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Geo-Ocean Thermal Energy Conversion (GeOTEC) power cycle/plant

Author

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  • Mohd Idrus, N.H.
  • Musa, M.N.
  • Yahya, W.J.
  • Ithnin, A.M.

Abstract

A new Rankine power cycle utilising a combination of ocean thermal energy and geothermal waste energy is proposed and thus called a GeOTEC (Geo-Ocean Thermal Energy Conversion) power cycle/plant. The potential geothermal waste heat, which exists in the form of raw hot natural gas is continuously pumped from a shallow water Malaysia-Thailand Joint Authority (MTJA) gas production platform, and the supply data is estimated based on the output of the platform. A thermodynamic model derived from an energy balance calculation is used to simulate the proposed GeOTEC cycle with Matlab. A capital cost estimation is performed for the proposed GeOTEC based on the commercially available components and manufacturing practices. With higher superheated ammonia temperature, GeOTEC power plant efficiency increases, while the net power output decreases. A maximum net power produced by the proposed GeOTEC is 32.593 MW with estimated capital cost of USD4,489/kW.

Suggested Citation

  • Mohd Idrus, N.H. & Musa, M.N. & Yahya, W.J. & Ithnin, A.M., 2017. "Geo-Ocean Thermal Energy Conversion (GeOTEC) power cycle/plant," Renewable Energy, Elsevier, vol. 111(C), pages 372-380.
    • Handle: RePEc:eee:renene:v:111:y:2017:i:c:p:372-380
    DOI: 10.1016/j.renene.2017.03.086
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    Cited by:

    1. Liu, Weimin & Xu, Xiaojian & Chen, Fengyun & Liu, Yanjun & Li, Shizhen & Liu, Lei & Chen, Yun, 2020. "A review of research on the closed thermodynamic cycles of ocean thermal energy conversion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).
    2. Hu, Zheng & Chen, Yongping & Zhang, Chengbin, 2024. "Role of R717 blends in ocean thermal energy conversion organic Rankine cycle," Renewable Energy, Elsevier, vol. 221(C).
    3. Guillermo Lopez & Maria de los Angeles Ortega Del Rosario & Arthur James & Humberto Alvarez, 2022. "Site Selection for Ocean Thermal Energy Conversion Plants (OTEC): A Case Study in Panama," Energies, MDPI, vol. 15(9), pages 1-24, April.
    4. Ma, Qingfen & Gao, Zezhou & Huang, Jie & Mahian, Omid & Feng, Xin & Lu, Hui & Wang, Shenghui & Wang, Chengpeng & Tang, Rongnian & Li, Jingru, 2023. "Thermodynamic analysis and turbine design of a 100 kW OTEC-ORC with binary non-azeotropic working fluid," Energy, Elsevier, vol. 263(PE).
    5. Xiao, Chenglong & Hu, Zheng & Chen, Yongping & Zhang, Chengbin, 2024. "Thermodynamic, economic, exergoeconomic analysis of an integrated ocean thermal energy conversion system," Renewable Energy, Elsevier, vol. 225(C).

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