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A mine ventilation fan, running at 295 r/min, delivers500 m3/s of sea-level air with a pressure rise of 1100 Pa.Is this fan axial, centrifugal, or mixed? Estimate its diameterin ft. If the fl ow rate is increased 50 percent for thesame diameter, by what percentage will the pressure risechange?

A mine ventilation fan, running at 295 r/min, delivers500 m3/s of sea-level air with a pressure rise of 1100 Pa.Is this fan axial, centrifugal, or mixed? Estimate its diameterin ft. If the fl ow rate is increased 50 percent for thesame diameter, by what percentage will the pressure risechange?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A mine ventilation fan, running at 295 r/min, delivers
500 m3/s of sea-level air with a pressure rise of 1100 Pa.
Is this fan axial, centrifugal, or mixed? Estimate its diameter
in ft. If the fl ow rate is increased 50 percent for the
same diameter, by what percentage will the pressure rise
change?

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