Evaluation of the Impact of Off-Design Operation on an Air-Cooled Binary Power Plant

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Geothermal power plants are designed and constructed to provide a rated power output at specific resource and ambient conditions. Due to both diurnal and seasonal changes in the ambient air temperature, as well as a decline in resource productivity over time, plants seldom operate at these ''design'' conditions. This paper examines the impact of ''off- design'' operation of an air-cooled binary geothermal power plant. An available energy analysis is used to evaluate operation at these conditions. This evaluation identifies those portions of the power cycle that are most sensitive to changing resource and ambient conditions, as well as where improvements ... continued below

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348 Kilobytes pages

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Mines, G.L. June 17, 2002.

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Description

Geothermal power plants are designed and constructed to provide a rated power output at specific resource and ambient conditions. Due to both diurnal and seasonal changes in the ambient air temperature, as well as a decline in resource productivity over time, plants seldom operate at these ''design'' conditions. This paper examines the impact of ''off- design'' operation of an air-cooled binary geothermal power plant. An available energy analysis is used to evaluate operation at these conditions. This evaluation identifies those portions of the power cycle that are most sensitive to changing resource and ambient conditions, as well as where improvements in cycle component or system performance would have the largest impact in increasing power output.

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348 Kilobytes pages

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OSTI as DE00797777

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  • Geothermal Resources Council Annual Meeting, Reno, NV (US), 09/22/2002--09/25/2002

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  • Report No.: INEEL/CON-02-00793
  • Grant Number: AC07-99ID13727
  • Office of Scientific & Technical Information Report Number: 797777
  • Archival Resource Key: ark:/67531/metadc743045

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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.

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  • June 17, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 27, 2016, 2:53 p.m.

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Mines, G.L. Evaluation of the Impact of Off-Design Operation on an Air-Cooled Binary Power Plant, article, June 17, 2002; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc743045/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.