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

  • 제24권4호
  • /
  • Pages.326-333
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  • 2013
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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양흡입 원심블로어 성능향상을 위한 입구 유동 최적화 연구

Evaluation of Inflow Uniformity on the Performance of Double-Inlet Centrifugal Blower Using Optimal Design Method

  • Lee, Jong-Sung (Environmental Engineering Research Div., Korea Institute of Construction Technology) ;
  • Jang, Choon-Man (Environmental Engineering Research Div., Korea Institute of Construction Technology) ;
  • Jeon, Hyun-Jun (Environmental Engineering Research Div., Korea Institute of Construction Technology)
  • 투고 : 2013.07.30
  • 심사 : 2013.08.31
  • 발행 : 2013.08.31
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초록

This paper presents the performance enhancement of a double-inlet centrifugal blower by the shape optimization of an inlet duct. Two design variables, a length of anti circulation vane and an angles of inlet guide, are introduced to improve the inlet flow uniformity leading to the blower performance. Three-dimensional Navier-Stokes equations are used to analyze the blower performance and the internal flow of the blower. From the shape optimization of the inlet duct of the double-inlet centrifugal blower, the optimal positions of each design variable are determined. Throughout the analysis of sensitivity, it is found that the angle of the inlet guide is more effective than the length of the anti-circulation vane to increase flow uniformity at the outlet of the duct. Efficiency and pressure for the optimal inlet duct shape are successfully increased up to 3.55% and 3.2% compared to those of reference blower at the design flow condition, respectively. Detailed flow field inside the blower is also analyzed and compared.

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참고문헌

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피인용 문헌

  1. Performance Characteristics of the Double-Inlet Centrifugal Blower according to the Shape of an Impeller vol.17, pp.1, 2014, https://doi.org/10.5293/kfma.2014.17.1.028
  2. Performance Characteristics of Double-Inlet Centrifugal Blower According to Inlet and Outlet Angles of an Impeller vol.25, pp.2, 2014, https://doi.org/10.7316/KHNES.2014.25.2.191