Cost study of superheating geothermal steam

James M. Hensler and Robert C. Axtmann

Energy, 1979, vol. 4, issue 3, 365-371

Abstract: This study compares the electrical generating costs for hybrid plants, in which fossil fuel superheats geothermal steam, with those for conventional dual-flash plants. Parameters varied in the analysis include the resource temperature and the geothermal gradient. In order to make the results generally useful, we have made conservative estimates of site-dependent variables. The results indicate that superheating can significantly improve the economic competitiveness of geothermal resources that would normally be considered uneconomical. In addition, superheat will increase total plant outputs markedly and enhance thermal efficiencies by 30–40%.

Date: 1979
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:4:y:1979:i:3:p:365-371

DOI: 10.1016/0360-5442(79)90063-X

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