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 11.7PP
A liquid refrigerant flows through the system, shown in Fig. 11.1, at the rate of
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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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- 4. A pump is used for the pumping of water from Tank A into Tank B in which the height difference between the surface levels of water is 20 m. The pipe diameter is 400 mm and the pipe length is 2500 m, the coefficient of friction is f 0.0025 and the pump works at a speed of 700 rpm. The characteristics of the pump are shown in Table 4 below You are required to: (a) (10 points) Intepret pump characteristic and system characteristic ina graph. (b) (10 points) Calculate the input and output power at the operating point. 0.1 0.2 0.3 0.35 0.4 0.5 15 17 18 16 14 O30 60 SI83.80 45 H. (m) 11 Table 4: Data of the pump from the Manufacturerarrow_forwardItem#3 The oil tank for the hydraulic system of figure below is air-pressurized at 10psig. The inlet line to the pump is 10 ft below the oil level while point 3 is 2ft below pump inlet. The pump flow-rate is 30 gpm and has a power equal to0.5HP. Find the pressure at station 3if there is a 28ft head loss between station 1 and 3. OIL LEVEL SG 0.9 1.5-IN- INSIDE DIAMETER 10 FT STRAINER ELECTRIC MOTOR M 2 FT PUMP 3 Q-30 GPMarrow_forwardA storage reservoir supplies water to a pressure turbine under a head of 20 m. If the flow rate is 500 liters per second the head loss in the 300 mm pipe supplying the turbine is 2.5 m. Determine the pressure at the entrance of the turbine. If a negative pressure of 30 kPa exists at the 600 mm diameter section of the draft tube (exit tube) below the turbine 1.5 m below the supply line, estimate the energy absorbed by the turbine in kW neglecting losses between the entrance and exit of the pipe. Find also the output of the turbine assuming an efficiency of 85%arrow_forward
- 4. 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_forwardB1. A water with viscosity 11.4x103 poise is flowing through a pipe of diameter 300 mm at the rate of 375 litres per sec. Find the Reynold's Number & the head lost due to friction in the pipe of length 1.5 km. The velocity of flow of water (in m/s) is The value of Reynold's Number is The frictional loss in the pipe (in m) isarrow_forwardA U tube differential manometer containing mercury was used to measure the difference of pressures in two pipes containing water. The difference in mercury level is 0.9 m, the level of water in left limb from mercury level to center of the left pipe is 1.8 m and the level of water in right limb from mercury level to center of the left pipe is 0.8 m. Find the head difference in m. S for water = 1, S for mercury 13.6. b. Draw a neat diagram shows all parameters. c. Discuss the differences between U tube and slanted U tube manometers.arrow_forward
- Q1. The figure below shows a hot water tank, with a pumping arrangement to continuously circulate water in a loop. Plastic pipes used, with six bends and two gate valves, as shown. Given that the water is flowing at an average velocity of 2.5 m/s, calculate the required power input for the pump. Given: The density and viscosity of water at 60°C are p = 983.3 kg/m', u = 0.467x103 kg/m-s. Plastic pipes are smooth, and thus their roughness is very close to zero, ɛ = 0. The loss coefficient is K1 = 0.9 for a threaded 90° smooth bend and K1 = 0.2 for a fully open gate valve. Assume 70% pump efficiency. 1.2 cm Hot Water tank 40 marrow_forwardA U tube differential manometer containing mercury was used to measure the difference of pressures in two pipes containing water. The difference in mercury level is 0.8 m, the level of water in left limb from mercury level to center of the left pipe is 1.9 m and the level of water in right limb from mercury level to center of the left pipe is 0.8 m. Find the head difference in m. S for water = 1, S for mercury 13.6. b. Draw a neat diagram shows all parameters. c. Discuss the differences between U tube and slanted U tube manometers. Difference in heads in marrow_forwardOil at 38 deg. Celsius is being drawn from a closed tank having a pressure of 70 kPa gage. The level of oil in the tank is 2.5m above the pump centerline. The suction line friction loss is 0.6m. The vapor pressure of the gasoline is 48 kPa absolute and its specific gravity is 0.82 Determine the NPSH in meters available. choices: a. 19.36 b. 17.23 c. 4.64arrow_forward
- a. Solve for the two (2) atmospheric condition, Pn1 & Pn2 at 32.68 0C and 41.12 °C. b. Calculate the diameter of the pipe at suction side if the velocity of air flow is 22.82 m/s with flow rate of 2.96 m³ /second. c. Compute the velocity head at suction side if the velocity is 33.68 m/sec.arrow_forward1. An 80 mm schedule 40 steel pipe is 1800 m long and carries a lubricating oil between 2 points A and B such that the Reynolds number is 1200. Point B is 10 m higher than point A. The oil has a specific gravity of 0.85 and dynamic viscosity of 6.51 X 10-1 Pa.s. If the pressure at A is 345 KPa, calculate the pressure @ B. 2. Determine the energy loss for a sudden contraction from a 4 in schedule 80 steel pipe to a 1.5 in schedule 80 pipe for a flow rate of 250 gal/min. 3. Determine the equivalent length in meters of pipe of a quarter open gate valve placed in a DN 250 schedule 40 pipe.arrow_forward11. AU-tube mercury differential manometer is used to measure the difference of pressure between inlet throat of a venturimeter placed with its axis horizontal in a pipeline. Calculate the difference in pressure between inlet and throat when the manometer reading is 250 mm and water flows through the pipeline. [Ans. 3.15 m of water]arrow_forward
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