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Revival of the Modern Wing Sails for the Propulsion of Commercial Ships
Abstract:Over 90% of the world trade is carried by the international shipping industry. As most of the countries are developing, seaborne trade continues to expand to bring benefits for consumers across the world. Studies show that world trade will increase 70-80% through shipping in the next 15-20 years. Present global fleet of 70000 commercial ships consumes approximately 200 million tonnes of diesel fuel a year and it is expected that it will be around 350 million tonnes a year by 2020. It will increase the demand for fuel and also increase the concentration of CO2 in the atmosphere. So, it-s essential to control this massive fuel consumption and CO2 emission. The idea is to utilize a diesel-wind hybrid system for ship propulsion. Use of wind energy by installing modern wing-sails in ships can drastically reduce the consumption of diesel fuel. A huge amount of wind energy is available in oceans. Whenever wind is available the wing-sails would be deployed and the diesel engine would be throttled down and still the same forward speed would be maintained. Wind direction in a particular shipping route is not same throughout; it changes depending upon the global wind pattern which depends on the latitude. So, the wing-sail orientation should be such that it optimizes the use of wind energy. We have made a computer programme in which by feeding the data regarding wind velocity, wind direction, ship-motion direction; we can find out the best wing-sail position and fuel saving for commercial ships. We have calculated net fuel saving in certain international shipping routes, for instance, from Mumbai in India to Durban in South Africa. Our estimates show that about 8.3% diesel fuel can be saved by utilizing the wind. We are also developing an experimental model of the ship employing airfoils (small scale wingsail) and going to test it in National Wind Tunnel Facility in IIT Kanpur in order to develop a control mechanism for a system of airfoils.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1327971Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3469
 Dr. K Ghosh and D Dey, ÔÇÿRevival of Wind Energy Application in Ship Propulsion with Implications for Indian Shipping: Review and Recommendations.- The Institution of Engineers (India) Publications - MR, vol 75, November 1994
 V L Streeter and E B Wylie. ÔÇÿFluid Mechanics.- McGraw- Hill, Sixth Edition, 1975, p 437.
 I H Abbott and A E Von Doenhoff. ÔÇÿTheory of Wing Sections.- Dover Publication, New York, 1959.
 K J Rawson and E C Tupper. ÔÇÿBasic Ship Theory.- American Elsevier Publishing Company, Inc, New York, 1968, p 93
 Anna Mani and D A Mooley. ÔÇÿWind Energy Data for India.- Allied Publishers Private Limited, New Delhi, 1983.
 Ray Hunter and George Elliott. ÔÇÿWind-Diesel Systems-, Cambridge University Press, New York, 1994.
 Gary L. Johnson, ÔÇÿWind Energy Systems-, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1985.
 Martin J. Pasqualetti, Paul Gipe and Robert W. Righter, ÔÇÿWind Power in View- Academic Press, San Diego, California, 2002.
 John f. walker and nicholas jenkins, ÔÇÿWind Energy Technology- Published by John Wiley & Sons, West Sussex, England, 1997.
 Palmer Cosslett Putman, ÔÇÿ Power from the Wind- Published by Van Nortrand Reinhold Company, New York, 1948.
 Hans Ulrich Roll, ÔÇÿPhysics of The Marine Atmosphere- Published by Academic Press, 1965.
 Pavel Nikolaevich, E. S. Selezneva and A. Sen, ÔÇÿPhysics of The Atmosphere.- Published by Israel Programme for Scientific Translations, 1965.
 H Selzer. ÔÇÿPotential of Wind Energy in the European Community. An Assessment Study.- Solar Energy R& D in the European Community, D Reidel Publishing Company, Dortrecht, Series G, vol 2, 1986.
 L Bergeson, G Clemmer, J E York, A P Jr Bates, J H Mays and M A Glucksman. ÔÇÿWind Propulsion for Ships of the American Merchant Marine.- MARAD Report, MA - RD - 940 -81034, (NTS PB 81 - 162455), March 1981.
 P Sschenzle. ÔÇÿNew Ssailing Ships for Indonesia.- Transactions STG, Hamburg, vol 77, 1983.
 Asian Development Bank Report, Transaction no 508, Fiji, 1985, ÔÇÿExperimental Study on Sail Motor Propulsion.- By Macalister Elliott and Partners Ltd., January 1985.
 R G Macalister and S J Akester. ÔÇÿThe Retrofitting of Sail to Two Existing Motor Ships of the Fiji Government Fleet.- Proceedings of the 1st Wind Assisted Ship Propulsion Symposium, British Wind Energy Association, Glasgow. UK, November 27-28, 1985.
 L Bergeson and C K Greenwald. ÔÇÿSail Assist Developments 1979 1985.- Wind Assisted Ship Conference, Southampton University, UK, April 1985.
 T E Sweeny. ÔÇÿExploratory Sailing Research at Princeton Department of Aerospace Engineering.- Princeton University, Report 578, 1961.
 J Robert and B G Newman. ÔÇÿ Lift and Drag of a Sail Aerofoil.- Wind Engineering, vol 3, no 1, 1979.
 C A Marchaj. ÔÇÿ sailing theory and practice.- Dodd, mead, 1964. p 97.
 J robert and b g newman. ÔÇÿ lift and drag of a sail aerofoil.- Wind engineering, vol 3, no 1, 1979.
 World-Wide Wind Energy Resource Distribution Estimates, Pacific Northwest Laboratory, Operated for the U.S. Department of Energy by Battelle Memorial Institute.
 The Shipping Corporation of India Limited, A Government of India Enterprise, Madam Cama Road, Mumbai, 2008.
 Gunnar C.F. Asker, Asker Enterprises, "Roller furled Genoa and rigid surface wing sail, a flexible practical wind-assist system for commercial vessels."