한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지

원심형 송풍기에 있어서 전향익과 후향익에 따른 성능 특성에 관한 연구

Study on Characteristics of Performance according to Backward and Forward Blades in Centrifugal Blower

  • 김재원 (선문대학교 기계공학부) ;
  • 박진원 (선문대학교 대학원 기계공학부)
  • 발행 : 2004.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Comprehensive investigation according to the two kinds of blades is systematically carried out for a design of the centrifugal blower. The motivation of this work is due to demand of enhanced flow rate with higher inlet pressure, such as air purifiers adopting several filters. It is observed that flow rate of the blower with forward blades is larger than that of the system with backward blades. The reason is due to larger outlet velocity from the rotating forward blades and the tendency is validated by a parallel experiment with a wind tunnel. Numerical analysis for the blower system shows detail information between the blades and inside the casing. A series of figures to show the flow details offers deep understanding of a centrifugal blower with the two different blades.

키워드

참고문헌

  1. Wright, T.G., Fluid Machinery, CRC press, New York (1999), p.61
  2. Eck, B., Fans, Pergamon press (1976), p.107
  3. Cau, G., Mandas, N., Manfhda., G., and Nurzia, F., 'Measurement of Phmary and Secondary Flows in an Industrial Forward-Curved Centhfugal Fan, /.Ftuids Engineering, Vo1.109, (1987), p.353
  4. Mohnushi, K., 'The Influence of Geometric Parameters on F.C Centrifugal Fan Noise,' Trans. ASME, JournaI of Vibration, Acoustics, Stress, and Reliability in Design, Vo1.109, (1987), p.227
  5. Morinushi, K, 'Noise Source of a Multiblade Fan,' JSME, Vo1.57, (1991),p.3834
  6. Raj, D., and Swim, W.B., 'Measurements of the Mean Flow Velocity and Velocity Fluctuation at the Exit of a FC Centrifugal Fan Rotor,' Journal of Engineering for Power, Vol.lOS, (1981), p.393
  7. Konieczny, J.P., and Bolton, S., 'Design of Low-noise Centrifugal Blowers - Part2 : Optimization Study', Noise Controt Engineering J., 43, (1995), p.117
  8. ASHRAE Standard, 'Laboratory Methodsof Testing Fans for Rating,' Amehcan Society of Heating, Refrigerating and Air-Conditioning Engineers (1985)
  9. Korea Standard Association, 'Testing Methods of Industrial Fans,' (KS B 6311),(1992), p. 1
  10. CD-adapco Korea, STAR-CD User Guide Manuat, CD-adapco (1998)
  11. Fukano, T., Kodama, H., and Takamatsu, Y. 'Noise generated by low pressure axial flow fans, I : Modelling of turbulent noise,' Journal of Sound and Vibration, Vol. 50, (1997), pp. 63
  12. Jeon, Wan-Ho, 'Analysis of the generation and radiation of the fan noiseby using commercial CFD code,' Journal of FIuid Machinery, Vol. 5, (2002), pp. 13
  13. Harada, S., FIuid Machinery, Asakura publishing company, Tokyo, (1986), p.188