Flooded Underground Coal Mines: A Significant Source of Inexpensive Geothermal Energy

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Description

Many mining regions in the United States contain extensive areas of flooded underground mines. The water within these mines represents a significant and widespread opportunity for extracting low-grade, geothermal energy. Based on current energy prices, geothermal heat pump systems using mine water could reduce the annual costs for heating to over 70 percent compared to conventional heating methods (natural gas or heating oil). These same systems could reduce annual cooling costs by up to 50 percent over standard air conditioning in many areas of the country. (Formatted full-text version is released by permission of publisher)

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Watzlaf, G.R. & Ackman, T.E. April 1, 2007.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times , with 5 in the last month . More information about this article can be viewed below.

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Description

Many mining regions in the United States contain extensive areas of flooded underground mines. The water within these mines represents a significant and widespread opportunity for extracting low-grade, geothermal energy. Based on current energy prices, geothermal heat pump systems using mine water could reduce the annual costs for heating to over 70 percent compared to conventional heating methods (natural gas or heating oil). These same systems could reduce annual cooling costs by up to 50 percent over standard air conditioning in many areas of the country. (Formatted full-text version is released by permission of publisher)

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4-8

Notes

Entire issue is available full-text at http://ces.ca.uky.edu/asmr/Magazine/ASMR_Is1_Binder.pdf

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  • Journal Name: Reclamation Matters; Journal Volume: 3; Journal Issue: 2 (but issue 1 for 2007)

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  • Report No.: DOE/NETL-IR-2007-060
  • Grant Number: None cited
  • Office of Scientific & Technical Information Report Number: 912831
  • Archival Resource Key: ark:/67531/metadc889446

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 4, 2016, 2:02 p.m.

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Watzlaf, G.R. & Ackman, T.E. Flooded Underground Coal Mines: A Significant Source of Inexpensive Geothermal Energy, article, April 1, 2007; (digital.library.unt.edu/ark:/67531/metadc889446/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.