| 摘要 |
PURPOSE: To operate a multiple radial fan impeller in the maximum efficiency obtained systematically. CONSTITUTION: A multiple radial fan impeller is operated so that a capacity coefficientϕis 0.295ε(1-nt/(2πr))ξ<1.641> , where 0.75<=ε<=1.25, n: number of radial blades, t: wall thickness of radial blades, r: radius of impeller, andξ: inner and outer diameter ratio of impeller).
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