Saving Energy with Dutch Air-bubble Lubrication System 'ACES'

By George Backwell at May 15, 2011 04:38
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Energy saving, fuel economy of 15%, by reducing frictional drag on the immersed hull by means of injected streams of air bubbles has been proven effective by recently concluded practical tests. Two years of trials of a technology known as ‘Air Chamber Energy Saving’ (ACES) installed in a working Dutch inland waterway tanker back up this claim. ACES Damen Shipyards in Holland commissioned the exercise in the Dutch inland waterway tanker Till Deymann provided by subsidiary company Bodewes Binnenvaart back in 2009 on the heels of detailed analysis of tank-testing and computer modelling (at the Dutch Institute MARIN in Wageningen and DST laboratories in Duisberg, Germany), that indicated the time was right for putting ACES to the test under operational conditions. Till Deymann, chosen for conversion in order to test out the ACES system, was a standard 'River Liner' type 11.45e product from the Damen yard, of 2858 dwt, with a LOA of 110 m, moulded breadth of 11.45 m, and a d... [More]

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