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Performance simulation of solar-boosted ocean thermal energy conversion plant

Author

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  • Yamada, Noboru
  • Hoshi, Akira
  • Ikegami, Yasuyuki

Abstract

Ocean thermal energy conversion (OTEC) is a power generation method that utilizes small temperature difference between the warm surface water and cold deep water of the ocean. This paper describes the performance simulation results of an OTEC plant that utilizes not only ocean thermal energy but also solar thermal energy as a heat source. This power generation system was termed SOTEC (solar-boosted ocean thermal energy conversion). In SOTEC, the temperature of warm sea water was boosted by using a typical low-cost solar thermal collector. In order to estimate the potential thermal efficiency and required effective area of a solar collector for a 100-kWe SOTEC plant, first-order modeling and simulation were carried out under the ambient conditions at Kumejima Island in southern part of Japan. The results show that the proposed SOTEC plant can potentially enhance the annual mean net thermal efficiency up to a value that is approximately 1.5 times higher than that of the conventional OTEC plant if a single-glazed flat-plate solar collector of 5000-m2 effective area is installed to boost the temperature of warm sea water by 20K.

Suggested Citation

  • Yamada, Noboru & Hoshi, Akira & Ikegami, Yasuyuki, 2009. "Performance simulation of solar-boosted ocean thermal energy conversion plant," Renewable Energy, Elsevier, vol. 34(7), pages 1752-1758.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:7:p:1752-1758
    DOI: 10.1016/j.renene.2008.12.028
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    References listed on IDEAS

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    1. Cavrot, D.E., 1993. "Economics of Ocean Thermal Energy Conversion (OTEC)," Renewable Energy, Elsevier, vol. 3(8), pages 891-896.
    2. Lennard, D.E., 1995. "The viability and best locations for ocean thermal energy conversion systems around the world," Renewable Energy, Elsevier, vol. 6(3), pages 359-365.
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    Citations

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    Cited by:

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    2. Aydin, Hakan & Lee, Ho-Saeng & Kim, Hyeon-Ju & Shin, Seung Kyoon & Park, Keunhan, 2014. "Off-design performance analysis of a closed-cycle ocean thermal energy conversion system with solar thermal preheating and superheating," Renewable Energy, Elsevier, vol. 72(C), pages 154-163.
    3. Zhang, Jingzhi & Zhai, Xiaoyu & Li, Shizhen, 2020. "Numerical studies on the performance of ammonia ejectors used in ocean thermal energy conversion system," Renewable Energy, Elsevier, vol. 161(C), pages 766-776.
    4. Khan, N. & Kalair, A. & Abas, N. & Haider, A., 2017. "Review of ocean tidal, wave and thermal energy technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 590-604.
    5. Khosravi, A. & Syri, Sanna & Assad, M.E.H. & Malekan, M., 2019. "Thermodynamic and economic analysis of a hybrid ocean thermal energy conversion/photovoltaic system with hydrogen-based energy storage system," Energy, Elsevier, vol. 172(C), pages 304-319.
    6. Hammar, Linus & Ehnberg, Jimmy & Mavume, Alberto & Cuamba, Boaventura C. & Molander, Sverker, 2012. "Renewable ocean energy in the Western Indian Ocean," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 4938-4950.
    7. Hall, Kashawn & Kelly, Solange & Henry, Legena, 2022. "Site selection of Ocean Thermal Energy Conversion (OTEC) plants for Barbados," Renewable Energy, Elsevier, vol. 201(P2), pages 60-69.
    8. Hung, T.C. & Wang, S.K. & Kuo, C.H. & Pei, B.S. & Tsai, K.F., 2010. "A study of organic working fluids on system efficiency of an ORC using low-grade energy sources," Energy, Elsevier, vol. 35(3), pages 1403-1411.
    9. Kim, Do-Yeop & Kim, You-Taek, 2017. "Preliminary design and performance analysis of a radial inflow turbine for ocean thermal energy conversion," Renewable Energy, Elsevier, vol. 106(C), pages 255-263.
    10. Jung, Jung-Yeul & Lee, Ho Saeng & Kim, Hyeon-Ju & Yoo, Yungpil & Choi, Woo-Young & Kwak, Ho-Young, 2016. "Thermoeconomic analysis of an ocean thermal energy conversion plant," Renewable Energy, Elsevier, vol. 86(C), pages 1086-1094.
    11. Huo, Erguang & Chen, Wei & Deng, Zilong & Gao, Wei & Chen, Yongping, 2023. "Thermodynamic analysis and optimization of a combined cooling and power system using ocean thermal energy and solar energy," Energy, Elsevier, vol. 278(PA).
    12. Osorio, Andrés F. & Arias-Gaviria, Jessica & Devis-Morales, Andrea & Acevedo, Diego & Velasquez, Héctor Iván & Arango-Aramburo, Santiago, 2016. "Beyond electricity: The potential of ocean thermal energy and ocean technology ecoparks in small tropical islands," Energy Policy, Elsevier, vol. 98(C), pages 713-724.
    13. Geng, Donghan & Gao, Xiangjie, 2023. "Thermodynamic and exergoeconomic optimization of a novel cooling, desalination and power multigeneration system based on ocean thermal energy," Renewable Energy, Elsevier, vol. 202(C), pages 17-39.
    14. Wu, Zhixiang & Feng, Huijun & Chen, Lingen & Xie, Zhuojun & Cai, Cunguang, 2019. "Pumping power minimization of an evaporator in ocean thermal energy conversion system based on constructal theory," Energy, Elsevier, vol. 181(C), pages 974-984.
    15. Faizal, Mohammed & Ahmed, M. Rafiuddin, 2013. "Experimental studies on a closed cycle demonstration OTEC plant working on small temperature difference," Renewable Energy, Elsevier, vol. 51(C), pages 234-240.
    16. Zhang, Wei & Li, Ye & Wu, Xiaoni & Guo, Shihao, 2018. "Review of the applied mechanical problems in ocean thermal energy conversion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 93(C), pages 231-244.
    17. Yang, Min-Hsiung & Yeh, Rong-Hua, 2014. "Analysis of optimization in an OTEC plant using organic Rankine cycle," Renewable Energy, Elsevier, vol. 68(C), pages 25-34.
    18. Sun, Faming & Ikegami, Yasuyuki & Jia, Baoju, 2012. "A study on Kalina solar system with an auxiliary superheater," Renewable Energy, Elsevier, vol. 41(C), pages 210-219.

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