• Journal of the Korean Society of Manufacturing Process Engineers
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• v.9 no.1
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• pp.19-24
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• 2010

The noise of an running industrial fan or blower depends on the type of a fan, the machining accuracy and assembled conditions of each element, and buffs. Many studies have been carried out to reduce the noise through silencer in blower. In this study, 3 types of buffs which have different hole are employed in pipe of blower to study the influence the number and arrangement of buffs on the noise reduction at inlet and outlet in pipe. Commercial engineering software ANSYS was employed to analyze the characteristics and reduction ratio of pressure. Experimental results shows that optimal one can reduce the reduction ratio of noise as much as 16 percents in the laboratory. Good agreement was found between the analysed ratio of noise reduction and those obtained from the experiments.

• The KSFM Journal of Fluid Machinery
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• v.5 no.3 s.16
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• pp.78-83
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• 2002

• The KSFM Journal of Fluid Machinery
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• v.3 no.2 s.7
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• pp.66-77
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• 2000

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.26 no.6
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• pp.481-490
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• 1997

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2013.10a
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• pp.656-657
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• 2013

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.8 no.1
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• pp.71-76
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• 2009

In a running blower, there are various exciting forces which can generate noise. The noise of an running industrial fan or blower depends on the structure of a fan, the machining accuracy of each element, and assembled conditions. Many studies have been carried out to reduce the noise of it. In this study, 3-hole buffs are used in pipe of blower to study the influence the number and position of buffs on the noise reduction at inlet and outlet in pipe. Commercial engineering software ANSYS and SYSNOISE were employed to analyze the characteristics and reduction ratio of pressure. It is concluded that optimal position and number of buffs in pipe of blower to show the least reduction ratio of pressure.

• The KSFM Journal of Fluid Machinery
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• v.11 no.5
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• pp.70-73
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• 2008

• The KSFM Journal of Fluid Machinery
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• v.5 no.3 s.16
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• pp.72-77
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• 2002

• The KSFM Journal of Fluid Machinery
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• v.2 no.3 s.4
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• pp.87-98
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• 1999

• The KSFM Journal of Fluid Machinery
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• v.2 no.3 s.4
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• pp.102-108
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• 1999