Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 8, Problem 8.35PP
Figure 8.12shows a portion of a fire protection system in which a pump draws water at
Expert Solution & Answer
Trending nowThis is a popular solution!
Learn your wayIncludes step-by-step video
schedule19:11
Students have asked these similar questions
A centrifugal pump, driven by a DC motor, running at 100 rpm delivers 500 gpm of water against
a total pumping head of 75 feet with a pump efficiency of 68%.
a. Specify the motor hp required.
b. Determine the resulting pump speed and capacity if the pump rpm is increased to product
a pumping head of 110 ft assuming the efficiency remains the same.
c. Can a 15 hp motor be used under the conditions indicated in item b?
A boiler feed pump receives 60 liters/sec of water with specific volume of 0.00112 m3/kg at a head of 750 m. What is the power output of driving motor if pump efficiency is 65%?
Water at 5°C is to be pumped from the river to the bottom of a water tower. The pump is 5 m above the river (dimension "a" on the diagram below) and is supplied by a 6.00 inch schedule 40
pipe. The tank is 19.5 m above the pump (dimension "b" on the diagram below) and is supplied by a 4 inch schedule 40 pipe. The water level in the tank is 4.3 m above the inlet (dimension "c"
on the diagram below). The pump delivers 0.021 m/s. Losses are estimated to be 1.2 m between the river and the pump, and 4.2 m between the pump and the tank.
Discharge line
Suction line
Pump
River
a) Calculate the losses in the suction line in kPa, based on the given head loss in m.
kPa
b) Calculate velocity in the suction line in m/s.
m/s
c) What is the pressure at the inlet to the pump in kPa?
kPa
Chapter 8 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 8 - A 4-in-ductile iron pipe carries 0.20ft3/s of...Ch. 8 - Calculate the minimum velocity of flow in ft/s of...Ch. 8 - Calculate the maximum volume flow rate of fuel oil...Ch. 8 - Calculate the Reynolds number for the flow of each...Ch. 8 - Determine the smallest metric hydraulic copper...Ch. 8 - In an existing installation, SAE 10 oil (sg = 0.89...Ch. 8 - From the data in Appendix C, we can see that...Ch. 8 - Compute the Reynolds number for the flow of 325...Ch. 8 - Benzene (sg = 0.86 ) at 60c C is flowing at 25...Ch. 8 - Hot water at 80 C is flowing to a dishwasher at a...
Ch. 8 - A major water main is an 18 -in ductile iron pipe....Ch. 8 - ]8.12 An engine crankcase contains SAE 10 motor...Ch. 8 - Repeat Problem 8.12 for an oil temperature of 160...Ch. 8 - At approximately what volume flow rate will propyl...Ch. 8 - SAE 30 oil (sg = 0.89 ) is flowing at 45 L/min...Ch. 8 - Repeat Problem 8.15 for an oil temperature of 160...Ch. 8 - Repeat Problem 8.15, except the tube is 50 mm...Ch. 8 - Repeat Problem 8.17 for an oil temperature of 0 C.Ch. 8 - The lubrication system for a punch press delivers...Ch. 8 - After the press has run for some time, the...Ch. 8 - A system is being designed to carry 500 gal/min of...Ch. 8 - The range of Reynolds numbers between 2000 and...Ch. 8 - The water line described in Problem 8.22was a cold...Ch. 8 - In a dairy, milk at 100 F is reported to have a...Ch. 8 - In a soft-drink bottling plant, the concentrated...Ch. 8 - ]8.26 A certain jet fuel has a kinematic viscosity...Ch. 8 - Crude oil is flowing vertically downward through...Ch. 8 - Water at 75 C is flowing in a standard hydraulic...Ch. 8 - Fuel oil is flowing in a 4 -in Schedule 40 steel...Ch. 8 - A 3-in Schedule 40 steel pipe is 5000 ft long and...Ch. 8 - Benzene at 60 C is flowing in a DN 25 Schedule 80...Ch. 8 - As a test to determine the effective wall...Ch. 8 - Water at F flows from a storage tank through ft...Ch. 8 - A water main is an 18 -in-diameter concrete...Ch. 8 - Figure 8.12shows a portion of a fire protection...Ch. 8 - A submersible deep-well pump delivers 745 gal/h of...Ch. 8 - On a farm, water at 60 F is delivered from a...Ch. 8 - Figure 8.15 shows a system for delivering lawn...Ch. 8 - A pipeline transporting crude oil (sg = 0.93 ) at...Ch. 8 - For the pipeline described in Problem 8.39,...Ch. 8 - Water at 10 C flows at the rate of 900 L/min from...Ch. 8 - For the system shown in Fig. 8.17, compute the...Ch. 8 - Fuel oil (sg = 0.94 ) is being delivered to a...Ch. 8 - Figure 8.18 shows a system used to spray polluted...Ch. 8 - In a chemical processing system, the flow of...Ch. 8 - Water at 60 F is being pumped from a stream to a...Ch. 8 - For the pump described in Problem 8.46, if the...Ch. 8 - Gasoline at 50 F flows from point A to point B...Ch. 8 - Figure 8.20 shows a pump recirculating 300 gal/min...Ch. 8 - Linseed oil at 25 C flows at 3.65 in a standard...Ch. 8 - Glycerin at 25 C flows through a straight...Ch. 8 - Water at 75 C flows in a standard hydraulic copper...Ch. 8 - Benzene (sg = 0.88 ) at 60 C, flows in a DN 25...Ch. 8 - Water at 80 F flows in a 6 -in coated ductile iron...Ch. 8 - Water at 50 F flows at 15.0 ft3/s in a concrete...Ch. 8 - Water at 60 F flows at 1500 gal/min in a 10 -in...Ch. 8 - ]8.57 A liquid fertilizer solution (sg = 1.10 )...Ch. 8 - Crude oil (sg = 0.93 ) at 100 C flows at a rate of...Ch. 8 - Water at 65 C flows in a DN 40 Schedule 40 steel...Ch. 8 - Propyl alcohol flows in a standard hydraulic...Ch. 8 - ]3.61 Water at 70 F flows in a 12 -in-diameter...Ch. 8 - Heavy fuel oil at 77 F flows in a 6 -in Schedule...Ch. 8 - Water flows at a rate of 1.50ft3/s through 550 ft...Ch. 8 - Compute the energy loss as water flows in a...Ch. 8 - ]8.65 A water main is an 18 -in-diameter concrete...Ch. 8 - A fire protection system includes 1500 ft of 10...Ch. 8 - ]8.67 A standard hydraulic copper tube, 120 mm...Ch. 8 - Compute the energy loss as 2.0ft3/s of water flows...Ch. 8 - It is desired to flow 2.0ft3/s of water through...Ch. 8 - Specify a suitable size of new, clean Schedule 40...Ch. 8 - For the pipe selected in Problem 8.70, compute the...Ch. 8 - Compare the head loss that would result from the...Ch. 8 - In Problem 6.107, a theoretical flow rate of water...Ch. 8 - A pipeline is needed to transport medium fuel oil...Ch. 8 - Medium fuel oil at 25 C is to be pumped at a flow...Ch. 8 - A tremendous amount of study has gone into the...Ch. 8 - In a given installation, it is determined that the...Ch. 8 - "Laminar" fountains have become quite popular due...Ch. 8 - Use PIPE-FLO to model a straight horizontal run of...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
2.13 Compute the vertical and horizontal components for each of the forces shown In each case the force is perp...
Applied Statics and Strength of Materials (6th Edition)
Show that for circular motion, force = mass * velocity squared/radius.
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Determine the slope and deflection of end A of the cantilevered beam. E = 200 GPa and I = 65.0(106) mm4. F122
Mechanics of Materials (10th Edition)
The motorcycle has a mass of 0.5 Mg and a negligible size. It passes point A traveling with a speed of 15 m/s, ...
Engineering Mechanics: Dynamics (14th Edition)
1. In 2001 , the first iPodTM by Apple had a rated battery life of 10 hours (h) to run audio files. The 6th mod...
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
What parts are included in the vehicle chassis?
Automotive Technology: Principles, Diagnosis, and Service (5th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 8.78. A pump is designed to operate at 1 800 r/min with 83.7% efficiency, and deliver 250 1/s with a power consumption of 141 kW. What is its specific speed and type? 8.79. A manufacturer states that it can deliver a pump operating at 690 r/min that delivers 285 1/s at 78% efficiency with a power consumption of about 5.2 kW under a head of 1.5 m. What type of pump is it? Is the efficiency claim reasonable, too high, or too low? 8.80. Determine Ns for both model and prototype turbines in problem 8.75.arrow_forward1. A centrifugal pump delivers 300,000 liters per hour of water to a pressurized tank whose pressure is 280 kPa. The source of water is 5 meter below the pump. The diameter of the suction pipe is 300 mm and the discharge pipe is 250 mm. Calculate the kW rating of the driving motor assuming the pump efficiency to be 72%.arrow_forwardThe specific speed (nq) of a pump provides information… a. on the expected revolution number of the driving motor. b. on the number of blades. c. on the circumferential velocity of the impeller. d. on the shape (type) of the impeller (axial, radial or mixed).arrow_forward
- Problem 15.2 The figure below shows a showerhead at a kiddie pool in a waterpark. Water flows up through the center and some water exits through the shower head on the right (which vents directly to outside air at atmospheric pressure), while the remaining water exits via a pipe to the left. Mass flow rates, absolute pressures (P₁, P3), velocities, and areas are as shown in the figure. The entire system is held in place both horizontally and vertically by a collar at the connection to the ground. The mass of the pipes plus the water is given as mp+w. Use CoM and COLM principles to develop expressions suitable for calculating the x and y components of the reaction at the collar. m3, V3, P3, A3 m2, V2, PAtm, A2 e Collar m₁, v₁, P₁, A₁arrow_forwardIn order to meet the stated goal of delivering 4 gallons per minute at a height of 670 meters, a single pump must have a maximum flow rate of 40 gpm. How many stages are needed if the speed cannot exceed 1352 rpm?arrow_forward1.1 Define centrifugal pumps and briefly discuss their operating mechanisms. 1.2 Write the reasons for throttling a pump. What do we do if we do not use throttling? 1.3 Discuss the occurrence of surges in water supply systems and state the potential mitigation mechanisms in big cities. Also explain how pressure surges affects water quality in water supply systems. 1.4 Suppose the selected centrifugal pump for our use is not available in the market. Discuss how you select another pump available in the market and how we can utilize that pump. 1.5 Derive an equation for the available NPSH for a pump is bellow the water in the suction reservoir. Support your derivation by drawing.arrow_forward
- For the single pump-pipe system below, what will be the changes for the operating point if we increase the pipe size but decrease the shaft speed of the pump? EB H₂ O The operating point will remain the same. O The operating point will occur either at a higher discharge or at a lower discharge, depending on the specific influence of each change. O The operating point will occur at a higher discharge. O The operating point will occur at a lower discharge.arrow_forwardComplete the following tasks: QUESTION 1: A centrifugal pump consists out of an impeller, diffuser and casing and is powered by 300 kW (shaft power) and rotates at 96.3 rad/s. The flow rate generated by the machine is 54.7 Kilo-litres/min. The impeller blade inlet angle and width is 23° and 180 mm respectively. The blades occupy 12% of the impeller area and the water is assumed to enter the impeller radially. Suction and delivery pipes are equal in size. Determine: 1.1. The impeller inlet (i) diameter and inlet blade velocity. (Hint - Substitution: Vn in terms of Di and U, in terms of D; both sub into Tan of Blade inlet angle, only unknown is then solving for D?) ANS: 300 mm; 14.42 m/s If the pump has a mechanical efficiency of 80%, calculate the blade velocity at outlet (Uo) and outlet whirl velocity Vwo. Assume the blade exit angle equal to the guide vane angle. (Hint - Substitution: Write Vwo in terms of U. sub in Euler equation only unknown then is solve for Vwo) ANS: Vwo = 11.54…arrow_forwardWater is pumped through a vertical 5.0 cm cement-lined steel pipe to an elevated tank on the roof of a building. The measured pressure at the discharge side of the pump is 1380 kPa. What pressure can be expected at a point in the pipe 76 m above the pump when the flow is 9.5 L/s? Use f= 0.023. Include the diagram in your solution. a.100 kPa b.150 kPa c.75 kPA d.225 kPaarrow_forward
- 4. The discharge pipe of a pump is 400 mm in diameter delivers 0.5 m3/sec of water to a building which maintains a pressure of 100 Kpa at a height of 30 m, what power must be furnished by the pump?arrow_forward1. Water from a reservoir passes over a dam through a turbine and discharges from a 60-cm ID pipe at a point 40 m below the reservoir surface. The turbine delivers 1 MW. a. Draw the system and write the relevant form of the mechanical energy balance. b. Calculate the required flow rate of water in m3/min if friction is neglected. (Note: The equation you will solve in this problem has multiple roots. Find a solution that is physically relevant.) c. If friction were included, would a higher or lower flow rate be required?arrow_forwardA pump takes water from an 8 inch suction pipe and delivers it to a 6 inch pipe in which the velocity is 8 feet per second. At a point along the suction pipe, a pressure of 6 psi is observed while a pressure of 60 psi is observed along the discharge pipe, 15 feet higher than the previous point. Whathorsepower must be supplied to the pump of efficiency 80 percent to maintain the system. *can you also provide its figure, Thank you.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Fluid Mechanics - Viscosity and Shear Strain Rate in 9 Minutes!; Author: Less Boring Lectures;https://www.youtube.com/watch?v=_0aaRDAdPTY;License: Standard youtube license