Problem : Start from vesel 1 , a fluid is pumped to vesel2 (70 ft above vessel1), both vessel are open, through 12 in ID pipe at a rate of 400 gallons/minute. The pipe has 1 elbow at suction line, 1 elbow and 1 orifice meter at discharge line. Suppose friction losses of fitting is given by F=K2V2 and KelD=0,15 for elbow, Ken=0,5 for sudden enlargement and Kcon=1,0 for sudden contraction. The fluid's vapor pressure 13,7lb/in2, the density of 0,962,3lbm/ft3, the viscosity 1cP= 6,72104lbbm/ft.s,g=32.2ft/s2,gc=32,2lbm.ft/b1.s2. The performa curve of the centrifugal pump and the coeffient of discharge of the orifice are given below. Suppose pipe roughness D/=400;1 gallon =0.133681 cubic feet. Questions : 1. Use the pump's performa curve above. Then a) Calculate the allowable suction lift ( ft ) of the pump, for the pump to work without cavitation; The pipe has vertical and horizontal section. Suppose the pipe consist of 5ft horizontal suction line, 5ft horizontal discharge line, and vertical line in both suction line and discharge line, then b). Sketch the pumping system; c). Calculate the total length of the pipe; d). Compare the friction loses head (pipe, sudden contraction, elbow), the velocity head in the suction line to the elevation head. Are they nealiaible? Problem : Start from vesel 1 , a fluid is pumped to vesel2 (70 ft above vessel1), both vessel are open, through 12 in ID pipe at a rate of 400 gallons/minute. The pipe has 1 elbow at suction line, 1 elbow and 1 orifice meter at discharge line. Suppose friction losses of fitting is given by F=K2V2 and KelD=0,15 for elbow, Ken=0,5 for sudden enlargement and Kcon=1,0 for sudden contraction. The fluid's vapor pressure 13,7lb/in2, the density of 0,962,3lbm/ft3, the viscosity 1cP= 6,72104lbbm/ft.s,g=32.2ft/s2,gc=32,2lbm.ft/b1.s2. The performa curve of the centrifugal pump and the coeffient of discharge of the orifice are given below. Suppose pipe roughness D/=400;1 gallon =0.133681 cubic feet. Questions : 1. Use the pump's performa curve above. Then a) Calculate the allowable suction lift ( ft ) of the pump, for the pump to work without cavitation; The pipe has vertical and horizontal section. Suppose the pipe consist of 5ft horizontal suction line, 5ft horizontal discharge line, and vertical line in both suction line and discharge line, then b). Sketch the pumping system; c). Calculate the total length of the pipe; d). Compare the friction loses head (pipe, sudden contraction, elbow), the velocity head in the suction line to the elevation head. Are they nealiaible