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Fan efficiency

Thread starter duke962
Start date Apr 13, 2001

Status: Not open for further replies.

Apr 13, 2001

duke962

Chemical

I have been told it is more efficient to throttle the air flow in duct work on the suction side of a fan rather than the discharge side. Why is this true? Also if two fans are connected in series by a piece of duct work, how do they effect one another?