Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on the Performance of the Ring-type Impulse Turbine for Wave Energy Conversion

파력발전용 링타입 임펄스터어빈의 성능 해석

  • HYUN BEOM-SOO (Division of Ocean Systems Engineering, Korea Maritime University) ;
  • MOON JAE-SEUNG (Division of Ocean Systems Engineering, Korea Maritime University) ;
  • HONG SEOK-WON (Maritime and Ocean Engineering Research Institute) ;
  • KIM KI-SUP (Maritime and Ocean Engineering Research Institute)
  • 현범수 (한국해양대학교 해양시스템공학과) ;
  • 문재승 (한국해양대학교 해양시스템공학과) ;
  • 홍석원 (한국해양연구원 해양시스템안전연구센터) ;
  • 김기섭 (한국해양연구원 해양시스템안전연구센터)
  • Published : 2006.02.01
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Abstract

This paper deals with the design and aerodynamic analysis of a so-called 'ring-type' impulse turbine for wave energy conversion. Numerical analysis was performed using the CFD cock, FLUENT. The main idea of the proposed turbine rotor was to minimize the adverse effect of tip clearance of the turbine blade; the design was borrowed from a ducted propeller with connected ring tip for special purpose marine vehicles. Results show that the efficiency increases up to $10\%$, depending on flaw coefficient, with the higher flaw coefficient yielding better efficiency. Decrease of input coefficient CA was the main reason for higher efficiency. Performance of ring-type rotor at various design parameters, as well as flaw conditions, was investigated, and the advantages and the disadvantages of the present impulse turbine were also discussed.

Keywords

References

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