mining Engineering