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

Thirugnana, Sathiabama T.; Jaafar, Abu Bakar; Rajoo, Srithar; Azmi, Ahmad Aiman; Karthikeyan, Hariharan Jai; Yasunaga, Takeshi; Nakaoka, Tsutomu; Kamyab, Hesam; Chelliapan, Shreeshivadasan; Ikegami, Yasuyuki

doi:10.3390/su15043777

Open AccessArticle

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

by

Sathiabama T. Thirugnana

^1,*,

Abu Bakar Jaafar

¹,

Srithar Rajoo

²,

Ahmad Aiman Azmi

³,

Hariharan Jai Karthikeyan

¹,

Takeshi Yasunaga

³

,

Tsutomu Nakaoka

³,

Hesam Kamyab

^4,5,*

,

Shreeshivadasan Chelliapan

⁶

and

Yasuyuki Ikegami

³

¹

Razak Faculty of Technology and Informatics & UTM Ocean Thermal Energy Centre, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia

²

UTM Centre for Low Carbon Transport (LoCARtic), Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia

³

Institute of Ocean Energy, Saga University, Imari 840-0027, Japan

⁴

Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia

⁵

Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India

⁶

Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jln Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia

^*

Authors to whom correspondence should be addressed.

Sustainability 2023, 15(4), 3777; https://doi.org/10.3390/su15043777

Submission received: 28 November 2022 / Revised: 23 January 2023 / Accepted: 14 February 2023 / Published: 18 February 2023

(This article belongs to the Special Issue Circular Economy and Clean Technology for a Sustainable Future)

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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

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MDPI and ACS Style

Thirugnana, S.T.; Jaafar, A.B.; Rajoo, S.; Azmi, A.A.; Karthikeyan, H.J.; Yasunaga, T.; Nakaoka, T.; Kamyab, H.; Chelliapan, S.; Ikegami, Y. Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia. Sustainability 2023, 15, 3777. https://doi.org/10.3390/su15043777

AMA Style

Thirugnana ST, Jaafar AB, Rajoo S, Azmi AA, Karthikeyan HJ, Yasunaga T, Nakaoka T, Kamyab H, Chelliapan S, Ikegami Y. Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia. Sustainability. 2023; 15(4):3777. https://doi.org/10.3390/su15043777

Chicago/Turabian Style

Thirugnana, Sathiabama T., Abu Bakar Jaafar, Srithar Rajoo, Ahmad Aiman Azmi, Hariharan Jai Karthikeyan, Takeshi Yasunaga, Tsutomu Nakaoka, Hesam Kamyab, Shreeshivadasan Chelliapan, and Yasuyuki Ikegami. 2023. "Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia" Sustainability 15, no. 4: 3777. https://doi.org/10.3390/su15043777

APA Style

Thirugnana, S. T., Jaafar, A. B., Rajoo, S., Azmi, A. A., Karthikeyan, H. J., Yasunaga, T., Nakaoka, T., Kamyab, H., Chelliapan, S., & Ikegami, Y. (2023). Performance Analysis of a 10 MW Ocean Thermal Energy Conversion Plant Using Rankine Cycle in Malaysia. Sustainability, 15(4), 3777. https://doi.org/10.3390/su15043777

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

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