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Effect of Blade Angles on a Micro Axial-Type Turbine Operated in a Low Partial Admission Rate  

Cho, Soo-Yong (경상대학교 공학연구원)
Cho, Bong-Soo (경상대학교 항공우주공학과)
Cho, Chong-Hyun (경상대학교 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.11, no.4, 2007 , pp. 10-18 More about this Journal
Abstract
A tested micro axial-type turbine consists of two stages and its mean radius of rotor flow passage is 8.4 mm. This turbine could be applied to a driver of micro power system, and its rotational speed in the unloaded state reaches to 100,000 RPM. The performance of this system is sensitive depending on the blade angles of the rotor and stator because it is operated in a low partial admission rate, so a performance test is conducted through measuring the specific output power and the net specific output torque with various blade angles on the nozzle, stator and rotor. The experimental results show that the net specific output torque is varied by 15% by changing the rotor blade angle, and the optimal incidence angle is about $10.3^{\circ}$.
Keywords
Partial Admission; Micro Axial-Type Turbine; Blade Angles; Performance Test;
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Times Cited By KSCI : 1  (Citation Analysis)
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