Hybrid Cooling for Geothermal Power Plants: Final ARRA Project Report

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Description

Many binary-cycle geothermal plants use air as the heat rejection medium. Usually this is accomplished by using an air-cooled condenser (ACC) system to condense the vapor of the working fluid in the cycle. Many air-cooled plants suffer a loss of production capacity of up to 50% during times of high ambient temperatures. Use of limited amounts of water to supplement the performance of ACCs is investigated. Deluge cooling is found to be one of the least-cost options. Limiting the use of water in such an application to less than one thousand operating hours per year can boost plant output during ... continued below

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32 p.

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Bharathan, D. June 1, 2013.

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Many binary-cycle geothermal plants use air as the heat rejection medium. Usually this is accomplished by using an air-cooled condenser (ACC) system to condense the vapor of the working fluid in the cycle. Many air-cooled plants suffer a loss of production capacity of up to 50% during times of high ambient temperatures. Use of limited amounts of water to supplement the performance of ACCs is investigated. Deluge cooling is found to be one of the least-cost options. Limiting the use of water in such an application to less than one thousand operating hours per year can boost plant output during critical high-demand periods while minimizing water use in binary-cycle geothermal power plants.

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32 p.

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  • Report No.: NREL/TP-5500-58024
  • Grant Number: AC36-08GO28308
  • DOI: 10.2172/1086347 | External Link
  • Office of Scientific & Technical Information Report Number: 1086347
  • Archival Resource Key: ark:/67531/metadc828115

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Creation Date

  • June 1, 2013

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • April 5, 2017, 6:21 p.m.

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Bharathan, D. Hybrid Cooling for Geothermal Power Plants: Final ARRA Project Report, report, June 1, 2013; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc828115/: accessed December 9, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.