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Development and optimization of dual-mode propellers for renewable energy

Lookup NU author(s): Professor Pengfei LiuORCiD


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© 2017 Elsevier Ltd. Propeller as both propulsion and turbine device has been used for many marine vehicle renewable energy applications, especially for sailing boats and yachts. However, dual-mode propellers in these applications were mainly selected from off-the-shelf with little or no hydrodynamic performance optimization coupling propulsion and energy generation efficiency on the same rotor. To address this issue and provide some scientific evidence and data for the design of the towed propeller shaft alternator, a dual-mode rotor series, as an example, in terms of a balanced propulsion and energy generation were evaluated and optimized. Previous experimental data for these rotors was used for code validation, to ensure a reliable and accurate prediction of the effects of pitch and solidity on performance. The results obtained indicate that the optimized fixed pitch propeller could perform as propulsion and tidal/current turbine with a balanced efficiency in both modes for low speed ships, especially for yachts. The balanced relatively high power productivity and propulsive performance are achievable for low speed ships anchored in a current or a regular sail boat for which a propeller is used as a towed turbine.

Publication metadata

Author(s): Liu P, Bose N, Chen K, Xu Y

Publication type: Article

Publication status: Published

Journal: Renewable Energy

Year: 2018

Volume: 119

Pages: 566-576

Print publication date: 01/04/2018

Online publication date: 13/12/2017

Acceptance date: 10/12/2017

ISSN (print): 0960-1481

ISSN (electronic): 1879-0682

Publisher: Elsevier Ltd


DOI: 10.1016/j.renene.2017.12.041


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