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Performance evaluation of a single-flash geothermal power plant in Denizli, Turkey

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  • Cerci, Y.

Abstract

The performance of an 11.4 MW single-flash geothermal power plant in Denizli, Turkey, along with major plant components, was evaluated by using exergy analysis based on actual plant operation data. The geothermal power plant operation is described by following the flow of the geofluid, and the exergies of the geofluid at major plant locations are calculated and presented in tables. Exergy destruction from the wellhead to the discharge of steam is quantified and illustrated using an exergy flow diagram. Major exergy destructions occurred due to the separation of steam from the geofluid, the discharge of the brine from the separator, turbine, generator and compressor inefficiencies, and the discharge of steam to the environment. The largest exergy destruction occurred during the discharge of the brine into the Menderes river. This amounted to 46.9% of the total energy input. The second law efficiency of the plant was calculated to be 20.8%. The comparison of the efficiency with other geothermal power plants revealed that the plant efficiency is low, and therefore alternative designs were investigated to improve its performance.

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  • Cerci, Y., 2003. "Performance evaluation of a single-flash geothermal power plant in Denizli, Turkey," Energy, Elsevier, vol. 28(1), pages 27-35.
    • Handle: RePEc:eee:energy:v:28:y:2003:i:1:p:27-35
    DOI: 10.1016/S0360-5442(02)00093-2
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    References listed on IDEAS

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    1. Tekin, Taner & Bayramoǧlu, Mahmut, 2001. "Exergy and structural analysis of raw juice production and steam-power units of a sugar production plant," Energy, Elsevier, vol. 26(3), pages 287-297.
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    1. Gökgedik, Harun & Yürüsoy, Muhammet & Keçebaş, Ali, 2016. "Improvement potential of a real geothermal power plant using advanced exergy analysis," Energy, Elsevier, vol. 112(C), pages 254-263.
    2. Wang, Jiangfeng & Dai, Yiping & Gao, Lin, 2009. "Exergy analyses and parametric optimizations for different cogeneration power plants in cement industry," Applied Energy, Elsevier, vol. 86(6), pages 941-948, June.
    3. Davis, Adelina P. & Michaelides, Efstathios E., 2009. "Geothermal power production from abandoned oil wells," Energy, Elsevier, vol. 34(7), pages 866-872.
    4. Ozgener, Leyla & Hepbasli, Arif & Dincer, Ibrahim, 2007. "A key review on performance improvement aspects of geothermal district heating systems and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(8), pages 1675-1697, October.
    5. Hepbasli, Arif, 2008. "A key review on exergetic analysis and assessment of renewable energy resources for a sustainable future," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(3), pages 593-661, April.
    6. Hepbasli, Arif & Ozgener, Leyla, 2004. "Development of geothermal energy utilization in Turkey: a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 8(5), pages 433-460, October.
    7. Li, Hongyang & Rane, Sham & Yu, Zhibin, 2021. "Investigation of the performance and flow characteristics of two-phase reaction turbines in total flow geothermal systems," Renewable Energy, Elsevier, vol. 175(C), pages 345-372.
    8. Luo, Chao & Huang, Lichang & Gong, Yulie & Ma, Weibin, 2012. "Thermodynamic comparison of different types of geothermal power plant systems and case studies in China," Renewable Energy, Elsevier, vol. 48(C), pages 155-160.
    9. Vaccari, Marco & Pannocchia, Gabriele & Tognotti, Leonardo & Paci, Marco & Bonciani, Roberto, 2020. "A rigorous simulation model of geothermal power plants for emission control," Applied Energy, Elsevier, vol. 263(C).
    10. Etemoglu, A.B. & Can, M., 2007. "Classification of geothermal resources in Turkey by exergy analysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(7), pages 1596-1606, September.
    11. Rašković, Predrag & Guzović, Zvonimir & Cvetković, Svetislav, 2013. "Performance analysis of electricity generation by the medium temperature geothermal resources: Velika Ciglena case study," Energy, Elsevier, vol. 54(C), pages 11-31.
    12. Nian, Yong-Le & Cheng, Wen-Long, 2018. "Insights into geothermal utilization of abandoned oil and gas wells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 87(C), pages 44-60.
    13. Ganjehsarabi, Hadi & Gungor, Ali & Dincer, Ibrahim, 2012. "Exergetic performance analysis of Dora II geothermal power plant in Turkey," Energy, Elsevier, vol. 46(1), pages 101-108.
    14. Keçebaş, Ali & Gökgedik, Harun, 2015. "Thermodynamic evaluation of a geothermal power plant for advanced exergy analysis," Energy, Elsevier, vol. 88(C), pages 746-755.
    15. Unverdi, Murat & Cerci, Yunus, 2013. "Performance analysis of Germencik Geothermal Power Plant," Energy, Elsevier, vol. 52(C), pages 192-200.
    16. Kaiyong Hu & Jialing Zhu & Wei Zhang & Xinli Lu, 2016. "A Selection Method for Power Generation Plants Used for Enhanced Geothermal Systems (EGS)," Energies, MDPI, vol. 9(8), pages 1-12, July.

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