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최주석(J. S. Choi),김일수(I. S. Kim),문채주(C. J. Moon),김옥삼(O. S. Kim) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
Among many other alternative energy resources, small scale hydropower has been brought into attention as a reliable source of energy today, which had been relatively neglected since 1960s. Present low head of Francis turbines and small scale hydro turbines, however, have limitations in the minimum required head and flow rate for efficient operation. This study attempts to develope the Francis turbine which is expected to run efficiently even in very low head and small flow rate, so that the limitations on the conventional small scale hydropower could be alleviated and competition with other alternative energy sources in the changable design conditions could be attained. The Francis turbine of a new concept was designed based on changable design conditions, hydrodynamics and theory of power transmission.
소수력 발전용 프란시스 수차의 수력학적 성능에 관한 연구
최주석(J. S. Choi),김일수(I. S. Kim),문채주(C. J. Moon),김옥삼(O. S. Kim) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
Francis turbine of commercial small hydro-power plants under 10kw which is investigate a flow characterist and an efficiency in the research which it sees, the problem and an improvement is investigate. In the research which it is simply model with casing, guide-vane, runner, draft tube for simulation numerical analysis of small-sized Francis turbine. model uses the Gambit and it composes with approximately 800,000 nonuniform lattices. Solutions are investigate the hydraulic characteristics against an outward angle of guide vane, the number of guide vane, head(inlet velocity) by using FLUENT which is a commercial business code.