Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 16, Problem 16.28PP
To determine
The heaviest object that could be moved by the jet of air.
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Problem 4: Compute the specific speed for a pump operating at 1750 rpm delivering 12 000 gal/min
of water at a total head of 300 ft.
1
It is required to deliver 324 gpm against a head of 420 ft at 3600 rpm. Assuming acceptable efficiency of pump at specific speeds of the impeller between 1200 and 4000 rpm when flow Q is in gpm how many pumping stages should be used?
20. A centrifugal pump has an impeller 45 cms in diameter
running at 450 rpm. - The discharge at inlet is entirely radial. The
velocity of flow at outlet is 12. m/sec. The vanes are curved back-
wards at outlet at 30° to the wheel tangent. If the discharge of the
is 0'15 cumec calculate the impeller horse power and the
(18'42 hp ; 29 31 kgm)
pump
torque on the shaft.
Chapter 16 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 16 - Calculate the force required to hold a flat plate...Ch. 16 - What must be the velocity of flow of water from a...Ch. 16 - Calculate the force exerted on a stationary curved...Ch. 16 - A highway sign is being designed to withstand...Ch. 16 - Compute the forces in the vertical and horizontal...Ch. 16 - Figure 16.13 O shows a free stream of water at 180...Ch. 16 - Compute the horizontal and vertical forces exerted...Ch. 16 - In a plant where hemispherical cup-shaped parts...Ch. 16 - A stream of non-flammable oil (sg 5 0.90) is...Ch. 16 - A 2 -in-diameter stream of water having a velocity...
Ch. 16 - Figure 16.17 O represents a type of flowmeter in...Ch. 16 - Water is piped vertically from below a boat and...Ch. 16 - A 2 -in nozzle is attached to a hose with an...Ch. 16 - Seawater (sg 5 1.03) enters a heat exchanger...Ch. 16 - A reducer connects a standard 6 -in Schedule...Ch. 16 - Calculate the force on a elbow attached to an in...Ch. 16 - Calculate the force required to hold a 90 elbow in...Ch. 16 - Calculate the force required to hold a 180 close...Ch. 16 - A bend in a tube causes the flow to turn through...Ch. 16 - A vehicle is to be propelled by a jet of water...Ch. 16 - A part of an inspection system in a packaging...Ch. 16 - Shown in Fig. 16.20 is a small decorative wheel...Ch. 16 - For the wheel described in Problem 16.22. compute...Ch. 16 - A set of louvers deflects a stream of warm air...Ch. 16 - Prob. 16.25PPCh. 16 - Prob. 16.26PPCh. 16 - Figure 16.22 shows a device for clearing debris...Ch. 16 - Prob. 16.28PPCh. 16 - Figure 16.23 is a sketch of a turbine in which the...Ch. 16 - Repeat Problem 16.29 with the blade rotating as a...Ch. 16 - Repeat Problem 16.29, except with the blade...
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- A pipe reducer with the pressure at A and B is 345kPa and 290 kPa respectively. the diameter at A and B is 50mm and 25mm. estimate the velocity of slow of water at point B?arrow_forwardFigure 16.23 is a sketch of a turbine in which the incom- ing stream of water at 15°C has a diameter of 7.50 mm and is moving with a velocity of 25 m/s. Compute the force on one blade of the turbine if the stream is deflected through the angle shown and the blade is stationary.arrow_forward4. A pump draws 20 lit/sec of water from reservoir A to reservoir B as shown. Assuming f = 0.02 for all pipes, compute the pressure at point 2 in kPa. El. 10 200 mm-500 m PUMP El. 60 150 mm - 1200 m El. C Barrow_forward
- A pipe with a diameter of 350 mm in the inlet section, presented speed of 0.5 m/s, in the exit section the diameter is 70 mm, due to the attachment of a nozzle, the water comes out in a jet. Calculate the pressure inside the piping, considering ideal fluid and steady statearrow_forwardA 6-STAGE CENTRIFUGAL PUMP DISCHARGER 1200 GPM OF WATER AT 1500 RPM WITH PRESSURE DROP OF 600 PSI. FIND THE SPECIFIC SPEED.arrow_forwardIt is desired to deliver 750 gpm at a head of 340 ft. A multistage pump will be used with a rotative speed of 1745 rpm. If the specific speed for a single impeller is 2018, how many stages are required?arrow_forward
- A nozzle of diameter 20 mm at one end is used to eject water with a 20 m/s of designed velocity. What should be diameter of the nozzle at the wide end if the velocity at this end is 10 m/s.arrow_forward18. A centrifugal pump has, to work against a head of 25 metres at a speed of 850 rpm.. The flow component of the velocity at outlet is 2 5 metres/second. The outlet vane angle is 40°." If the discharge of the pump is 0-25 cumec find (i) The diameter of the impeller and (ii) The width of the impeller at outlet. Neglect losses. (0:387 m; 0*082 m)arrow_forwardNo. of plunger = 6, Plunger Diameter = 0.04 m, Stroke Length = 0.048 m and Rpm of Crank Shaft = 72.5 rpm. Find the required power to operate the pump at 60 bar pressure.arrow_forward
- The water turbine of a 5-MW hydro-power plant has specific speed of 40 rpm and discharge of 2020 lps. What is the approximate diameter of the jet in mm?arrow_forwardQ6: Calculate the specific speed for the centrifugal pump operates at (3000 r.p.m) & head of (6m) and discharge of (0.2 m3/s).arrow_forward1. A pump pumping liquid propellant operates at 10,000 rpm. The volumetric flow rate through the pump is 5,000 gpm. The pressure drop across the pump is 750 psi. Propellant density is 71lbm/ft³. Calculate the head produced by the pump. b. Calculate the pump specific speed. Is this a high-performance pump or a low- performance pump? Calculate the input power to the fluid, i.e. the fluid horse power, fnp. а. С.arrow_forward
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