羽根車羽根数を変えた場合の遠心送風機の性能と騒音

概要

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Abstract　Experimental results are presented for the effects of an impeller blade number on the performance and the noise characteristics of a centrifugal turboblower. The impeller changes its blade number as 3, 4, 6, 8, 12 and 24. In general, it becomes high for the efficiency of the blower together with its total pressure as the impeller has more blades. Noticeably, the efficiency tends to nearly constant when the impeller has more than 8 blades, while the total pressure shows a constant tendency as the impeller has more than 12 blades. Specific sound pressure level becomes nearly constant for the case of the impeller having 8-12 blades. In conclusion, the optimal blade number of the test impeller results 12.
山形大学の論文
1984-01-20