Advanced SearchSearch Tips
A study on the Development of Energy-Saving Device "Crown Duct"
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A study on the Development of Energy-Saving Device "Crown Duct"
Lee, Kwi-Joo; An, Jung-Sun; Yang, Sun-Hee;
  PDF(new window)
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.
Energy-saving device;Stator;Dual functioned energy saving device;Crown duct;Towing tank;
 Cited by
타의 종류에 따른 선박의 파랑 중 직진성능에 관한 연구,구본국;이종현;강동훈;

한국해양공학회지, 2013. vol.27. 2, pp.87-92 crossref(new window)
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)
Asaumi. T., Ikeda. T., Tamashima. M., and Shinohara. H. (2006). "Effectiveness of an Energy Saving Device 'Friend Fin', Conference Proceedings", The Japan Society of Naval Architecture and Ocean Engineering, Vol 3, pp 261-264. crossref(new window)

Lare T. Gustafsson and Sopia Riisberg Jensen(2011). "Chosun 50K Tanker with Crown Duct". The Model Test Report of SSPA.

Lee, J.T., Kim, M.C., Suh, J.C., Kim, S.H. and Choi, J.K. (1992). "Development of a Preswirl Stator-Propeller System for Improvement of Propulsion Efficiency : a Symmetric Stator Propulsion System", Transactions of the Society of Naval Architects of Korea, Vol 29, No 4, pp 132-145.

Lee, J.T., Kim, M.C., Van, S.H., Kim, K.S. and Kim, H.C. (1994). "Development of a Preswirl Stator Propulsion System for a 300K VLCC", Transactions of the Society of Naval Architects of Korea, Vol 31, No 1, pp 1-13.

Lee, K.J, and An, J.S.(2012). "Development of Complex Energy Saving Device", J of Ocean Engineering and Technology, Vol 26, No 3, pp 1-5. crossref(new window)

Lee, K.J, An, J.S. Yang, S.H., Park, H.J. and Lim, Y.J.(2012). "Development of own Energy-Saving Device for SPP", The Research Report of Chosun University.