Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on the Flow Characteristics of Axial Flow Fan with Centrifugal Sub-Blade

원심형 보조날개를 부착한 축류홴의 유동특성에 관한 실험적 연구

  • Lee, Sukjong (Graduate School of Energy and Environment, Seoul National University of Science and Technology) ;
  • Sung, Jaeyong (Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology) ;
  • Lee, Myeong-Ho (Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology)
  • 이석종 (서울과학기술대학교 에너지환경대학원) ;
  • 성재용 (서울과학기술대학교 기계자동차공학과) ;
  • 이명호 (서울과학기술대학교 기계자동차공학과)
  • Received : 2013.07.19
  • Accepted : 2013.08.19
  • Published : 2013.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new type axial flow fan with centrifugal sub-blades has been designed and fabricated in the present study. We investigated velocity and pressure distributions in downstream flow fields of the fan experimentally to detect the detailed flow characteristics of new axial flow fan and an existing axial flow fan. Two-dimensional velocity components were probed by applying a particle image velocimetry system and pressure distributions were measured by Pitot tube and micro-manometer. Our results show that the velocity and pressure distributions at the flow fields of the new fan are quite different from the existing fan, and that the centrifugal sub-blades in the new fan can improve the performance characteristics in view of kinetic energy.

Keywords

References

  1. Lee, S. H. and Ahn, C. O., 2004, Design Optimization of Axial Flow Fan Using Genetic Algorithm, Journal of Fluid machinery, Vol. 8, No. 3, pp. 7-14.
  2. Yim, D. W., Ahmed, N. A., Lee, M. H. and Milton, B. E., 2002, Effect of tip Leakage Flow on an Isolated Rotor of an Axial Compressor, Proceedings of the Second National Congress on Fluids Engineering, pp. 619-622.
  3. Lee M. H. and Jeong, J. G., 2004, An Analysis of the Flow Characteristics in the Tip Clearance of Axial Flow Rotor, Journal of Korean Society of Marine Engineers, Vol. 28, No. 5, pp. 735-745.
  4. Choi, J. G., Lee, S. J., Lee, M. H. and Sung, J., 2006, Analysis of Flow Characteristics on the Axial Flow Fan with Centrifugal Blade, Journal of Korean Society of Marine Engineers, Vol. 30, No. 5, pp. 589-596.
  5. Yoon, J., Sung, J. and Lee, M. H., 2012, Velocity Profiles and Friction Coefficients in Circular Open Channels, Journal of Hydraulic Research, Vol.50, No.3, pp.304-311. https://doi.org/10.1080/00221686.2012.673745