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http://dx.doi.org/10.3744/SNAK.2013.50.3.145

Pre-Swirl Duct of Fuel Oil Saving Device Design and Analysis for Ship  

Shin, Hyun-Joon (Hyundai Heavy Industries)
Lee, Kang-Hoon (Hyundai Heavy Industries)
Han, Myung-Ryun (Hyundai Heavy Industries)
Lee, Chang-Yul (Hyundai Heavy Industries)
Shin, Sung-Chul (Dept. of Naval Architecture & Ocean Engineering, Pusan National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.50, no.3, 2013 , pp. 145-152 More about this Journal
Abstract
Recently, with oil price jumping and environmental issues, Green ship is paid deep attention to by ship owner, operator, builder, class and government. Fuel efficiency and reduction of $CO_2$ emissions are expected to have a strong influence on the design and operation of merchant ships. Many ship owners and operators are seeking the more economic method by the best operating route and the application of reliable and effective energy saving devices. With the Energy Efficiency Design Index (EEDI) in 2013 attention will more than ever be focused at achieving maximum fuel economy in the hydrodynamic design of hull forms, their appendages and propellers. IMO requirements for $CO_2$ emission for ships will now be implemented for vessels ordered from 1st January 2013. So far, a lot of new idea and patents have been proposed, tested, claimed and applied for various kinds of ship type. This paper shows numerical and experimental work related to a study on a energy saving devices particularly for fuller ship such as merchant vessel of Tanker and Bulker. From the bare hull wake measurements, typical upper/lower asymmetry of hull wake at the propeller disk was found. The pre-swirl duct have been designed and reviewed to recover the loss of propeller running in that condition. The general function of the pre-swirl duct was set to work against this asymmetry of wake and generate pre-swirled flow into the propeller against the propeller rotating direction.
Keywords
Energy saving; Pre-swirl duct; Recover the loss of propeller;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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