NDLI: Geothermal heat recovery from abandoned mines: a systematic review of projects implemented worldwide and a methodology for screening new projects

Content Provider	Springer Nature Link
Author	Peralta Ramos, Esmeralda Breede, Katrin Falcone, Gioia
Copyright Year	2015
Abstract	Due to the increasing energy demand worldwide and the resulting rising costs of conventional fuels, alternative energy sources could play a significant role towards global energy sustainability. Geothermal near-surface systems based on heat pumps have already proved to be a feasible option for the heating and cooling of buildings, while offering low CO$_{2}$ footprint. In this study, the concept of using abandoned mines for geothermal heat recovery with either closed- or open-loop configurations is systematically reviewed based on 18 projects worldwide. Key engineering parameters such as temperature on depth, circulation flow rate, mine water quality, and end-users’ location and demand have been used to characterize and classify the different projects. The study shows that the projects significantly differ from one another, thus highlighting the attractive versatility of this geothermal concept. A key outcome of this work is the development of a systematic procedure to evaluate future projects, followed by an example of a preliminary system design for a synthetic case scenario in the Harz region in Germany. After China’s energy administration’s recent announcement that the country will close 1,725 small-scale coal mines over the course of 2014 and considering the alarming levels of air pollution in the country, the concept of geothermal heat recovery from abandoned mines could become even more significant in the near future.
Starting Page	6783
Ending Page	6795
Page Count	13
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	73
Issue Number	11
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Waste heat Geothermal energy Abandoned mines District heating Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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