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Dima020 [189]
3 years ago
13

Water flovs in a pipe of diameter 150 mm. The velocity of the water is measured at a certain spot which reflects the average flo

w velocity. A pitot static tube has a meter coefficient of C = 1,05 and is joined to a mercury manometer indicating a reading of 167 mm. Determine the flow rate of the water.
Engineering
1 answer:
Yuliya22 [10]3 years ago
4 0

Answer:

Q = 0.118 m^{3}/s

Explanation:

Given :

diameter of the pipe, d = 150 mm

                                       = 0.15 m

Pitot tube co efficient, C_{v} = 1.05

manometer reading is given, x = 167 mm

                                                   = 0.167 m

From manometer reading,we can find the difference between the manometer height, h

 h =x\times\left [ \frac{S_{m}}{S_{w}}-1 \right ]

h =0.167\times\left [ \frac{13.6}{1}-1 \right ]

h = 2.1042 m

Now, average velocity is v = C_{v}\sqrt{2.g.h}

                                            = 1.05\times \sqrt{2\times 9.81\times 2.1042}

                                            = 6.74 m/s

Area of the pipe, A = \frac{\pi }{4}\times d^{2}

                                = \frac{\pi }{4}\times 0.15^{2}

                                = 0.0176 m^{2}

Therefore, flow rate is given by, Q = A.v

                                                          = 0.0176 X 6.74

                                                          = 0.118m^{3}/s

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