Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2006.05a
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- Pages.1011-1014
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- 2006
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- 1598-2548(pISSN)
Study on the Noise Characteristic of Centrifugal Fan operating at High Pressure Region
흡입저항이 높은 원심홴 소음특성에 관한 연구
- Published : 2006.05.01
Abstract
Turbo blower generates high peaks when it operates at high pressure region. The fan of the air-cleaner system, operates especially high pressure region due to several filters, generates high noise level. In this case, the tonal sound of BPF makes people annoyance. The blower of air-cleaner has several high resistance filters in its inlet area and rotates above 900rpm Moreover, for the compact design, the size of the blower should be reduced 10%. The reduced diameter of blower makes low flow rate and high noise level. In order to reduce the noise, new blade shape was suggested and optimized