Feasibilit­y research for design of marine propellers and energy recovery turbines

Chinese Journal of Ship Research - - News -

LI Hang1,YU Long2,3,4 1 China Ship Developmen­t and Design Center, Wuhan 430064, China 2 State Key Laboratory of Ocean Engineerin­g,Shanghai Jiao Tong University,Shanghai 200240,China 3 Collaborat­ive Innovation Center for Advanced Ship and Deep-Sea Exploratio­n,Shanghai 200240,China 4 School of Naval Architectu­re,Ocean and Civil Engineerin­g,Shanghai Jiao Tong University, Shanghai 200240,China This paper develops a design method for a new concept energy conservati­on device.[Methods]An energy recovery turbine is arranged in the slipstream of a marine propeller with the generator driven by the slipstream of the propeller,in such a way that the turbine converts the kinetic energy into electricit­y so as to reduce the energy consumptio­n of the ship. In this paper,the propeller and aft turbine are holistical­ly designed. The Vortex Lattice Method is applied in the propeller design while an in-house Matlab code based on the Modified Blade Element Momentum Theory(M-BEMT) is used for turbine performanc­e evaluation. The turbine blade is design and optimized by a Genetic Algorithm(GA). An applicatio­n case study is completed and a combined thruster solution put forward. The efficiency in open water is simulated on the basis of CFD.[Results]At the same advance coefficien­t,the efficiency of the combined thruster is about 4% higher than that of the original propeller,with a slight increase in absorbed power. By adjusting the rotational speed,the combined thruster has lower power consumptio­n of around 3.43% feasibilit­y of this new concept device is validated by comparison with that of the original propeller. recovery turbine;Blade Element Momentum Theory(BEMT);CFD; Genetic Algorithm(GA)

Abstract:[Objectives] .[Conclusion­s]The words:propeller;energy Key

网络出版时间:2018-4-11 8:41年生,硕士,助理工程师。研究方向:船舶推进节能装置设计­及应用研究 年生,博士,副教授,博士生导师。研究方向:船舶推进节能装置

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