$f (Lid;) Qu² Method 1: [velocity head = u²/2g] → p*g*velocity head Method 2: [L₂ = EqD *d;] → add L + Le Pressure Drop

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F Lid Qu Method 1 Velocity Head U 2g P G Velocity Head Method 2 L Eqd D Add L Le Pressure Drop 1 (247.4 KiB) Viewed 23 times

$f (Lid;) Qu² Method 1: [velocity head = u²/2g] → p*g*velocity head Method 2: [L₂ = EqD *d;] → add L + Le Pressure Drop in Pipelines AP = 8f (L/d;)! Example 1. A pipeline connecting two tanks contains four standard elbows, a globe valve that is fully open, and a gate valve that is half open. The line is commercial steel pipe, 25 mm internal diameter, length 120 m. The properties of the fluid are: viscosity 0.99 mNm-2 s, density 998 kg/m3. Calculate the total pressure drop due to friction when the flow rate is 3500 kg/h. Material Absolute Roughness, mm 0.0015 Drawn tubing Commercial steel pipe Cast iron pipe 0.046 0.26 Concrete pipe 0.3 to 3.0