FEASIBILITY STUDY OF HYBRID ENERGY GENERATING SYSTEM:(Wind tunnel test)

概要

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A hybrid energy generating system that can use both solar energy and wind energy is proposed. The outlook ofthis system is like a flower having several pedals. In sunny days, it opens and assembles solar energy by themirror surface of panels, while in cloudy and windy days it closes and rotates to transfer wind power intoelectric power. The performances of two different prototypes (Type A and Type B) as electric generator areexamined by wind tunnel tests. Type A is composed of six panels (50cm×10cm). Type B is composed oftwelve panels (50cm×12cm) with six of them located inside and the other six located outside. The surfaces ofthe panels have parabolic shape to focus solar radiation at one point. The parameters of the wind tunnel testsare wind speed (3m/s∼20m/s), panel angle (15°∼83°), measured from base line on rotating circle and inclinedangle of rotating axis (-30°∼ +30°). As experimental results of Type A, the number of revolutions per minute(RPM) increases proportional by to the square of the wind velocity and Type B, RPM increases linearly by tothe wind velocity. The maximum RPM are obtained at the case of panel angle = 60 Type A, outsidepanels angle = 60°and inside panels angle = 30°for Type B, respectively. The maximum electric power is80W in the case of 15m/s for Type B. RPM decreases by about 10% when the inclined angle is in the range of-30°, +30°.
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