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RESEARCH PAPERS

Experiments With a Diffuser-Augmented Model Wind Turbine

[+] Author and Article Information
B. L. Gilbert

Research and Development Center, Grumman Aerospace Corporation, Bethpage, N.Y. 11714

K. M. Foreman

Advanced Fluid Concepts Laboratory, Research and Development Center, Grumman Aerospace Corporation, Bethpage, N.Y. 11714

J. Energy Resour. Technol 105(1), 46-53 (Mar 01, 1983) (8 pages) doi:10.1115/1.3230875 History: Received July 09, 1981; Revised February 24, 1982; Online October 22, 2009

Abstract

The initial stages of the experimental development of the diffuser-augmented wind turbine (DAWT) employed various screen meshes to simulate the energy extraction mechanisms of a wind turbine. In this investigation in a 2 × 3 m wind tunnel, a three-bladed constant chord, untwisted turbine model was incorporated into a DAWT model. The objectives were to add real turbine characteristics such as swirl, and centerbodies effects, to the flow. Although this turbine model was not well matched to the diffuser, the model DAWT system increased the power output by more than four times that of the model turbine operating as a conventional wind energy conversion system; more than 3.4 times the power potential of an ideal wind turbine was measured.

Copyright © 1983 by ASME
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