Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 11, Problem 11.10PP
In a processing plant, ethylene glycol at
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The pressure loss through the pipe and the minimum power required to overcome the resistance to flow.
A home hot water heater contains 40 gal of water. Because of a failure of the heat control, heat is continuously applied to the water in the tank, increasing the temperature and pressure. Unfortunately, the relief valve is clogged and the pressure rises past the maximum pressure of the vessel. At 250 psig the tank ruptures. Estimate the quantity of water flashed
A vertical pipe is shown in figure 1 below. The pipe tapers from 50 mm in
diameter to 25 mm in diameter. If 2 liters of water per minute flow upwards
through the pipe the pressure difference across the pipe is 35 kPa. Calculate
the flow downwards through the pipe if the pressure across the pipe is to be
zero. The losses across the pipe are given by h, = K-vi), where v, and v,
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2g
50 mm
1.5 m
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Figure 1
Chapter 11 Solutions
Applied Fluid Mechanics (7th Edition)
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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- Gasoline at 77°F flows from a pressurized upper tank to a vented lower tank as shown in the figure below. A length of 1-inch Schedule 40 pipe connects the two tanks a Calculate the air pressure (in psi) above the gasoline in the upper tank that will result in a flow rate of 35 gpm into the lower tank for the dimensions shown The head loss due to pipe friction is 52.8 feet and you DO NOT need to calculate this! As the upper tank drains does the air pressure in the upper tank need to be neld constant to maintain the flow rate at 35 gpm? Briefly explain your answer. C The pressurized upper tank is converted to an atmospheric tank and a pump is installed in the system. If flow rate and pipe friction remain the same, how much horsepower does the pump put into the system?arrow_forwardA horizontal 154 mm diameter pipe gradually reduces its section to 53 diameter, subsequently enlarging into 154 mm section. The pressure in the 154-mm pipe at a point just before entering the reducing section is 141 kPa and in the 53 mm section at the end of the reducer, the pressure is 73 kPa. If 627 mm of head is lost between the points where the pressure are known compute the rate of flow in L/s of water through the pipe.arrow_forward4. Three storage tanks A, B and C are connected to a piping system as shown in Fig. The flow rate of water in the pipe which is connected to tank B is 0.06 m³/s. Determine the flow rate in the other two pipes and then calculate the level of the water in tank B relative to ground level. Friction factor, f = 0.01. ZA= 25 m A ₁=1000 m d₁= 0.3 m Q₁ = ? l₁= 600 m d,= 0.2 m Q = 0.06 m²/s 1₂= 1300 m d₁= 0.2 m Q₂ = ? B C Zc = 11 m Zaarrow_forward
- 60 deg F engine oil flows in a 6" diameter pipe of length 13 feet. The gage pressure at the pipe inlet is 1 psi; the oil exits the pipe to the atmosphere. Determine the volume flow rate of the oil in ft3/sec. You can assume laminar flow.arrow_forward1. What is the likelihood that a flow with an average velocity of 0.15 f t/s in a 6 in. water pipe is laminar? Find the speed at which the flow will always be laminar. 2. If the critical Reynolds number for a river is 2000 based on average velocity and depth, what is the maximum speed for laminar flow in a river 10 f t deep? 2 f t deep? Do you expect any river flow to be laminar?.arrow_forward4. A special oil is to be used in an absorption tower. The preliminary design of the unit requires the oil to be pumped from an open tank with a 10 ft liquid level above the floor and forced through 150 ft of 3 inches schedule 40 pipe with a ball check valve and 5 elbows into the top of a tower 30 ft above the floor. The operating pressure in the tower is to be 52 psig and the oil requirement is estimated at 50 gpm. The viscosity of the oil 15 cP and its density is 53.5 Ibm/ft. Assuming the pumping outfit operates with an overall efficiency of 60%, what horsepower input will be required for the pump motor?arrow_forward
- 8- Oil flows in the circular pipe at 40 oC. If the Reynolds number is calculated as 1700, what is the friction factor?arrow_forwardQuestion-1: Carbon dioxide at 20°c and a pressure of 550 kPa (abs) flows in a pipe at a rate of 0.04 Nis. Determine the maximum diameter allowed if the flow is to be turbulent.arrow_forwardUsing Q=VA formula But how Can i take the area. OD or ID. Please solve it correctly fast.arrow_forward
- The flow rate of water at 20°C in the center of a pipe with an inside diameter of 102.3mm is measured with a pitot tube. At 18°c, the reading from the manometer is 80mm of carbon tetrachloride. The coefficient for the pitot tube is 0.95. A.) Calculate the velocity at the center and the average velocity B.) Calculate the volumetric flowrate of the waterarrow_forwardQ.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.arrow_forwardPLease include a diagram.A Special oil is to be used in an absorption tower. The preliminary design of the unit requires the oil to be pumped from an open tank with a 10 ft liquid level above the floor and forced through 150 ft of 3 inches schedule 40 pipe with a ball check valve and 5 elbows into the top of a tower 30ft above the floor. The operating pressure in the tower is to be 52 psig and the oil requirement is estimated at 50gpm. The viscosity of the oil is 15cP and its density is 53.5 lbm/ft3. Assuming the pumping outfit operates with an overall efficiency of 60%, what horsepower input will be required for the pump motor?arrow_forward
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