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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Performance Comparison Evaluation of a Regenerative Pump with S-Shaped Continuous Impeller

'S' 형상의 연속형 임펠러를 갖는 재생형 펌프의 성능 비교평가

  • JEON, SEOK-YUN (Department of Mechanical Engineering, Hanyang University) ;
  • LEE, SANG-MOON (Division of Environmental and Plant Engineering, Korea Institute of Civil Engineering and Building Technology) ;
  • YOON, JOON-YONG (Department of Mechanical Engineering, Hanyang University) ;
  • JANG, CHOON-MAN (Division of Environmental and Plant Engineering, Korea Institute of Civil Engineering and Building Technology)
  • 전석윤 (한양대학교 대학원 기계공학과) ;
  • 이상문 (한국건설기술연구원) ;
  • 윤준용 (한양대학교 대학원 기계공학과) ;
  • 장춘만 (한국건설기술연구원)
  • Received : 2018.04.05
  • Accepted : 2018.04.30
  • Published : 2018.04.30
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Abstract

Performance evaluation of a regenerative pump has been compared with a conventional open channel impeller and a S-shaped continuous impeller designed newly. To analyze flow field for both pumps, analysis code, CFX, is employed. Unstructured grids are used to represent a composite geometryincluding blade, casing and ducts. Throughout the comparisons between numerical simulation and experiments, the predicted efficiency has a good agreement with the experimental one. It is noted that the pump having a S-shaped continuous impeller is about 4.8 percent more efficient than conventional one, which is due to the relatively large pressure increase. Detailed flow field inside the pump is also analyzed and compared.

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References

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