In a centrifugal blower (Figure Q1) air enters in to the blower normal to the blades (a1 = 0°), and exits at 40° from the radial direction (∞2=40°). The blower rotates at w = 200 rad/s. The inlet radius r1 = 4 cm, and inlet width b1 = 6 cm. The outlet radius r2 = 10 cm and outlet width b2 = 3 cm. Assuming 100% etticiency and considering 0.2 m3/s flow rate, calculate a) the net head produced by the blower b) the breaking horsepower in watt. (Take density of air Pair = 1.2 kg/m', gravity, g = 9.81 m/52)
In a centrifugal blower (Figure Q1) air enters in to the blower normal to the blades (a1 = 0°), and exits at 40° from the radial direction (∞2=40°). The blower rotates at w = 200 rad/s. The inlet radius r1 = 4 cm, and inlet width b1 = 6 cm. The outlet radius r2 = 10 cm and outlet width b2 = 3 cm. Assuming 100% etticiency and considering 0.2 m3/s flow rate, calculate a) the net head produced by the blower b) the breaking horsepower in watt. (Take density of air Pair = 1.2 kg/m', gravity, g = 9.81 m/52)
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 17RQ: Convert 22C to Fahrenheit.
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In a centrifugal blower (Figure Q1) air enters in to the blower normal to the blades (a1 = 0°), and exits at 40°
from the radial direction (∞2=40°). The blower rotates at w = 200 rad/s. The inlet radius r1 = 4 cm, and inlet width
b1 = 6 cm. The outlet radius r2 = 10 cm and outlet width b2 = 3 cm. Assuming 100% etticiency and considering 0.2
m3/s flow rate, calculate
a) the net head produced by the blower
b) the breaking horsepower in watt.
(Take density of air Pair = 1.2 kg/m', gravity, g = 9.81 m/52)
Transcribed Image Text:V₂.
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Figure Q1.
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