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The impeller of a centrifugal blower has an exit diameter of 0.6 m, B2 = 30°, and operates at 3600 rpm. Air enters the blower axially at a pressure of 100 kPa at a temperature of 25°C into an inlet with a diameter of 0.2 m. The mass flow rate is 1 kg/s and the blade width is 5 cm. If the density at exit is 1.14 kg/m, compute the value of 1) B1, 2) power input, 3) the static pressure rise across the compressor assuming isentropic compression, 4) Total pressure rise. Take Cp = 1000 J/kgK and Ra = 287 J/kgK. %3D

The impeller of a centrifugal blower has an exit diameter of 0.6 m, B2 = 30°, and operates at 3600 rpm. Air enters the blower axially at a pressure of 100 kPa at a temperature of 25°C into an inlet with a diameter of 0.2 m. The mass flow rate is 1 kg/s and the blade width is 5 cm. If the density at exit is 1.14 kg/m, compute the value of 1) B1, 2) power input, 3) the static pressure rise across the compressor assuming isentropic compression, 4) Total pressure rise. Take Cp = 1000 J/kgK and Ra = 287 J/kgK. %3D

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The impeller of a centrifugal blower has an exit diameter of 0.6 m, B2 = 30°, and operates at 3600 rpm. Air enters the blower axially at a pressure of 100 kPa at a temperature of 25°C into an inlet with a diameter of 0.2 m. The mass flow rate is 1 kg/s and the blade width is 5 cm. If the density at exit is 1.14 kg/m, compute the value of 1) B1, 2) power input, 3) the static pressure rise across the compressor assuming isentropic compression, 4) Total pressure rise. Take C, = 1000//kgk and Ra = 287//kgK.
Transcribed Image Text:The impeller of a centrifugal blower has an exit diameter of 0.6 m, B2 = 30°, and operates at 3600 rpm. Air enters the blower axially at a pressure of 100 kPa at a temperature of 25°C into an inlet with a diameter of 0.2 m. The mass flow rate is 1 kg/s and the blade width is 5 cm. If the density at exit is 1.14 kg/m, compute the value of 1) B1, 2) power input, 3) the static pressure rise across the compressor assuming isentropic compression, 4) Total pressure rise. Take C, = 1000//kgk and Ra = 287//kgK.
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