Effects of vaporizer and evaporative-condenser size on geofluid effectiveness and cost of electricity for geothermal binary power plants

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Description

A special study was conducted to investigate the influences of minimum approach temperature differences occurring in supercritical-heater/vaporizer and evaporative-condenser heat rejection systems on geothermal-electric binary power plant performance and cost of electricity. For the systems investigated optimum pinch points for minimizing cost of electricity were estimated to range from 5 to 7/sup 0/F for the heater vaporizer. The minimum approach of condensing temperature to wet-bulb temperature for evaporative condensers was estimated to be about 30/sup 0/F in order to achieve the lowest cost of electricity.

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Pages: 44

Creation Information

Demuth, O.J. October 1, 1983.

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  • EG & G Idaho
    Publisher Info: EG and G Idaho, Inc., Idaho Falls (USA)
    Place of Publication: Idaho Falls, Idaho

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Description

A special study was conducted to investigate the influences of minimum approach temperature differences occurring in supercritical-heater/vaporizer and evaporative-condenser heat rejection systems on geothermal-electric binary power plant performance and cost of electricity. For the systems investigated optimum pinch points for minimizing cost of electricity were estimated to range from 5 to 7/sup 0/F for the heater vaporizer. The minimum approach of condensing temperature to wet-bulb temperature for evaporative condensers was estimated to be about 30/sup 0/F in order to achieve the lowest cost of electricity.

Physical Description

Pages: 44

Notes

NTIS, PC A03/MF A01.

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  • Other: DE84002386
  • Report No.: EGG-GTH-6376
  • Grant Number: AC07-76ID01570
  • DOI: 10.2172/5612487 | External Link
  • Office of Scientific & Technical Information Report Number: 5612487
  • Archival Resource Key: ark:/67531/metadc1092508

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • October 1, 1983

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • June 1, 2018, 4:08 p.m.

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Demuth, O.J. Effects of vaporizer and evaporative-condenser size on geofluid effectiveness and cost of electricity for geothermal binary power plants, report, October 1, 1983; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc1092508/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.