Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Development of 2.5 kW Class Propeller Type Micro Hydraulic Turbine

2.5 kW 급 프로펠러형 마이크로 수차 개발

  • MA, SANG-BUM (Clean Energy R&D Department, Korea Institute of Industrial Technology) ;
  • KIM, SUNG (Clean Energy R&D Department, Korea Institute of Industrial Technology) ;
  • CHOI, YOUNG-SEOK (Clean Energy R&D Department, Korea Institute of Industrial Technology) ;
  • CHA, DONG-AN (Clean Energy R&D Department, Korea Institute of Industrial Technology) ;
  • KIM, JIN-HYUK (Clean Energy R&D Department, Korea Institute of Industrial Technology)
  • 마상범 (한국생산기술연구원 청정에너지시스템연구부문) ;
  • 김성 (한국생산기술연구원 청정에너지시스템연구부문) ;
  • 최영석 (한국생산기술연구원 청정에너지시스템연구부문) ;
  • 차동안 (한국생산기술연구원 청정에너지시스템연구부문) ;
  • 김진혁 (한국생산기술연구원 청정에너지시스템연구부문)
  • Received : 2020.04.27
  • Accepted : 2020.06.30
  • Published : 2020.06.30
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Abstract

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.

Keywords

References

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