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Model testing and performance comparison of plastic and metal tidal turbine rotors

Citation

Liu, P and Bose, N and Frost, RT and MacFarlane, GJ and Lilienthal, T and Penesis, I, Model testing and performance comparison of plastic and metal tidal turbine rotors, Applied Ocean Research, 53 pp. 116-124. ISSN 0141-1187 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 Elsevier Ltd.

DOI: doi:10.1016/j.apor.2015.08.002

Abstract

Experimental model tests were conducted to predict the performance of two sets of metal and plastic bi-directional tidal turbine rotors. This test programme aims to provide reliable and accurate measurement data as references for developers, designers and researchers on both model and full scale. The data set presented in this paper makes available the detailed geometry and motion parameters that are valuable for numerical tools validation. A rotor testing apparatus that was built using an off-the-shelf K&R propeller dynamometer, its configuration, testing set-up, calibration of the apparatus and data acquisition are described. Comparison analysis between the metal and plastic rotors hydrodynamic performance in terms of torque, drag and derived power and drag coefficients are also presented. The results show a substantial decrease in maximum power performance for the plastic rotors about 40% decrease at a tip speed ratio of around 3.0, compared with rigid metal rotors. The plastic rotors have also a much higher cut-in speed. It showed that materials for rotor models with low rigidity such as polyamide (nylon) produced by selective laser sintering (SLS) systems may substantially under-predict power generation capacity. As a result, they are considered unsuitable for rotor model performance evaluation.

Item Details

Item Type:Refereed Article
Keywords:tidal turbine rotors, model testing, materials
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ocean Engineering
Objective Division:Energy
Objective Group:Renewable Energy
Objective Field:Tidal Energy
Author:Liu, P (Associate Professor Pengfei Liu)
Author:Bose, N (Professor Neil Bose)
Author:Frost, RT (Mr Rowan Frost)
Author:MacFarlane, GJ (Associate Professor Gregor MacFarlane)
Author:Lilienthal, T (Mr Tim Lilienthal)
Author:Penesis, I (Associate Professor Irene Penesis)
ID Code:102657
Year Published:2015
Web of Science® Times Cited:3
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2015-09-02
Last Modified:2017-11-06
Downloads:0

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