Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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Study on improvements for flows near cut-off region in blower

송풍기 설부 주변 유동의 개선에 관한 연구

  • Published : 2003.03.01
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Abstract

The present study has conducted the analysis of flows in a blower with double suction. The air handling system is for supplying air flows into a plant. The present system has a couple of impellers in axial direction for enhanced flow rate. Main interest lies on the improvements of static pressure rise and total efficiency of the system. The present treatment of the reform is to secure a spatial distance between the fan and the casing of the system and change the shape of the cut-off part. The resultant performance after the reform shows increased pressure-rise and efficiency of the system

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References

  1. Whght, T. G., Fluid Machinery, CRC press, New York (1999), p. 61
  2. Eck, B., Fans, Pergamon press (1976), p. 107
  3. Neise, W.,GenerationMethod,"Symposium, (1992), P.45'Review of Fan Noise Mechanism and An International Control INCE
  4. Cau, G., Mandas, N., Manfrida., G., and Nurzia, F., 'Measurement of Phmary and Secondary Flows inForward-Curved Centrifugal Fan,' J. Fluids Engineehng, 109, (1987), p. 353an Industrial
  5. Mohnushi, K., 'The Influence of Geometric Parameters on F.C Centrifugal Fan Noise' Trans. ASME, Journal of Vibration, Acoustics, Stress, and Reliability in Design, 109, (1987), p.227
  6. Morinushi, K, 'Noise Source of aMultiblade Fan,' JSME, 57, (1991), p.3834
  7. Raj, D., and Swim, W. B., 'Measurements of the Mean Flow Velocity and Velocity Fluctuation at the Exit of a FC Centrifugal Fan Rotor,' Joumal of Engineering for Power, 103, (1981), p.393
  8. CD-adapco Korea, STARU-CD User Guide Manual, CD-adapco (1998)
  9. Konieczny, J. P., and Bolton, S., 'Design of Low-noise Centhfugal Blowers - Part2 :Optimization Study', Noise Control Engineering J., 43, (1995), p. 117