Head Loss Calculation in Cast Iron Pipe

What is the head loss due to friction in a 720 m long cast iron pipe with a diameter of 200 mm and a flow velocity of 2 m/s?

Is the Hazen-Williams formula commonly used for calculating head loss in pipes?

Head Loss Calculation in Cast Iron Pipe

The head loss due to friction in a 720 m long cast iron pipe with a diameter of 200 mm and a flow velocity of 2 m/s is 7.925 meters. This value was obtained using the Hazen-Williams formula.

Utilization of the Hazen-Williams Formula

Yes, the Hazen-Williams formula is widely used for calculating head loss due to friction in pipes. It is based on the assumption of fully turbulent flow and takes into account the Hazen-Williams coefficient to represent the roughness of the pipe.

The Hazen-Williams formula is a commonly used method for determining head loss due to friction in pipes. It is represented by the equation:

hL = 10.67 × L × Q^1.85/C^1.85 × D^4.87

Where:

hL = head loss due to friction (m)

L = length of pipe (m)

Q = flow rate of water (m^3/s)

C = Hazen-Williams coefficient

D = diameter of the pipe (m)

In this case, with a pipe length of 720 m, a diameter of 200 mm, and a flow velocity of 2 m/s, the head loss due to friction was calculated as 7.925 meters using the given formula. The Hazen-Williams coefficient for cast iron pipes is approximately 120.85.

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