Evan E. Hughes, H. Ezzat Khalifa

Research output: Chapter in Book/Entry/PoemConference contribution


Results of an analysis of alternative power cycles for wellhead geothermal generating units are presented. The thermodynamic analysis of 240 power cycles was performed in order to identify optimum or near-optimum cycles for wellhead power plants over a wide range of geothermal resource temperatures. In addition to calculations of the efficiencies expected of practical cycles, the analysis included the characterization of various working fluids at each major state point in a power cycle. Characteristics of working fluids and power cycles expected to be near-optimum for resource temperatures of 200, 300, 400, 500, and 600 degree F (93, 149, 204, 260, and 316 degree C) are presented.

Original languageEnglish (US)
Title of host publicationProceedings of the Intersociety Energy Conversion Engineering Conference
Number of pages6
ISBN (Print)0894481150
StatePublished - 1984

Publication series

NameProceedings of the Intersociety Energy Conversion Engineering Conference
ISSN (Print)0146-955X

ASJC Scopus subject areas

  • Fuel Technology
  • Electrical and Electronic Engineering


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