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pro00032 - Pipe Flow Problems-II Problem 1: The water...

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Pipe Flow Problems-II Problem 1: The water distribution network shown in figure 1 lies in a horizontal plane. The known pipe characteristics and consumptions are as given. A pump at node A supplies a pressure of 687.4kPa(70.0m of H 2 O) and a pressure sensor at node B reads a gauge pressure of 654.3kPa(66.72m of H 2 O). The elevated storage tank at node C has a free connection to the network, and the water level in the tank is 66.78m above the pipes. The head loss is approximated by the Hazen Williams equation: 85 . 1 63 . 2 ) 278 . 0 ( CD Q L h l = where C is the Hazen Williams coefficient, Q is the flowrate in m 3 /s, L is the pipe length in m and D is the pipe diameter in m. All pipes are 2000 m long and C=100 for all pipes. Determine th consumption in l/s and the pressure in m of water at node E. Note: ignore minor losses. Fig 1 Solution: 150mm B 1 3 2 4 5 6 7 8 300mm 30l/s ? ? 100l/s 300mm 250mm 200mm 250mm 150mm A C D E 200mm
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s L Q Q h s L s m Q Q h P h s L Q Thus s L s m Q Q h s L s m Q Q h CB CB CB L CD CD CD L D AD L AD AC AC AC L AB AB AB L / 6 . 2 25 . 0 * 100 * 278 . 0 2000
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pro00032 - Pipe Flow Problems-II Problem 1: The water...

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