Increasing efficiency of a 33 MW OTEC in Indonesia using flat-plate solar collector for the seawater heater

Iwan Rohman Setiawan, Irwan Purnama, Abdul Halim

Abstract

This paper presents a design concept of Ocean Thermal Energy Conversion (OTEC) plant built in Mamuju, West Sulawesi, with 33 MWe and 7.1% of the power capacity and efficiency, respectively. The generated electrical power and the efficiency of OTEC plant are enhanced by a simulation of a number of derived formulas. Enhancement of efficiency is performed by increasing the temperature of the warm seawater toward the evaporator from 26˚C up to 33.5˚C using a flat-plate solar collector. The simulation results show that by increasing these a water temperature up to 33.5˚C, the generated power will increase up to 144.155 MWe with the OTEC efficiency up to 9.54%, respectively. The required area of flat-plate solar collector to achieve the results is around 6.023 x 106 m2.




Keywords


enhanced efficiency; OTEC plant; flat-plate solar collector; Mamuju West Sulawesi

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References


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Journal of Physics: Conference Series  vol: 1469  first page: 012101  year: 2020  
doi: 10.1088/1742-6596/1469/1/012101