5) A 0.5-m-diameter concrete pipe (5 cm wall thickness with rigid pipe walls and modulus of elasticity of concrete = 1.6

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5 A 0 5 M Diameter Concrete Pipe 5 Cm Wall Thickness With Rigid Pipe Walls And Modulus Of Elasticity Of Concrete 1 6 1 (30.07 KiB) Viewed 28 times

5) A 0.5-m-diameter concrete pipe (5 cm wall thickness with rigid pipe walls and modulus of elasticity of concrete = 1.6*10' N/m?) carries water to a distance of 600 m before discharging it into another reservoir . The surface elevation of the downstream reservoir is 55 m lower than the supply reservoir. A gate valve just upstream of the lower reservoir controls the flow rate. The bulk modulus of elasticity of water is 2.9x10°N/m2. Ignore minor losses and consider friction factor f=0.02. (a) If the valve is closed in 0.65 see, what is the maximum water hammer pressure? (b) If the valve is closed in 5 seconds, what is the maximum water hammer pressure? [15] [5]