The rotor of a centrifugal fan shown in Figure, which was originally d1 = 22.0 in and rotates at w1 = 1200 rev/min and is known to operate with a flow rate of Q1 = 6500 ft3/min, has been replaced. , pressure gain H1 = 1.85 inH2O and power Pot1 = 3.75 hp under normal atmospheric conditions according to the manufacturer's catalog. The new rotor is d2 = 26.0 in and it is required to calculate the new operating parameters of the fan if the speed is increased to w2 = 1800 rev/min to operate in a location with average atmospheric conditions of Patm = 87.0 kPa and T = 33.0°C.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The rotor of a centrifugal fan shown in Figure, which was originally d1 = 22.0 in and rotates at w1 = 1200 rev/min and is known to operate with a flow rate of Q1 = 6500 ft3/min, has been replaced. , pressure gain H1 = 1.85 inH2O and power Pot1 = 3.75 hp under normal atmospheric conditions according to the manufacturer's catalog. The new rotor is d2 = 26.0 in and it is required to calculate the new operating parameters of the fan if the speed is increased to w2 = 1800 rev/min to operate in a location with average atmospheric conditions of Patm = 87.0 kPa and T = 33.0°C.

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