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http://dx.doi.org/10.5293/KFMA.2006.9.2.007

Design of Drag-type Vertical Axis Miniature Wind Turbine Using Arc Shaped Blade  

Kim, Dong-Keon (부산대학교 대학원)
Kim, Moon-Kyung (창원전문대 기계설계과)
Cha, Duk-Keun (동의대학교 전기공학과)
Yoon, Soon-Hyun (부산대학교 기계공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.9, no.2, 2006 , pp. 7-12 More about this Journal
Abstract
This study is to develop a system of electric power generation utilizing the wind resources available in the domestic wind environment. We tested drag-type vortical wind turbine models, which have two different types of blades: a flat plate and circular arc shape. Through a performance test, conditions of maximum rotational speed were found by measuring the rpm of wind turbine. The rotational speed was measured by a tachometer in a wind tunnel and the tunnel wind speed was by using a pilot-static tube and a micro manometer. The performance test for a prototype was accomplished by calculating power, power coefficient, torque coefficient from the measurement of torque and rpm by a dynamometer controller From the measurements for miniature turbine models with two different blades, the circular arc shape was found to Produce a maximum rotational speed for the same wind velocity condition. Based on this result, the prototype with the circular arc blade was made and tested. We found that it produces 500W at the wind velocity of 10.8 m/s and the power coefficient was 20%.
Keywords
Drag-type wind turbine; Turbine geometry; Power coefficient; Torque coefficient;
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