A Theoretical Investigation on the Potential Application of Ocean Salinity and Temperature Energy Conversion (OSTEC)

Shu Kim Lee, Jedol Dayou, Awang Sufiyan Abd. Hamid, Ejria Saleh, Baharum Ismail

Abstract


This paper discusses the theoretical investigation on the effect of salinity and temperature differences between ocean sea water and the incoming fresh water from surrounding area, as main parameters, to the generation of electrical power. A theoretical formulation is first derived to predict the water flow rate at the sea water surface when fresh water is funnelled at the bottom of an up-tube, immersed in the sea water, using smaller down-tube. The flow rate is then converted into corresponding kinetic power that may be translated into electrical energy using water turbine. The paper ends with computer simulations when the temperature and salinity differences between incoming fluid and the sea water, and also when the diameter of the up-tube and down-tube, are varied, at various elevation of the reservoir of the incoming fluids.

Keywords


kinetic power output; ocean energy conversion system; buoyant force; total kinetic power transfer; heat energy transfer.

Full Text:

PDF

References


P. Moriarty and D. Honnery, “What is the global potential for renewable energy?†Renewable and Sustainable Energy Reivew, vol. 16, pp. 244-252, 2012

O. Yaakob, T.M.A.B. Tengku Ab Rashid and M.A. Abdul Mukti, “Prospects for ocean energy in Malaysiaâ€, International Conference on Energy and Environmental (ICEE), Kuala Lumpur, 28-30 August 2006.

R. Banos, F. Manzano-Agugliaro, F. G. Montoya, C. Gil, A. Alcayde and J. Gomez, “Optimization methods applied to renewable and sustainable energy: A reviewâ€, Renewable and Sustainable Energy Reveiw, vol. 15, pp. 1753-66, 2011.

C. W. Finkl and R. Charlier, “Electrical power generation from ocean currents in the Straits of Florida: Some environmental considerationsâ€, Renewable and Sustainable Energy Review, vol. 13, pp. 2597-2604, 2009.

M. Esteban and D. Leary, “Current developments and future prospects of offshore wind and ocean energyâ€, Applied Energy, vol. 90, pp. 128-136, 2012.

A. E. Gill, Atmosphere-Ocean Dynamics, Academic Press, 1982.

R. H. Petrucci, F. G. Herring, J. D. Madura and C. Bissonnette, “General Chemistry: Principles and Modern Applicationsâ€, 10th ed., Toronto: Pearson Canada Inc.; 2010.

J. B. Franzini and E. J. Finnemore, “Fluid Mechanics with Engineering Applicationsâ€, 9th ed. New York: McGraw-Hill, 1997.

E. Pscheidt and W. Finley, Driving useful power from the osmotic potential between solutions, 2003, (retrieved on December 13, 2011).

T. M. I. Mahlia and P. L. Chan, “Life cycle cost analysis of fuel cell based cogeneration system for residential application in Malaysiaâ€, Renewable and Sustainable Energy Review, vol. 15, pp. 416 - 426, 2011.




DOI (PDF): https://doi.org/10.20508/ijrer.v2i2.199.g127

Refbacks

  • There are currently no refbacks.


Online ISSN: 1309-0127

Publisher: Gazi University

IJRER is cited in SCOPUS, EBSCO, WEB of SCIENCE (Clarivate Analytics);

IJRER has been cited in Emerging Sources Citation Index from 2016 in web of science.

WEB of SCIENCE in 2025; 

h=35,

Average citation per item=6.59

Last three Years Impact Factor=(1947+1753+1586)/(146+201+78)=5286/425=12.43

Category Quartile:Q4