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A study on the Development of Energy-Saving Device "Crown Duct"
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 Title & Authors
A study on the Development of Energy-Saving Device "Crown Duct"
Lee, Kwi-Joo; An, Jung-Sun; Yang, Sun-Hee;
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 Abstract
A energy saving device "Crown duct" has been developed and its efficiency gain has been verified experimentally in the towing tank of SSPA. The preswirl stator is well known as one of energy saving devices, which recovering the rotational energy of propeller slipstream. Crown duct has two functions of recovers the rotational energy by three blades on top of duct and of flow concentration by semi-duct. The model tests showed 4.4% efficiency gain with Crown Duct at full load condition and 6.9% at ballast condition compared with the bare hull ones for the middle class tanker.
 Keywords
Energy-saving device;Stator;Dual functioned energy saving device;Crown duct;Towing tank;
 Language
English
 Cited by
1.
타의 종류에 따른 선박의 파랑 중 직진성능에 관한 연구,구본국;이종현;강동훈;

한국해양공학회지, 2013. vol.27. 2, pp.87-92 crossref(new window)
2.
Comparative Study between Results of Theoretical Calculation and Model Test for Performance Confirmation of "Crown Duct",;;;

한국해양공학회지, 2014. vol.28. 1, pp.1-5 crossref(new window)
1.
Comparative Study between Results of Theoretical Calculation and Model Test for Performance Confirmation of "Crown Duct", Journal of Ocean Engineering and Technology, 2014, 28, 1, 1  crossref(new windwow)
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