Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
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Chapter 12, Problem 12.3PP
In the branched pipe system shown in Fig. 12.8
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Question 8
Two reservoirs are connected by a pipe whose total length is 360m.From the upper reservoir the pipe is 300mm in diameterfor a length of 150m and the remaining 210m is 450mm in diameter.The difference in water levels between the two reservoirs are 8m.Take f=0.006 for the smaller pipe and f=0.005 for the larger pipe.If all the changes in pipe sections are sharp and sudden, calculate the flow rate which can be delivered.
Water at 60°F is pumped from a reservoir to the top of a mountain through a 6-in. Schedule 120 pipe at an average velocity of 12 ft/s. The pipe discharges into the atmosphere at a level 3,000 ft above the level in the reservoir. The pipeline itself is 4,500 ft long. If the overall efficiency of the pump and the motor driving it is 70 percent and the cost of electric energy to the motor is 4 cents per kilowatt hour, what is the hourly energy cost for pumping this water?
Benzene flows through a 100 mm diameter pipe at a mean velocity of 3 m/s. Find discharge in liter per second.
Chapter 12 Solutions
Applied Fluid Mechanics
Ch. 12 - Figure 12.7 shows a branched system in which the...Ch. 12 - Using the system shown in Fig. 12.2 and the data...Ch. 12 - In the branched pipe system shown in Fig. 12.8...Ch. 12 - In the branched-pipe system shown in Fig. 12.9...Ch. 12 - A 160mm pipe branches into a 100mm and a 50mm pipe...Ch. 12 - For the system shown in Fig. 12.11 the pressure at...Ch. 12 - Solve Problem 12.4 using the Cross technique.Ch. 12 - Solve Problem 12.3 using the Cross techniqueCh. 12 - Find the flow rate of water at 60Fin each pipe of...Ch. 12 - Figure 12.13 represents a spray rinse system in...
Ch. 12 - Figure 12.14 represents the water distribution...Ch. 12 - Figure 12.15 represents the network for delivering...Ch. 12 - Work Problem 12.4 using PIPE-FLO software. Display...Ch. 12 - 2. Enhance the program from Assignment 1 so that...Ch. 12 - Write a program or a spreadsheet for analyzing...
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- water is being delivered at a rate of 2000 gpm for a reservoir to a subdivison below resvoir height=220ft length of pipe= 1500ft final aubdivisiion= 24ft, 20psi 1)determine the normal pipe size 2) if the pipe size is not avalible what size combination will work 3) if we used a 8 inch pipe determine the min thickness 4)determine the max pressure that can deelope in the 8in systemarrow_forwardWater is pumped thru a vertical 50mm new galvanized-iron pipe to an elevated tank on the roof of a building.The pressure on the discharge side of the pump is 1400kpa. What pressure can be expected at a point in the pipe 75mm above the pump when the flow is 9 liters/sec?arrow_forwardHYDRAULICS Benzene flows through a 100 mm diameter pipe at a mean velocity of 3 m/s. Find discharge in liter per second.arrow_forward
- The velocity measurement observation manometer readings are 44.5 cm , 48.5 cm . The pipe diameter is 139 mm. Calculate the discharge of the flowing fluid.arrow_forwardA pumping station wet well operates between 540- and 550-ft elevation. The pump curve is deϐined by the following points: 80 ft at zero ϐlow, 78 ft at 200 gpm, 65 ft at 800 gpm, and 50 ft at 1200 gpm. The pump discharge contains an equivalent of 50 ft of 6-in. pipe. The discharge pipe is 120-ft long and terminates at a splitter box, elevation 570. Using C=100, plot the pump curve and the corrected pump curve. Plot the pump discharge curves at each wet well elevation and for C=100 and C=140. What is the pump ϐlow at the low and high wet well elevations for newand old pipe?arrow_forwardMeasure the volumetric flow rate of water coming out of a faucet. Also determine the average velocity of water leaving the faucet.arrow_forward
- 18.A venture meter is a device that uses a constriction in a flow system to measure the velocity of flow, Figure 12 illustrate one type design. If the main pipe section is a standard hydraulic copper tube having a 100-mm outside diameter x 3.5-mm wall thickness, compute the volume flow rate when the velocity there is 3.0 m/s. Then, for that volume flow rate, specify the required size of throat section that would make the velocity there at least 15.0 m/s.arrow_forwardInside a pipe with a constant cross section, water flows. Calculate the total number of lost heads in (ft). Between suction and discharge is a 100-foot elevation difference.arrow_forwardWater at 15°C is flowing in a 3 inch horizontal Schedule 40 steel pipe at a pressure of 102 kPa. The pipe reduces to a 1.5 inch Schedule 40 steel pipe. What is the flow rate if pressure in the 1.5 inch pipe is 99.8 kPa?arrow_forward
- The velocity measurement observation manometer readings are 44.5 cm , 49 cm . The pipe diameter is 126 mm. Calculate the discharge of the flowing fluid. Discharge in m3/sarrow_forwardWater at 100°F is flowing through a straight 4-in schedule 40 pipe at a rate of 1 gal/min. The length of the pipe is 10 ft, find the velocity at the center of the pipe in feet per second?A. 0.0378B. 0.0504C. 0.0454D. 0.0252arrow_forwardWhat is the Reynolds # of the flow.? Water @ 15C is transported from a large open tank to the bottom of another open tank above. The surfaces of the two tanks are kept at 160ft apart vertically. The pipes used have an ID of 3.5 inches, and a total length of the pipe used is 150ft. In the system, there are two fully open gate valves, 6 90° elbows, and 2 standard tees. The pump used has a mechanical efficiency of 60%, and the volumetric flow rate of water is at 35 (ft^3)/s. Assume frictional losses frm sudden contraction and expansion are negligible.arrow_forward
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