Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia

Sathiabama T. Thirugnana (), Abu Bakar Jaafar, Srithar Rajoo, Ahmad Aiman Azmi, Hariharan Jai Karthikeyan, Takeshi Yasunaga, Tsutomu Nakaoka, Hesam Kamyab (), Shreeshivadasan Chelliapan and Yasuyuki Ikegami
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Sathiabama T. Thirugnana: Razak Faculty of Technology and Informatics & UTM Ocean Thermal Energy Centre, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Abu Bakar Jaafar: Razak Faculty of Technology and Informatics & UTM Ocean Thermal Energy Centre, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Srithar Rajoo: UTM Centre for Low Carbon Transport (LoCARtic), Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia
Ahmad Aiman Azmi: Institute of Ocean Energy, Saga University, Imari 840-0027, Japan
Hariharan Jai Karthikeyan: Razak Faculty of Technology and Informatics & UTM Ocean Thermal Energy Centre, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Takeshi Yasunaga: Institute of Ocean Energy, Saga University, Imari 840-0027, Japan
Tsutomu Nakaoka: Institute of Ocean Energy, Saga University, Imari 840-0027, Japan
Hesam Kamyab: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia
Shreeshivadasan Chelliapan: Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jln Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia
Yasuyuki Ikegami: Institute of Ocean Energy, Saga University, Imari 840-0027, Japan

Sustainability, 2023, vol. 15, issue 4, 1-18

Abstract: Ocean thermal energy conversion (OTEC) is a solution for environmental and climate change issues in the tropics. The OTEC potential in Malaysia using ocean conditions and bathymetry data has been previously studied and demonstrated. Following this, it is vital to perform a basic performance analysis of a 10 MW Rankine Cycle OTEC plant using the Malaysian ocean conditions. In this paper, the results of heat and mass balance will be reported for a 10 MW Rankine cycle OTEC plant which uses heat exchangers of plate-type and anhydrous ammonia as its working fluid. The value of a minimum objective function (γ) is derived by total heat surface area (A T ) divided by the net power (P N ). γ decreases when the inlet temperature difference (inlet temperature of warm seawater (T WSWI )—inlet temperature of cold seawater (T CSWI )) increases. P N is clarified to be approximately 70–80% of the P G (gross power) using Malaysian ocean conditions.

Keywords: steepest descent; Rankine cycle; OTEC; plate type; ammonia (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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