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논문 기본 정보

저자정보
(Korea Institute of Industrial Technology) (Korea Institute of Industrial Technology) (Hyundai Rotem) (Korea Institute of Industrial Technology) (Korea Institute of Industrial Technology) (Korea Institute of Industrial Technology)
저널정보
한국신재생에너지학회 신·재생에너지 신재생에너지 제13권 제1호 (통권 제51호)
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    초록·키워드

    This paper reports the efficiency of a counter-rotating pump-turbine with various blade angles. Three-dimensional steady Reynolds-averaged Navier-Stokes equations with the shear stress transport turbulence model were discretized by the finite volume method and solved on hexahedral grids to analyze the flow in the pump-turbine unit. The numerical results for the pump and turbine modes were verified by a comparison with their experimental data. The blade angles at both the hub and shroud of the counter-rotating impeller/runner were employed as geometric parameters to investigate their effects on the efficiency of the counter-rotating pump-turbine. The main effects on the efficiency of the geometric parameters were analyzed from their interaction through the 2k factorial design method. These results showed remarkable increases in both the pump and turbine efficiencies compared to the reference model.

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      UCI(KEPA) : I410-ECN-0101-2017-505-002231935