Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Optimum design and performance of marine sea water pump with impeller using CFRP

CFRP 임펠러를 사용한 선박용 해수펌프의 최적설계와 성능특성

  • Jeong, Seon Yong (School of Mechanical Engineering, Chungbuk National University) ;
  • Rhi, Seok Ho (School of Mechanical Engineering, Chungbuk National University) ;
  • Seo, Hyoung Seock (Research Institute of Medium & Small Shipbuilding) ;
  • Lee, Kye Bock (School of Mechanical Engineering, Chungbuk National University)
  • Received : 2015.08.05
  • Accepted : 2015.11.06
  • Published : 2015.11.30
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Abstract

Marine sea water pump with impeller using carbon fiber block was developed to prevent the impeller corrosion by the salinity. A numerical analysis was carried out in order to optimize the impeller and volute design for marine sea water pump and to investigate the sensitivity of the related parameters(impeller thickness, surface roughness) using CFD commercial code. The impeller thickness is limited because of the weight. Since the impeller using the carbon fiber lights, the thickness which has a maximum efficiency can be used. The results show that the surface roughness leads to an 7% reduction in pump efficiency.

해수의 접촉이 많은 금속 임펠러는 해수의 염분에 의해 부식이 되므로 탄소섬유로 제작된 임펠러를 사용한 해수펌프가 개발되었다. 해수펌프의 임펠러와 와류실의 최적설계를 수치해석을 통해 수행하였고 관련인자(임펠러 두께, 표면 거칠기)의 영향을 평가하였다. 임펠러의 두께는 무게 때문에 재료에 따라 제한된다. 탄소섬유를 사용한 임펠러는 경량이므로 최대효율을 나타내는 임펠러 두께를 사용할 수 있다. 표면 거칠기의 경우 같은 운전 조건에서 펌프의 효율에 7 % 범위에서 영향을 주는 것을 확인하였다.

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References

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