Jul 10, 2018, 22:19 PM
For a two-speed fan, how is the low speed performance determined?
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The fan laws should be used to determine how a fan would perform on low speed.
CFM(low) = CFM(high) x [RPM(low) / RPM(high)]
Ps(low) = Ps(high) x [RPM(low) / RPM(high)]2
BHP(low) = BHP(high) x [RPM(low) / RPM(high)]3
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