A reducing elbow is used to deflect water flow at a rate of 95 kg/s in a horizontal pipe upward 45° while accelerating it (Figure below). The elbow discharges water into the atmosphere (ρ= 1000 kg/m3). The crosssectional area of the elbow is 113 cm2 at the inlet and 7 cm2 at the outlet. The elevation difference between the centers of the outlet and the inlet is 30 cm. The weight of the elbow and the water in it is considered to be negligible. Determine (a) the gage pressure at the center of the inlet of the elbow and (b) the anchoring force FRZ needed to hold the elbow in place.
A reducing elbow is used to deflect water flow at a rate of 95 kg/s in a horizontal pipe upward 45° while accelerating it (Figure below). The elbow discharges water into the atmosphere (ρ= 1000 kg/m3). The crosssectional area of the elbow is 113 cm2 at the inlet and 7 cm2 at the outlet. The elevation difference between the centers of the outlet and the inlet is 30 cm. The weight of the elbow and the water in it is considered to be negligible. Determine (a) the gage pressure at the center of the inlet of the elbow and (b) the anchoring force FRZ needed to hold the elbow in place.
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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A reducing elbow is used to deflect water flow at a rate of 95 kg/s in a horizontal pipe upward 45° while accelerating it (Figure below). The elbow discharges water into the atmosphere (ρ= 1000 kg/m3). The crosssectional area of the elbow is 113 cm2 at the inlet and 7 cm2 at the outlet. The elevation difference between the centers of the outlet and the inlet is 30 cm. The weight of the elbow and the water in it is considered to be negligible. Determine
(a) the gage pressure at the center of the inlet of the elbow and
(b) the anchoring force FRZ needed to hold the elbow in place.
Transcribed Image Text:Patm
FR:
30 cm
145°
CV
P1.gage
Transcribed Image Text:0.1
0.09
Wholly turbulent flow f = ¢(ɛ/D)
0.08
0.07
0.05
0.04
0.06
0.03
0.05
0.02
0.015
0.04
0.01
0.008
0.006
S 0.03
0.004
0.025
0.002
0.02
Laminar
flow
0.001
0.0008
0.0006
0.015
0.0004
Smooth
0.0002
Transition range
0.0001
0.01
0.00005
0.009
0.008
2(10)
4 68
2(10)
468
2(10)
2(10
0.00001
468
2(10) 4 6 8
10
10
10
10
10
Re eVD
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