Problems-flow-F - Pumping System ChE 4253 - Design I Z=25 m...

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Unformatted text preview: Pumping System ChE 4253 - Design I Z=25 m Z=10 m Z=0 P atm P atm Suction line length (including fittings equivalent lengths) 12.0 m Discharge line length (including fittings equivalent lengths) 50.0 m ID of the suction pipe 0.4064 m, ID of the discharge line 0.3556 m Water flow at 0.75 m 3 /min. The Fanning friction factor can be assumed at 0.008. Pumping System (a) Find the friction loss in the suction side of the pump. (b) What is the pump inlet pressure? (c) What is the power necessary to drive the pump? 1 atm= 101,325 Pascal. =1,000 kg/m 3 , g=9.81 m/s 2 . Use the Bernoulli Equation: ChE 4253 - Design I ( 29 - = - + - +- F W V V p p Z Z g o 2 2 1 2 2 1 1 2 2 1 2 Pumping System (a) Find the friction loss in the suction side of the pump. The friction loss is given by: ChE 4253 - Design I L D f V F 2 2 = Need to calculate velocity: V=(4/ D 2 ) Q =(4/ 0.4064 2 ) 75 m/min = 9.636 m/s and F=2 * 9.636 2 * 0.008 * 12 / 0.4064 =43.87 m 2 /s 2 Pumping System...
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Problems-flow-F - Pumping System ChE 4253 - Design I Z=25 m...

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