Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
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Chapter 11, Problem 11.10PP
In a processing plant, ethylene glycol at
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Q.3) Determine the energy loss that will occur as 100 Liters / min of water flows from a small copper tube to a larger tube through a gradual enlargement having an included angle of 30 degrees. The small tube has a 25 mm OD x 1.5 wall thickness; the large tube has an 80 mm OD x 2.8 mm wall thickness.
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.
Q2(c) Water flows at a rate of 12 L/s in an 80 mm diameter of galvanized pipe installed in a vertical plane shown in Figure Q2(c). The pipe length from point 1 to point 2 is 85 m, and the 90degree elbow has km = 1.0, while the globe valve has km = 10. Given friction factor, f = 0.0070. Calculate the pressure at point 2.
Chapter 11 Solutions
Applied Fluid Mechanics
Ch. 11 - Water at 10C flows from a large reservoir at the...Ch. 11 - For the system shown in Fig. 11.14, kerosene (...Ch. 11 - Figure 11.15 shows a portion of a hydraulic...Ch. 11 - Figure 11.16 shows part of a large hydraulic...Ch. 11 - Oil is flowing at the rate of 0.015m3/s in the...Ch. 11 - For the system shown in Fig. 11.18, calculate the...Ch. 11 - A liquid refrigerant flows through the system,...Ch. 11 - Water at 100F is flowing in a 4-in Schedule 80...Ch. 11 - A hydraulic oil is flowing in a drawn steel...Ch. 11 - In a processing plant, ethylene glycol at 77F is...
Ch. 11 - Water at 15C is flowing downward in a vertical...Ch. 11 - Turpentine at 77F is flowing from A to B in a 3...Ch. 11 - ]11.13 A device designed to allow cleaning of...Ch. 11 - Kerosene at 25C is flowing in the system shown in...Ch. 11 - Water at 40C is flowing from A to B through the...Ch. 11 - Oil with a specific gravity of 0.93 and a dynamic...Ch. 11 - Determine the required size of new Schedule 80...Ch. 11 - What size of standard hydraulic copper tube from...Ch. 11 - Water at 60F is to flow by gravity between two...Ch. 11 - The tank shown in Fig. 11.24 is to be drained to a...Ch. 11 - Figure 11.25 depicts gasoline flowing from a...Ch. 11 - For the system in Fig. 11.26, compute the pressure...Ch. 11 - For the system in Fig. 11.26, compute the total...Ch. 11 - For the system in Fig. 11.26 specify the size of...Ch. 11 - A manufacturer of spray nozzles specifies that the...Ch. 11 - Specify the size of new Schedule 40 steel pipe...Ch. 11 - Refer to Fig. 11.27. Water at 80C is being pumped...Ch. 11 - For the system shown in Fig. 11.27 and analyzed in...Ch. 11 - In a water pollution control project, the polluted...Ch. 11 - Repeat Problem 11.29, but use a 3-in Schedule 40...Ch. 11 - Water at 10C is being delivered to a tank on the...Ch. 11 - If the pressure at point A in Fig. 11.29 is 300...Ch. 11 - Change the design of the system in Fig. 11.29 to...Ch. 11 - It is desired to deliver 250 gal/min of ethyl...Ch. 11 - For the system shown in Fig. 11.30, compute the...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Figure 11.31 depicts a DN 100 Schedule 40 steel...Ch. 11 - Repeat Problem 11.38 but replace the globe valve...Ch. 11 - Repeat Problem 11.38 but use a DN 125 Schedule 40...Ch. 11 - Repeat Problem 11.38, but replace the globe valve...Ch. 11 - It is desired to drive a small,...Ch. 11 - Figure 11.32 shows a pipe delivering water to the...Ch. 11 - Repeat Problem 11.43, except consider that there...Ch. 11 - A sump pump in a commercial building sits in a...Ch. 11 - For the system designed in Problem 11.45, compute...Ch. 11 - Figure 11.33 shows a part of a chemical processing...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - Analyze the system shown in Fig. 11.11 with...Ch. 11 - Create a program or a spreadsheet for analyzing...Ch. 11 - Create a program or a spreadsheet for determining...
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- The 1/2 inch diameter hose can withstand a maximum pressure of 200 psi without breaking. Determine the maximum allowable length if the friction factor is 0.0022 and the flow rate is 0.010 cfs. Do not take into account minor losses.arrow_forwardWater at 70F passes through 0.75-in-internaldiameter copper tubes at a rate of 0.5 lbm/s. Determine the pumping power per ft of pipe length required to maintain this flow at the specified rate.arrow_forwardWater flow at a 250mm diameter horizontal pipe. The friction factor is 0.023. If the pressure at the starting point is 80KPa and the pressure at the end point is 50KPa. Determine the discharge at the pipe.arrow_forward
- A pipe has a diameter D and a friction factor f. Assume that f is constant due to a very large reynolds number. By what percent will the pressure drop in the pipe increase if the volume flow is doubled?arrow_forwardThe lengths of two pipes with the same friction factor, "f," are parallel. What must the flow ratio be if the first pipe has twice the diameter of the second?arrow_forward1) 2) Determine the Reynolds number in the pipe system and the significance of this Information? 3) Using Bernoulli’s equation, find the water pressure at point C? 4) Determine the head losses accumulated by the fluid when flowing in the pipeline? 5) Calculate the energy that the fluid will lose after passing through the turbine by applying theenergy equation? 6)If the used turbine converts only two-thirds of the energy that the fluid will lose after passing through the turbine, what is the efficiency of this turbine? 7) Identify the most common water turbines and the limitations that exist within these differenttypes? 8) Although hydraulic turbines considered one of the most efficient power plants, theirecological impact is a big concern. Discuss this issue and suggest remedies for such problems by writing 100 words at least?arrow_forward
- Q.4) Differentiate between major and minor losses in pipes.arrow_forwardThe pressure loss through the pipe and the minimum power required to overcome the resistance to flow.arrow_forwardIn the figure shown, the inside diameters of the pipe at sections 1 and 2 are 250mm and 500mm, respectively. Water with a unit weight of 9.59 kN/m3 is flowing with an average velocity of 8 m/s at section 1. Find the Mass Flow Rate.arrow_forward
- Given below are pipe lengths, sizes, and connections. All pipes have a friction factor of 0.020. If the flow from Ato B is 5 cfs. a) Determine the head loss in feet in PIPE 1 and PIPE 2 b) Determine the head loss in feet in PIPE 5 c) Determine the flow in the upper branch pipe Q2 in cubic feet per second d) Determine the total head loss in feet between the inlet A and the outlet Darrow_forwardOil of specific gravity 0.750 is pumped from a tank over a hill through a 24′′ pipe with the pressure at the top of the hill maintained at 25.5 psi. The summit is 250 ft above the surface of the oil in the tank, and oil is pumped at the rate of 22.0 cfs. If the lost head from tank to summit is 15.7 ft, what horsepower must the pump supply to the liquid? Indicate the Free Body Diagramarrow_forwardWhich of the following represent primary losses A. fluid splitting devices B. friction along the bends C. the losses due to area change D. loses in valves E. frictions along the pipe lengtharrow_forward
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