Analysis of Ocean Thermal Energy Conversion (OTEC) Potential using Closed-cycle System Simulation of 100 MW Capacity in Bali Sea

Ismail Aswad, Nanda Yusal, Haryo Armono, Purwanto, Delyuzar Ilahude, Liany Catherine, Asfarur Ridwan

2019

Abstract

The Bali Sea is one of the body water that has OTEC potential because of its location in tropical region, thus it has high sea surface temperatures. This research was conducted to examine temperature differences to run the system and analyze the results of simulation of the closed-cycle OTEC system based on the simulation results of Uehara and Ikegami (1990) as a basic reference in the installation of plants and obtain net power produced by the cycle. The data used in this study is temperature in depth data per day during October 2008-June 2017 which downloaded from HYCOM website and vertical temperature data of CTD which is the result of P3GL survey on 21 May 2017 -3 June 2017. Data processing was done by calculating the differences in temperature of warm sea air on the surface and cold sea water at depth of 800 m by qualifying the minimum difference requirement of 20oC. The results of temperature data processing yield the difference in temperature minimum requirements of 20oC at all study area in the range of 21.895oC-24.7oC. The parameter values in the closed cycle OTEC system obtained are the warm sea water (TWS) and cold (TCS) temperatures of 28.4oC-30.36oC and 5.591oC-6.711oC; warm seawater pump power (PWS), cold seawater pump power (PCS), and working fluid pump power (PWF) of 10.9596-11.521 MW, 16.0596-16.621 MW, and 1.94-1.97 MW; and the heat transfer area in evaporator (AE), the heat transfer area in condenser (AC), and total of heat transfer area (AT) of 0.737-1.7478 x105 m2, 0.9685-1.614 x105 m2, and 1.7058-3.3435 x105 m2. Net power potential of OTEC in Bali Sea has range between 70-71 MW with maximum net power found at Point 2 of 71.041 MW with capacity of 100 MW and produce a cycle efficiency of 0.41323 or 41.323%.

Paper Citation

in Harvard Style

Aswad I., Yusal N., Armono H., Purwanto., Ilahude D., Catherine L. and Ridwan A. (2019). Analysis of Ocean Thermal Energy Conversion (OTEC) Potential using Closed-cycle System Simulation of 100 MW Capacity in Bali Sea. In Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN, ISBN 978-989-758-516-6, pages 13-21. DOI: 10.5220/0010046600130021

in Bibtex Style

@conference{isoceen19,
author={Ismail Aswad and Nanda Yusal and Haryo Armono and Purwanto and Delyuzar Ilahude and Liany Catherine and Asfarur Ridwan},
title={Analysis of Ocean Thermal Energy Conversion (OTEC) Potential using Closed-cycle System Simulation of 100 MW Capacity in Bali Sea},
booktitle={Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,},
year={2019},
pages={13-21},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010046600130021},
isbn={978-989-758-516-6},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,
TI - Analysis of Ocean Thermal Energy Conversion (OTEC) Potential using Closed-cycle System Simulation of 100 MW Capacity in Bali Sea
SN - 978-989-758-516-6
AU - Aswad I.
AU - Yusal N.
AU - Armono H.
AU - Purwanto.
AU - Ilahude D.
AU - Catherine L.
AU - Ridwan A.
PY - 2019
SP - 13
EP - 21
DO - 10.5220/0010046600130021