Reduction of Ship Hull Frictional Resistance by Ultra-efficient Antifouling Paint
نویسندگان
چکیده
منابع مشابه
Hull roughness and antifouling paint
The fouling of ships and propellers results in a reduction of speed, increased fuel consumption, and consequently, losses of both time and money. The previous studies found that a speed reduction of 0.03 knots would occur due to increased friction resulting from 10μm increase in surface roughness. This would increase fuel consumption by 1%, energy savings can then be easily converted into emiss...
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An experimental study has been made to compare the frictional resistance of several ship hull coatings in the unfouled, fouled, and cleaned conditions. Hydrodynamic tests were completed in a towing tank using a flat plate test fixture towed at a Reynolds number ~ReL! range of 2.8310 6 – 5.5310 based on the plate length and towing velocity. The results indicate little difference in frictional re...
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Hydrodynamic performance of a marine vessel mainly depends on the frictional and pressure resistance. Pressure drag reduction could be achieved by improving the shape of the vessels with implementation of modern hull forms. Hull forms optimization techniques could also be used for this purpose. Other techniques are needed to deal with the viscous portion of the total resistance, which is mainly...
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In designing for ship production, the production method should be considered and it’s possible to reduce the manufacturing cost in designing procedure. A review of background of ship design that had minimized production costs, shows the principles and problems of these methods. Modern designing methods for manufacturing, considers hydrodynamic efficiency and less manufacturing cost. Quant...
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ژورنال
عنوان ژورنال: Marine Engineering
سال: 2013
ISSN: 1346-1427,1884-3778
DOI: 10.5988/jime.48.288