The power required to pump cooling water to the condenser is 20kW. Cooling water at 20℃ is flowing through CI pipe that is 0.8km long and 0.4m diameter at the rate of 0.07m3/s. Calculate average velocity of flow.Assume f (coefficient of friction) =0.02a)1.88 m/sb)2.589 m/sc)2.889 m/sd)3.889 m/sCorrect answer is option 'A'. Can you explain this answer?

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The power required to pump cooling water to the condenser is 20kW. Cooling water at 20℃ is flowing through CI pipe that is 0.8km long and 0.4m diameter at the rate of 0.07m³/s. Calculate average velocity of flow.

Assume f (coefficient of friction) =0.02

a)
1.88 m/s
b)
2.589 m/s
c)
2.889 m/s
d)
3.889 m/s

Correct answer is option 'A'. Can you explain this answer?

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Verified Answer

The power required to pump cooling water to the condenser is 20kW. Co...

Power P = ρgQhf

20 x 10³ = 10³ x10× 0.07 × hf

hf = 28.57 m

hf =

28.57 =

v = 1.88 m/s.

Note:- f is identified as friction coefficient and F is Darcy Friction Factor.

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The power required to pump cooling water to the condenser is 20kW. Cooling water at 20℃ is flowing through CI pipe that is 0.8km long and 0.4m diameter at the rate of 0.07m3/s. Calculate average velocity of flow.Assume f (coefficient of friction) =0.02a)1.88 m/sb)2.589 m/sc)2.889 m/sd)3.889 m/sCorrect answer is option 'A'. Can you explain this answer?

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