Energy and exergy analysis of olkaria domes field: Well head and single flash power plants comparison

Alvin Kiprono Bett, Saeid Jalilinasrabady, Leonard K. Langat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Kenya is ranked 5th globally in geothermal development. Geothermal exploration started around 1950's in Olkaria and Bogoria. In power plant development, the main parameters applied are power generated and exergy, among others. Well head installation in Olkaria was adopted in 2012 has a total installed capacity of 81 MWe. The well head units in Olkaria are all single flash type. Single flash are the main power plants globally. In this study exergy analysis and parametric comparison of conventional single flash generating 142 MWe and well head of 7 MWe is presented. The plants are optimized based on maximum power generated, highest efficiencies and lower parasitic loads with the focus on the non-condensable gas removal. The obtained results show that well head and single flash operates in the same trend with different optimization objectives. Well head has the best exergy efficiency at 64% and least exergy destroyed in the separator.

Original languageEnglish
Title of host publicationGeothermal Resources Council Virtual Annual Meeting and Expo, GRC 2020
Subtitle of host publicationClean, Renewable and Always On
PublisherGeothermal Resources Council
Pages980-989
Number of pages10
ISBN (Electronic)9781713822097
Publication statusPublished - 2020
EventGeothermal Resources Council Virtual Annual Meeting and Expo: Clean, Renewable and Always On, GRC 2020 - Virtual, Online
Duration: Oct 19 2020Oct 23 2020

Publication series

NameTransactions - Geothermal Resources Council
Volume44
ISSN (Print)0193-5933

Conference

ConferenceGeothermal Resources Council Virtual Annual Meeting and Expo: Clean, Renewable and Always On, GRC 2020
CityVirtual, Online
Period10/19/2010/23/20

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

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