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Applied Fluid Mechanics (7th Edition)
- The piping system shown in the figure is to move ethylene glycol at a flow rate of 50 gpm. Follow the suggested design procedure and select a suitable pipe size and pump for the system. A B A: Globe valves (2 of them) B: Union fittings (4 with 2 not shown) C: Plate welded to tank to suppress air entrainment in pump inlet D: Elbows: there are five 90° elbows and two 45° elbows The pipe is all wrought iron, with threaded fittings, schedule 40. Pipe lengths total 35.36 m. Total inlet pipe length from tank to pump is 1.22 m. z1 = 1.22 m and z2 = 3.66 m.arrow_forwardA well is going to be installed with a sucker rod pumping unit a. For the well to be installed with a sucker rod pump calculate the effective plunger stroke length for a well with a rod pump set at 3600 ft. The well has 3/4-in. sucker rods and 2 7/8-in. tubing, and the specific gravity of the produced liquid is 0.90. The pump speed is 12 spm, the plunger is 2 in. in diameter, and the polished rod stroke length is 64 in.The well is pumped off, so the liquid level is at the pump depth. b. For well in part a surface production rate the surface with a rod pump having a volumetric efficiency of 0.8. The oil formation volume factor is 1.2arrow_forwardCalculate the power supplied to the pump shown if its efficiency is 75%. Water is at 25 degrees Celsius is flowing at the rate of 50.0 m3/h. The suction linf is a standard DN 100 Schedule 40 steel pip, 15m long. The total length of DN 50 Schedule 40 steel pipe in the discharge line is 200m. The elbows are tight, the entrance to the pipe is flush and the globe valve is completely open. Draw the line of total and piezometric heights.arrow_forward
- Saturated water at 310K is being pumped from a tank to an elevated tank at the rate of 7L/s. All of the piping is in 5-in. schedule 40 steel pipe. If the 2 fittings used is 90° ell standard long radius, The pump has an efficiency of 80%. Calculate the kW power needed for the pump.arrow_forwardFind the loss in total pressure for each run in the simple duct system of Fig. 1, using the equal-friction method and in English unit. The total pressure available for the duct system is 0.12 in. wg (30 Pa), and the loss in total pressure for each diffuser at the specified flow rate is 0.02 in. wg (5 Pa). Duct fittings are listed in Table 1. Assume the duct dimeter in run 1 is 10 in. and the rest are 8 in. Does the duct system require any adjustment? 150 cfm e. a 15 ft Plenum е 15 ft 5 ft 5 ft a 3. 20 ft 4 10 ft 200 cfm e 10 ft 150 cfm b Duct Fittings for Figure 1 Fittings Type Abrupt Entrance 90 deg Elbow, Pleated Round to Rectangular boot, Straight 45 deg. Converging Wye 45 deg Elbow, Pleated a d earrow_forwardWater is pumped through a vertical 5.0 cm cement-lined steel pipe to an elevated tank on the roof of a building. The measured pressure at the discharge side of the pump is 1380 kPa. What pressure can be expected at a point in the pipe 76 m above the pump when the flow is 9.5 L/s? Use f= 0.023. Include the diagram in your solution. a.100 kPa b.150 kPa c.75 kPA d.225 kPaarrow_forward
- Specify the sizes of pipes (cast iron, schedule 40) and the size of the motor to be used for a pump to lift water at 40 Ips, from reservoir A to reservoir B. Consider the following data: Total static head 50 m Fittings & valves; Suction line 1 foot valve, 1 standard elbow, and 1 gate valve 1 check valve, 1 gate valve, 1 long sweep elbow, and 2 standard elbows Discharge line Length of straight pipes: Suction pipe Discharge pipe Absolute viscosity of water Absolute roughness of cast iron Darcy-Weisbach friction factor Water velocity 300 m 80 m 0.001002 Pa-s 0.00026 m 0.025 1.0 m/s to 2.75 m/s Neglect the head losses in the foot valve and at the pipe exit in the discharge reservoir, and do not use equal sizes for the suction and discharge pipes.arrow_forwardProvide the diagram for the problem. Choose the correct answer and provide complete solution. Water at 60 F from a lake through 500 ft if 4in ID cast iron pipe at a water turbine 250 ft below the surface of the lake. After flowing from the turbine, the water is discharged into the atmosphere through a horizontal 50 ft section of the same pipe. The turbine power output is 10hp when the water in the discharged pipe is flowing at 5 ft/s. A. What is the turbine efficiency defined as the actual power output of the turbine divided by the power output that would be withdrawn if there are no friction within the turbine? a. 86%b. 65%c. 77%d. 50% B. If the turbine were by passed, what would be the flow rate of water through the 500 ft of 4in pipe. a. 45 lb/sb. 37 lb/sc. 52 lb/sd. 29 lb/sarrow_forwardWater at 5°C is to be pumped from the river to the bottom of a water tower. The pump is 5 m above the river (dimension "a" on the diagram below) and is supplied by a 6.00 inch schedule 40 pipe. The tank is 19.5 m above the pump (dimension "b" on the diagram below) and is supplied by a 4 inch schedule 40 pipe. The water level in the tank is 4.3 m above the inlet (dimension "c" on the diagram below). The pump delivers 0.021 m/s. Losses are estimated to be 1.2 m between the river and the pump, and 4.2 m between the pump and the tank. Discharge line Suction line Pump River a) Calculate the losses in the suction line in kPa, based on the given head loss in m. kPa b) Calculate velocity in the suction line in m/s. m/s c) What is the pressure at the inlet to the pump in kPa? kPaarrow_forward
- A submersible pump is to be selected for the installation on a newly drilled deep well. The static water level (SWL) of the water inside the well is 8.7m from the natural ground level and the centerline of the discharge pipeline is 3.5 feet above the natural ground level. Based on the test pumping results from the SWL the flow velocity at the pipeline discharge was 8.09 ft/s and the design pressure is 40 psi to assure that the water can reach the elevated water tank. The total head losses are assumed to be 12 feet. a.) Find the total dynamic head (TDH) of the submersible pump needed for sizing in feet ? b.) What will be the suitable pipe diameter for the system riser in inches?arrow_forwardFor the single pump-pipe system below, what will be the changes for the operating point if we increase the pipe size but decrease the shaft speed of the pump? EB H₂ O The operating point will remain the same. O The operating point will occur either at a higher discharge or at a lower discharge, depending on the specific influence of each change. O The operating point will occur at a higher discharge. O The operating point will occur at a lower discharge.arrow_forwardInclude a free body diagram. pump draws water from a sump through a vertical 6′′ pipe. The pump has a horizontal discharge pipe 4′′ in diameter that is 10.6 ft above the water level in the sump. While pumping 1.25 cfs, gages near the pump at entrance and discharge read —4.6 psi and +25.6 psi, respectively. The discharge gage is 3.0 ft above the suction gage. Compute the horsepower output of the pump and the head lost in the 6′′ suction pipe. (ANSWER: 10.7 Hp, 2.4 ft)arrow_forward
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