Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780133494839
Author: Mott
Publisher: PEARSON
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Chapter 10, Problem 10.29PP
Determine the energy loss that will occur if water flows from a reservoir into a pipe with a velocity of
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Water at 70°F passes through 0.75-in-internal- diameter 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.
Water 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.
Two pipes of identical length and material are connected in parallel. The diameter of pipe A is half the diameter of pipe B. Assuming the friction factor to be the same in both cases and disregarding minor losses, determine the ratio of the flow rates in the two pipes.
Chapter 10 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the pressure difference between two...Ch. 10 - Determine the pressure difference for the...Ch. 10 - Determine the energy loss due to a gradual...Ch. 10 - Determine the energy loss for the conditions in...Ch. 10 - Compute the energy loss for gradual enlargements...Ch. 10 - Plot a graph of energy loss versus cone angle for...Ch. 10 - For the data in Problem 10.8, compute the length...
Ch. 10 - Add the energy loss due to friction from Problem...Ch. 10 - Another term for an enlargement is a diffuser. A...Ch. 10 - Compute the resulting pressure after a "real"...Ch. 10 - Compute the resulting pressure after a "real"...Ch. 10 - Determine the energy loss when 0.04m3/s of water...Ch. 10 - Determine the energy loss when 1.50ft3/s of water...Ch. 10 - Determine the energy loss when oil with a specific...Ch. 10 - For the conditions in Problem 10.17, if the...Ch. 10 - True or false: For a sudden contraction with a...Ch. 10 - Determine the energy loss for a sudden contraction...Ch. 10 - Determine the energy loss for a gradual...Ch. 10 - Determine the energy lass for a sudden contraction...Ch. 10 - Determine the energy loss for a gradual...Ch. 10 - For the data in Problem 10.22, compute the energy...Ch. 10 - For each contraction described in Problems 10.22...Ch. 10 - Note in Figs. 10.10 and 10.11 that the minimum...Ch. 10 - If the contraction from a 6-in to a 3-in ductile...Ch. 10 - Compute the energy loss that would occur as 50...Ch. 10 - Determine the energy loss that will occur if water...Ch. 10 - Determine the equivalent length in meters of pipe...Ch. 10 - Repeat Problem 10.30 for a fully open gate valve.Ch. 10 - Calculate the resistance coefficient K for a...Ch. 10 - Calculate the pressure difference across a fully...Ch. 10 - Determine the pressure drop across a 90 C standard...Ch. 10 - Prob. 10.35PPCh. 10 - Repeat Problem 10.34 for a long radius elbow....Ch. 10 - A simple heat exchanger is made by installing a...Ch. 10 - A proposed alternate form for the heat exchanger...Ch. 10 - A piping system for a pump contains a tee, as...Ch. 10 - A piping system for supplying heavy fuel oil at 25...Ch. 10 - A 25 mm ODx2.0 mm wall copper tube supplies hot...Ch. 10 - Specify the radius in mm to the centerline of a 90...Ch. 10 - The inlet and the outlet shown in Fig. 10.36 are...Ch. 10 - Compare the energy losses for the two proposals...Ch. 10 - Determine the energy loss that occurs as 40 L/min...Ch. 10 - Figure 10.38 shows a test setup for determining...Ch. 10 - Compute the energy loss in a 90 bend in a steel...Ch. 10 - Compute the energy loss in a 90 bend in a steel...Ch. 10 - For the data in Problem 10.47, compute the...Ch. 10 - For the data in Problem 10.48, compute the...Ch. 10 - A tube similar to that in Problem 10.47 is being...Ch. 10 - Prob. 10.52PPCh. 10 - Prob. 10.53PPCh. 10 - Prob. 10.54PPCh. 10 - Prob. 10.55PPCh. 10 - Repeat Problem 10.55 for flow rates of 7.5 gal/min...Ch. 10 - Prob. 10.57PPCh. 10 - Prob. 10.58PPCh. 10 - Prob. 10.59PPCh. 10 - Prob. 10.60PPCh. 10 - A 34 plastic ball valve carries 15 gal/min of...Ch. 10 - A 114 plastic butterfly valve carries 60 gal/min...Ch. 10 - A 3 -in plastic butterfly valve carries 300...Ch. 10 - A 10-in plastic butterfly valve carries 5000...Ch. 10 - A 1 12 plastic diaphragm valve carries 60 gal/min...Ch. 10 - Prob. 10.66PPCh. 10 - Prob. 10.67PPCh. 10 - Prob. 10.68PPCh. 10 - Prob. 10.69PPCh. 10 - An 8 -in plastic swing check valve carries 3500...Ch. 10 - Use PIPE-FLO software to determine the pressure...Ch. 10 - Use PIPE-FLO to calculate the head loss and...
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- From the attached figure, determine the flow rate in each pipe taking into account that minor losses are negligible.arrow_forwardWater is pumped through a pipe of 4 in diameter. Determine the flow rate if the frictional head loss is hL=8v^2/2garrow_forward04: Three pipes of diameters 300 mm, 200 mm and 400 mm and lengths 450 m, 255 m and 315 m, respectively, are connected in series. The difference in water surface levels in two tanks is 18 m. Determine the rate of water flow if coefficients of friction are 0.0075, 0.0078 and 0.0072, respectively, considering: (a) with minor losses, (b) without (neglecting) ‘minor losses.arrow_forward
- 1. Water flows through a venturi meter. At the constricted section where the area is 24cm², the pressure is 10.2N/cm², and at the section where the area is 64cm², the pressure is 18.0N/cm². Determine the velocities of water in the larger and smaller pipes and the rate of flow. 2. Why is a water tower generally placed on top of a hill? If the hill is 50m high, can it supply water to the top of a 100-m tal officebbuilding? If not, how does water get to that floor?.arrow_forwardA pipe of length 100 m and diameter 200 mm carries water with a velocity of 4 m/s. For the pipe, if coefficient of friction is f = 0.002, then determine the total head loss in itarrow_forwardIn a hydroelectric power plant, water at 20°C is supplied to the turbine at a rate of 0.55 m3/s through a 200-m-long, 0.35-m-diameter cast iron pipe. The elevation difference between the free surface of the reservoir and the turbine discharge is 140 m, and the combined turbine–generator efficiency is 85 percent. Disregarding the minor losses because of the large length-to-diameter ratio, determine the electric power output of this plant.arrow_forward
- Water is flowing through a circular pipe made of cast iron with a diameter of 26 cm. If Reynolds number is 105. What is the Darcy friction factor?arrow_forwardkindly help me with this problem INSTRUCTIONS: Solve the problems neatly and systematically. SUse free-floating decimals in all your calculations and in expressing your answers. Box your final answers. 5. In reference to problem number 1, if another pump was used having a power requirement of 12 hP with an efficiency of 73% in pumping the water at 1.2 ft3/s through a constant diameter of a pipe. Determine theirreversible head loss of the piping system in ft of water if the free surface of the pool was at 35 ft?arrow_forwardElectric power is generated in the hydroelectric power plant with a turbine-generator system, which has a water input of 45 m3 per second from a height of 53 meters and operates with 73% efficiency. Calculate the electrical power generated in the plant since the friction loss in the pipes is neglected. A) 1,7 MW B) 17 MW C) 32 MW D) 171 MW E) 23 MWarrow_forward
- Water is flowing at a rate of 0.5 m³/s through a rough pipe with a diameter of 0.5 m and a length of 800 m. Assuming the average roughness height (k) is 0.15 mm, determine: a) the friction coefficient, b) the wall shear stress, c) the velocity at the centerline and 200 mm away from the pipe wall.arrow_forwardDetermine the velocity of the flow of water @45C is flowing through a 3-in ID smooth pipe. The friction loss for a 75 ft section of the pipe amounts to 2.4 lbf / lbm.arrow_forwardA pipe line of length 2000 m is used for power transmission. If 110 kW power is to be transmitted through the pipe in which water having a pressure of 490.5 N/cm2at inlet is flowing. If the pressure drop over the length of pipe is 98.1 N/cm2and ff = 0.0065.Determine:The diameter of the pipe and the volume flow rate; and If a nozzle is introduced at the end of the pipe, what would be its diameter and the power transmitted.arrow_forward
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