Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780133494839
Author: Mott
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 13.27PP
Using the result from Problem 13.26 describe how the performance of the pump changes if the system head increases by percent.
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Chapter 13 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 13 - List 12 Factors that should be considered when...Ch. 13 - List items that must be specified for pumpsCh. 13 - Describe a positive-displacement pump.Ch. 13 - Name four examples of rotary positive-displacement...Ch. 13 - Name three types of reciprocating...Ch. 13 - Describe a kinetic pumpCh. 13 - Name three classifications of kinetic pumps.Ch. 13 - Describe the action of the impellers and the...Ch. 13 - Describe a jet pumpCh. 13 - Distinguish between a shallow-well jet pump and a...
Ch. 13 - Describe the difference between a simplex...Ch. 13 - Describe the general shape of the plot of pump...Ch. 13 - Describe the general shape of the plot of total...Ch. 13 - To the head-versus-capacity plot of Problem 13.13...Ch. 13 - To what do the affinity laws refer in regard to...Ch. 13 - Fora given centrifugal pump, if the speed of...Ch. 13 - For a given centrifugal pump, if the speed of...Ch. 13 - For a given centrifugal pump, if the speed of...Ch. 13 - For a given size of centrifugal pump casing, if...Ch. 13 - For a given size of centrifugal pump casing, if...Ch. 13 - For a given size of centrifugal pump casing, if...Ch. 13 - Describe each part of this centrifugal pump...Ch. 13 - For the line of pumps shown in Fig.13.22 specify a...Ch. 13 - For the line of pumps shown in Fig. 13.22 ,...Ch. 13 - For the 2x310 centrifugal pump performance curve...Ch. 13 - For the 2310 centrifugal pump performance curve...Ch. 13 - Using the result from Problem 13.26 describe how...Ch. 13 - For the centrifugal pump performance curve shown...Ch. 13 - Prob. 13.29PPCh. 13 - State some advantages of using a variable-speed...Ch. 13 - Describe how the capacity, efficiency, and power...Ch. 13 - If two identical centrifugal pumps are connected...Ch. 13 - Describe the effect of operating two pumps in...Ch. 13 - For each of the following sets of operating...Ch. 13 - For the 112313 centrifugal pump performance curve...Ch. 13 - For the 6817 centrifugal pump performance curve...Ch. 13 - Figure 13.52 shows that a mixed-flow pump is...Ch. 13 - Compute the specific speed for a pump operating at...Ch. 13 - Compute the specific speed for a pump operating at...Ch. 13 - Compute the specific speed for a pump operating at...Ch. 13 - Compute the specific speed for a pump operating at...Ch. 13 - It is desired to operate a pump at 1750 rpm by...Ch. 13 - Define net positive suction head (NPSH).Ch. 13 - Distinguish between NPSH available and NPSH...Ch. 13 - Describe what happens to the vapor pressure of...Ch. 13 - Describe why it is important to consider NPSH when...Ch. 13 - For what point in a pumping system is the NPSH...Ch. 13 - Discuss why it is desirable to elevate the...Ch. 13 - Discuss why it is desirable to use relatively...Ch. 13 - Prob. 13.50PPCh. 13 - If we assume that a given pump requires 7.50 ft of...Ch. 13 - Determine the available NPSH for the pump in...Ch. 13 - Find the available NPSH when a pump draws water at...Ch. 13 - A pump draws benzene at 25 C from a tank whose...Ch. 13 - Determine the available NPSH for the system shown...Ch. 13 - Determine the NPSH available when a pump draws...Ch. 13 - Determine the NPSH available when a pump draws...Ch. 13 - Determine the NPSH available when a pump draws...Ch. 13 - Determine the NPSH available when a pump draws...Ch. 13 - Repeat Problem 13.56 if the pump is 44 in below...Ch. 13 - Repeat Problem 13.59 if the pump is 27 in above...Ch. 13 - Repeat Problem 13.57 if the pump is 1.2 m below...Ch. 13 - Repeat Problem 13.58 if the pump is installed...Ch. 13 - A pump draws propane at F (sgfrom a tank whose...Ch. 13 - A pump draws propane at 45 C (sg =0.48 ) from a...
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- Calculate the pump capacity.arrow_forwardDetermine the least number of stages for a multi stage pump to deliver 60L/s against a total head of 210 meters when running at 1453rpm. If the specific speed must not be less than 675.arrow_forwardSelect the number and type (ns ) of centrifugal pumps for a pumping station that must deliver 130 m3/s against a head of 50 m at 180 rpm. Assume NPSH on pumps is +5 m. Use identical single-stage pumps in parallel. Ans. 110 pumpsarrow_forward
- Figure 8.12 shows a portion of a fire protection system in which a pump draws water at 60°F from a reservoir and delivers it to a point B at the flow rate of 1500 gal/min.arrow_forwardComment on this Triple screw pump , advantage, disadvantage. Efficency, functionality etc .... ( write a paragraph) about it .arrow_forwardAn axial flow pump operating at a speed of 880 rpm can supply water at a rate of 7000 gpm. The maximum head that this pump can deliver in feet is ___________(whole number)arrow_forward
- IF THE IMPELLER OF A CENTRIFUGAL PUMP IS KEPT THE SAME AND THE SPEED VARIED, THE PUMP OUTPUT SHALL CHANGE IN ACCORDANCE TO WHAT EQUATION?arrow_forwardA system requires delivery of water at 40 l/s at a head of 12 ft. An axial pump is available. What rotational speed do you recommend running the pump at?arrow_forwardestimate the volume flow rate of water through the siphonarrow_forward
- Small by-pass lines are sometimes installed to a. Control the flow rate b. Reduce pump power consumption c. Control the pump delivery head d. Prevent the pump from running at zero flowarrow_forwardwhat is a positive displacement pump? In what ways does it differ from a centrifugal pump.arrow_forwardthe diameter of the suction pipe is 385mm. The diameter of the discharge pipe is 268mm. If centrifugal pump delivers 322388 L/hr of water to a pressurized tank with 293kpa. The source of water is 14m below the pump. Calculate the pump total head in meters.arrow_forward
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