소수력 발전용 수차설치를 위한 관로 형상 최적화에 대한 연구
A Study on the Optimal Shape of the Channel for Micro Hydraulic Turbine
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초록
Hydro-electric power is a method of generating electricity from the rotational force of turbine blades by using the potential energy of a river or reservoir water. Recently, the necessity of small hydropower development is expanding due to the development and support of renewable energy, and because of the difficulty and environmental problems of huge dams. The purpose of this paper is to deal with a method of increasing the efficiency of small water turbine that can be adopt in low head condition. In order to improve the turbine efficiency, channel shape is optimized in order to minimize head loss using computational fluid dynamics. The angle values for the contraction and enlargement part of the channel where the turbine is located are found from the analyses. Additionally, three-dimensional analysis is applied to the optimized channel shape in order to confirm the optimized pipe.
Abstract
Hydro-electric power is a method of generating electricity from the rotational force of turbine blades by using the potential energy of a river or reservoir water. Recently, the necessity of small hydropower development is expanding due to the development and support of renewable energy, and because of the difficulty and environmental problems of huge dams. The purpose of this paper is to deal with a method of increasing the efficiency of small water turbine that can be adopt in low head condition. In order to improve the turbine efficiency, channel shape is optimized in order to minimize head loss using computational fluid dynamics. The angle values for the contraction and enlargement part of the channel where the turbine is located are found from the analyses. Additionally, three-dimensional analysis is applied to the optimized channel shape in order to confirm the optimized pipe.
참고문헌 (6)
- Suk Bum Youn, "Fluid mechanics" (2016), Munoondang
- Tadashi Tsukamoto, "Characteristics of a micro tubular turbine for the serial arrangement", Turbomachinery, 32(3), pp.176~182 (2005)
- Oliver Paish, "Small hydro power: technology and current status", Renewable and Sustainable Energy Reviews, 6, pp.537~556 (2002)
- 황영호, "소수력 발전용 튜블러 수차의 고성능화 및 현장최적화에 관한 연구", 박사, 기계공학과, pp.2012
- 정인혁, "펠턴 터빈 성능에 영향을 미치는 손실계수에 관한 이론적 분석", 대한기계학회논문집 B, 42(5), pp.325~331 (2018), 대한기계학회
- D. C. Wilcox, "Turbulence modeling for CFD" (1993), DCW Industries, Inc