送風および集塵機能を併せ持つフィルタファン用羽根車の開発 : 集塵性能および騒音性能に及ぼす羽根車形状の影響(流体工学,流体機械)

概要

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This paper follows the previous paper which reported flow rate characterstics of the filter fan for an air cleaner. This paper is concerned with filtration performance as well as with sound level performance. Filtration efficiency, which is defined as the ratio of floating particles in air to captured particles by filter fan, becomes higher as diameter ratio becomes smaller. The maximum filtration efficiency is 0.90 in the cases of radial filter profile with diameter ratio of 0.35 and inclined backward pofile with diameter ratio of 0.50. According to the previous paper, the largest flow rate occured in the case of diameter ratio of 0.50. Then, investigations are made into sound pressure levels in three cases of filter profile at diameter ratio of 0.50, i.e. radial profile, inclined forward profile and inclined backward profile. In conclutsion, the best profile of filter fan is one with an inclined backward filter profile and diameter ratio 0.50.
一般社団法人日本機械学会の論文
2005-08-25