Consider an axial flow blower spinning at 4200 rpm with tip and hub diameters of 25 cm and 12.5 cm, respectively. The blower has no inlet guide vanes and the inlet and exit blade angles to the rotor are 75° and 55°, respectively. The inlet velocity is purely axial. The mass flow rate is 0.466 kg/s and the static conditions at the inlet are 101.3 kPa and 35°C. Degree of reaction = 0.6 Exit diameter = 60 cm Blade width at exit = 6.9 cm Blade width at inlet = 7.5 cm Power input into the blower = 4.5 kW Flow rate = 3 m3 /s Exit blade angle = -72 Calculate the degree of reaction and stagnation and static pressure rises through the rotor
Consider an axial flow blower spinning at 4200 rpm with tip and hub diameters of 25 cm and 12.5 cm, respectively. The blower has no inlet guide vanes and the inlet and exit blade angles to the rotor are 75° and 55°, respectively. The inlet velocity is purely axial. The mass flow rate is 0.466 kg/s and the static conditions at the inlet are 101.3 kPa and 35°C. Degree of reaction = 0.6 Exit diameter = 60 cm Blade width at exit = 6.9 cm Blade width at inlet = 7.5 cm Power input into the blower = 4.5 kW Flow rate = 3 m3 /s Exit blade angle = -72 Calculate the degree of reaction and stagnation and static pressure rises through the rotor
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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Consider an axial flow blower spinning at 4200 rpm with tip and hub diameters of 25 cm and 12.5 cm, respectively. The blower has no inlet guide vanes and the inlet and exit blade angles to the rotor are 75° and 55°, respectively. The inlet velocity is purely axial. The mass flow rate is 0.466 kg/s and the static conditions at the inlet are 101.3 kPa and 35°C. Degree of reaction = 0.6 Exit diameter = 60 cm Blade width at exit = 6.9 cm Blade width at inlet = 7.5 cm Power input into the blower = 4.5 kW Flow rate = 3 m3 /s Exit blade angle = -72 Calculate the degree of reaction and stagnation and static pressure rises through the rotor.
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