BEMT를 적용한 20㎾ 수평축 풍력터빈 형상설계 및 성능해석
A Study on the Configuration Design and the Performance Analysis of the 20kW HAWT based on BEMT
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Abstract
The optimum design and the performance analysis software called POSEIDON for the HAWT (Horizontal Axis Wind Turbine) is developed by use of BEMT, which is the standard computational technique for prediction of power curves of wind turbines. The Prandtl's tip loss theory is adopted to consider the blade tip loss. The lift and the drag coefficient of S-809 airfoil are predicted via X-FOIL and the post stall characteristics of S-809 also are estimated by the Viterna's equations.[13] All the predicted aerodynamic characteristics are fairly well agreed with the wind tunnel test results, performed by Sommers in Delft university of technology. The rated power of the testing rotor is 20kW(FIL-20) at design conditions. The experimental aerodynamic parameters and the X-FOIL data are used for the power prediction of the FIL-20 respectively. The comparison results shows good agreement in power prediction.
참고문헌 (14)
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