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논문 기본 정보

자료유형
학술대회자료
저자정보
박준선 (중앙대학교) 이승진 (중앙대학교) 박중열 (중앙대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2018년도 학술대회
발행연도
2018.12
수록면
1,126 - 1,130 (5page)

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With the depletion of existing energy resources and the issue of environmental pollution, renewable energy is being watched for using fossil fuels or converting renewable energy. At the same time, energy harvesting is in the spotlight, converting small amounts of waste energy into electrical energy for sensors that require small power consumption. Wind turbine is expected to play an important role in supplying small electric power because there is no environmental pollution and small winds can be used. Although the development of large scale wind turbine (rotor diameter of 10 m, generation of 25 kW or more) is being pursued politically, there are not many studies on super small wind turbine for small wind speeds (within 3 m/s). The researchers have studied the shape of the blades to increase the efficiency of small wind turbines that convert small winds below 3 m/s into electrical energy. In this study, we aimed to improve the performance of miniature wind turbine and miniaturize the blade radius. The shape of the blade for the research was optimized by curving the middle part of the blade and the angle and curved position. The designed blades were printed by a 3D printer and tested at the wind speed of 3 m/s. CFD analysis was performed to investigate aerodynamic characteristics. Finally, the output voltage was 133% higher than that of the straight blade, and it succeeded in miniaturizing it to 35 mm in diameter. It is expected that the result of blade shape revealed in this study will be used as basic data for the development of super small wind turbine.

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Abstract
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