Direct contact heat exchanger 10 kW power loop

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The extraction of thermal energy for electric power generation from moderate (350 F) temperature geothermal brines, such as those found in East Mesa, California, appears feasible. In exploiting these moderate temperature resources, the use of a direct-contact process in a conventional Rankine cycle with a turbine-generator seems like a very promising configuration. While the direct contact approach, in which the brine and hydrocarbon working fluid come into physical contact, has initial economic advantages (e.g., lower capital cost of heat exchanger equipment), it also has some potential operating disadvantages such as CO{sub 2} buildup, turbine scaling and erosion, and hydrocarbon loss. ... continued below

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Creator: Unknown. July 1, 1979.

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Description

The extraction of thermal energy for electric power generation from moderate (350 F) temperature geothermal brines, such as those found in East Mesa, California, appears feasible. In exploiting these moderate temperature resources, the use of a direct-contact process in a conventional Rankine cycle with a turbine-generator seems like a very promising configuration. While the direct contact approach, in which the brine and hydrocarbon working fluid come into physical contact, has initial economic advantages (e.g., lower capital cost of heat exchanger equipment), it also has some potential operating disadvantages such as CO{sub 2} buildup, turbine scaling and erosion, and hydrocarbon loss. In order t o identify and evaluate these problem areas, a 10 kW Power Loop was set up and run at East Mesa, California, under DOE funding. This report includes the results and conclusions of Test Series 1 and 2 performed between December 1976 and July 1978, as well as the Executive Summary of the total testing effort. It has been reprinted directly from copy provided by Barber-Nichols Engineering Co.

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  • Report No.: LBL-7036
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/892749 | External Link
  • Office of Scientific & Technical Information Report Number: 892749
  • Archival Resource Key: ark:/67531/metadc882556

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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 1, 1979

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 5, 2016, 2:20 p.m.

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Direct contact heat exchanger 10 kW power loop, report, July 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc882556/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.