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Conceptual design of a 100kW energy-integrated type bi-directional tidal current turbine

Kim, K.P. and Ahmed, Mohammed R. and Lee, Y.H. (2009) Conceptual design of a 100kW energy-integrated type bi-directional tidal current turbine. [Conference Proceedings]

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Abstract

The development of a tidal current turbine that can extract maximum energy from the tidal current will be extremely beneficial for supplying continuous electric power. The present paper presents a conceptual design of a 100kW energy integrated type tidal current turbine for tidal power generation. The instantaneous power density of a flowing fluid incident on an underwater turbine is proportional to the cubic power of current velocity which is approximately 2.5m∕s. A cross‐flow turbine, provided with a nozzle and a diffuser, is designed and analyzed. The potential advantages of ducted and diffuser‐augmented turbines were taken into consideration in order to achieve higher output at a relatively low speed. This study looks at a cross‐flow turbine system which is placed in an augmentation channel to generate electricity bi‐directionally. The compatibility of this turbine system is verified using a commercial CFD code, ANSYSCFX. This paper presents the results of the numerical analysis in terms of pressure, streaklines, velocity vectors and performance curves for energy integrated type bi‐directional tidal current turbine (BDT) with augmentation.

Item Type: Conference Proceedings
Additional Information: Paper no. 212.
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Ms Neha Harakh
Date Deposited: 18 Feb 2009 16:03
Last Modified: 24 Jul 2012 21:30
URI: http://repository.usp.ac.fj/id/eprint/1530
UNSPECIFIED

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