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Characteristics of Aerodynamic and Noise for Tubular Centrifugal Fan (2nd report) : Effects of Belt Case, Inclination of Blade, Size of Casing and Preventive Plate against Reverse Flow


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Title: Characteristics of Aerodynamic and Noise for Tubular Centrifugal Fan (2nd report) : Effects of Belt Case, Inclination of Blade, Size of Casing and Preventive Plate against Reverse Flow
Authors: Kodama, Yoshio / Futigami, Shinichirou / Hayashi, Hidechito / Mimura, Yujirou
Issue Date: Jul-1999
Citation: 長崎大学工学部研究報告 Vol.29(53) p.157-165, 1999
Abstract: The effects of the belt case, the inclination of blade, the size of casing and the preventive plate of a tubular centrifugal fan on both fan noise and the aerodynamic characteristics are experimentally investigated by using three impellers. The results are summarized as follows : A considerable amount of a rise of pressure and fan efficiency can be expected by using the inclined blade and taking off belt case. Therefore, the specific noise level of the tubular centrifugal fan decrease considerably. In the ratio of casing diameter to impeller diameter is 1.32,the more the distance between the preventive plate against reverse flow and impeller becomes short, the more the fan efficiency and total pressure become high.
URI: http://hdl.handle.net/10069/5068
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 29, No. 53

Citable URI : http://hdl.handle.net/10069/5068

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