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.
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.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.46P
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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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