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Water flows from the ground floor to the third floor in a 4-storey building through a pipe 50 mm in diameter at a rate of 2 L/s and according to the diagram below.  The water flows out from the system through a tap with an opening diameter of 15 mm. Q. Calculate the total energy loss due to friction through the system

Water flows from the ground floor to the third floor in a 4-storey building through a pipe 50 mm in diameter at a rate of 2 L/s and according to the diagram below.  The water flows out from the system through a tap with an opening diameter of 15 mm. Q. Calculate the total energy loss due to friction through the system

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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Water flows from the ground floor to the third floor in a 4-storey building through a pipe 50 mm in diameter at a rate of 2 L/s and according to the diagram below.  The water flows out from the system through a tap with an opening diameter of 15 mm.

Q. Calculate the total energy loss due to friction through the system

Friction factor, f 0.1 0.01 0.001 Laminar 1.E+02 1.E+03 I + i i T Transition . T i 1.E+04 Moody Diagram 1.E+05 Re Turbulent 1.E+06 1.E+07 1.E+08 1.E+09 ε/D -5.00E-02 -4.00E-02 -3.00E-02 -2.50E-02 -2.00E-02 -1.50E-02 -1.00E-02 -8.00E-03 -6.00E-03 -4.00E-03 -3.00E-03 -2.00E-03 -1.50E-03 -1.00E-03 -8.00E-04 -4.00E-04 2.00E-04 -1.00E-04 -5.00E-05 -1.00E-05
Transcribed Image Text:Friction factor, f 0.1 0.01 0.001 Laminar 1.E+02 1.E+03 I + i i T Transition . T i 1.E+04 Moody Diagram 1.E+05 Re Turbulent 1.E+06 1.E+07 1.E+08 1.E+09 ε/D -5.00E-02 -4.00E-02 -3.00E-02 -2.50E-02 -2.00E-02 -1.50E-02 -1.00E-02 -8.00E-03 -6.00E-03 -4.00E-03 -3.00E-03 -2.00E-03 -1.50E-03 -1.00E-03 -8.00E-04 -4.00E-04 2.00E-04 -1.00E-04 -5.00E-05 -1.00E-05
(1) 1.5 m 90⁰ 90⁰ 1.5 m 3.5 m 1.5 m Glove valve 90⁰ - density of water, 1 g/cm³ - consider absolute pressure 90⁰ - loss coefficient of 450 elbow, K₁=0.4 - loss coefficient of glove valve, K₁=10 - loss coefficient of tap, KL=2 - dynamic viscosity of water, 1.12x10-3 kg/m.s 2.5 m 3.5 m 45° 4 m 90° Considering the following additional data and the Moody diagram below: -pipe is made of plastic with roughness coefficient Ks=0.03 mm - loss coefficient of 90° elbow, KL=0.9 3.0 m 90⁰ 45⁰ 2.5 m 3.0 m 1.5 m Glove valve Tap (2)
Transcribed Image Text:(1) 1.5 m 90⁰ 90⁰ 1.5 m 3.5 m 1.5 m Glove valve 90⁰ - density of water, 1 g/cm³ - consider absolute pressure 90⁰ - loss coefficient of 450 elbow, K₁=0.4 - loss coefficient of glove valve, K₁=10 - loss coefficient of tap, KL=2 - dynamic viscosity of water, 1.12x10-3 kg/m.s 2.5 m 3.5 m 45° 4 m 90° Considering the following additional data and the Moody diagram below: -pipe is made of plastic with roughness coefficient Ks=0.03 mm - loss coefficient of 90° elbow, KL=0.9 3.0 m 90⁰ 45⁰ 2.5 m 3.0 m 1.5 m Glove valve Tap (2)
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