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本文讨论了两个问题:1)无级调速与阶段调速相比较,平均可节能约14.5%,2)从节能的角度如何选择离心式通风机的尺寸,并得出经验公式.
This article discusses two issues: 1) Compared with stepless speed regulation, the average energy saving is about 14.5%. 2) How to choose the size of the centrifugal fan from the perspective of energy saving, and draw the empirical formula.