Blade Configurations and Performance of the Savonius Rotor With Application to an Irrigation System in Indonesia

[+] Author and Article Information
V. J. Modi, N. J. Roth, A. Pittalwala

Department of Mechanical Engineering, The University of British Columbia, Vancouver, B.C., Canada V6T 1W5

J. Sol. Energy Eng 105(3), 294-299 (Aug 01, 1983) (6 pages) doi:10.1115/1.3266381 History: Received February 02, 1982; Online November 11, 2009


This paper describes results of a systematic wind tunnel study aimed at development of the wind-operated irrigation system suitable for meeting needs of small farms in Indonesia. Using several models of the single-stage Savonius configuration, influence of the blade gapsize and overlap on the output is assessed and their favourable combination established for a given blade geometry. This is followed by the performance data on a larger, self-starting, two-stage model operating in conjunction with several different pumps. Results suggest that the two-stage configuration with a projected blade area of 1.12 m2 is capable of delivering 250 L/hr to a head of 4 m at a windspeed of around 16 km/hr using a gear pump. The performance appears quite promising, and a prototype is being designed to meet the objective. A preliminary study aimed at load matching through the generator field control is in progress.

Copyright © 1983 by ASME
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