Comparison of geothermal energy with coal, oil, and natural gas for selected uses

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Environmental effects and energy efficiencies for geothermal energy, western strip-mined coal, and eastern underground mined coal applied to space heating, process heat, and electric drive were compared. The measure of an environmental effect is the amount of residual material released to the environment, and the measure of energy efficiency is the second law efficiency of the process involved. The results indicate that geothermal energy efficiencies (second law) are higher than those for coal for all three end uses. The environmental effects for geothermal supply systems are smaller than those for coal in the cases of space heat and process heat ... continued below

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Pages: 102

Creation Information

Hinman, G.W. & Robertson, J. July 7, 1978.

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Description

Environmental effects and energy efficiencies for geothermal energy, western strip-mined coal, and eastern underground mined coal applied to space heating, process heat, and electric drive were compared. The measure of an environmental effect is the amount of residual material released to the environment, and the measure of energy efficiency is the second law efficiency of the process involved. The results indicate that geothermal energy efficiencies (second law) are higher than those for coal for all three end uses. The environmental effects for geothermal supply systems are smaller than those for coal in the cases of space heat and process heat and are comparable in the case of electric drive. The optimum allocation of a finite geothermal resource and a finite coal resource between space heat and electric drive has been evaluated from the viewpoint of maximum end use service. The results indicate that, to the extent that locational factors permit, geothermal energy should be used for space heat and coal for electric drive.

Physical Description

Pages: 102

Notes

Dep. NTIS, PC A06/MF A01.

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  • Report No.: DOE/ET/27139-1
  • Report No.: RLO-2221-T14-1
  • Grant Number: EY-76-S-06-2221-014
  • DOI: 10.2172/6163474 | External Link
  • Office of Scientific & Technical Information Report Number: 6163474
  • Archival Resource Key: ark:/67531/metadc1114502

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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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Creation Date

  • July 7, 1978

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

Description Last Updated

  • March 22, 2018, 2:55 p.m.

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Hinman, G.W. & Robertson, J. Comparison of geothermal energy with coal, oil, and natural gas for selected uses, report, July 7, 1978; United States. (digital.library.unt.edu/ark:/67531/metadc1114502/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.