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  • Title(Kor)
    2.5 kW 급 프로펠러형 마이크로 수차 개발
  • Title(Eng)
    Development of 2.5 kW Class Propeller Type Micro Hydraulic Turbine
  • Keyword
    Hydraulic turbine(수차), Computational fluid dynamics(전산유체역학), Inlet guide vane(입구 가이드 베인), Runner(러너)
  • Author(Kor)
    마상범1⋅김 성1⋅최영석1,2⋅차동안1⋅김진혁1,2†
  • Author(Eng)
    SANG-BUM MA1, SUNG KIM1, YOUNG-SEOK CHOI1,2, DONG-AN CHA1, JIN-HYUK KIM1,2†
  • Date
    2020-06
  • Attach file
  • Page
    Page. 314~321
  • Abstract(Eng)
  • In this work, a preliminary design of an inlet guide vane and runner for developing a 2.5 kW hydraulic turbine was conducted by using computational fluid dynamic analysis. Three-dimensional Reynolds-averaged Navier-Stokes equations with shear stress transport turbulence model were used to analyze the fluid flow in the hydraulic turbine. The hexahedral grid system was used to construct computational domain, and the grid dependency test was performed to obtain the optimal grid system. Velocity triangle diagram considering the flow angles of the inlet guide vane and runner was analyzed to obtain a basic geometry of the inlet guide vane and runner. Through modification of the preliminary design, the hydraulic performances of the turbine have improved under overall drop conditions. Especially, the efficiency and power of the turbine increased by 0.95% and 1.45%, respectively, compared to those of the reference model.