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Natural and Artificial Methods for Regeneration of Heat Resources for Borehole Heat Exchangers to Enhance the Sustainability of Underground Thermal Storages: A Review

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Drilling and Geoengineering Department, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland
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Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, ON L1H 7K4, Canada
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Author to whom correspondence should be addressed.
Academic Editor: Andrew Kusiak
Sustainability 2015, 7(10), 13104-13125; https://doi.org/10.3390/su71013104
Received: 22 June 2015 / Revised: 11 September 2015 / Accepted: 18 September 2015 / Published: 25 September 2015
The concept of borehole heat exchanger (BHE) field exploitation is described, along with problems regarding the sustainability of heat resources in rock masses. A BHE field sometimes has problems with the stability of the heat carrier temperature during long-term exploitation. The main reason for this is an insufficient heat stream with which to transfer heat by conduction in rock. Possibilities for the regeneration of heat in rock masses, based on experiences at the Geoenergetics Laboratory (Drilling, Oil and Gas Faculty, AGH University of Science and Technology), are described. View Full-Text
Keywords: borehole heat exchanger; geoenergetics; heat pump; underground thermal energy storage keyword borehole heat exchanger; geoenergetics; heat pump; underground thermal energy storage keyword
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Sliwa, T.; Rosen, M.A. Natural and Artificial Methods for Regeneration of Heat Resources for Borehole Heat Exchangers to Enhance the Sustainability of Underground Thermal Storages: A Review. Sustainability 2015, 7, 13104-13125.

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