Performance of a High-Solidity Wells Turbine for an OWC Wave Power Plant

Author:

Gato L. M. C.1,Warfield V.2,Thakker A.2

Affiliation:

1. Department of Mechanical Engineering, Instituto Superior Te´cnico, Universidade Te´cnica de Lisboa, 1096 Lisbon, Portugal

2. Department of Mechanical and Aeronautical Engineering, University of Limerick, Limerick, Ireland

Abstract

The paper describes an experimental investigation, and presents the results of the aerodynamic performance of a high-solidity Wells turbine for a wave power plant. A monoplane turbine of 0.6 m rotor diameter with guide vanes was built and tested. The tests were conducted in unidirectional steady airflow. Measurements taken include flow rate, pressure drop, torque, and rotational speed, as well as velocity and pressure distributions. Experimental results show that the presence of guide vanes can provide a remarkable increase in turbine efficiency.

Publisher

ASME International

Subject

Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment

Reference21 articles.

1. Falca˜o, A. F. de O., Sarmento, A. J. N. A., Gato, L. M. C., and Pontes, M. T., 1991, “Preliminary Design of a Demonstration OWC Wave Plant for the Azores,” Third International Symposium on Ocean Wave Energy Utilization, eds., T. Miyazaki and H. Hotta, JAMSTEC, Yokosuka, pp. 395–403.

2. Ferro, L. M. C., 1990, “Design of a Kaplan Bulb Turbine Rotor,” Internal Report (in Portuguese), Dept. Mechanical Engineering, IST, Lisbon, Portugal.

3. Gato L. M. C. , and Falca˜oA. F. de O., 1984, “On the Theory of the Wells Turbine,” ASME Journal of Engineering for Gas Turbines and Power, Vol. 106, pp. 628–633.

4. Gato L. M. C. , and Falca˜oA. F. de O., 1984, “Aerodynamics of the Wells Turbine,” International Journal of Mechanical Sciences, Vol. 30, No. 6, pp. 383–395.

5. Gato L. M. C. , and Falca˜oA. F. de O., 1989, “Aerodynamics of the Wells Turbine: Control by Swinging Rotor Blades,” International Journal of Mechanical Sciences, Vol. 31, No. 6, pp. 425–434.

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