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 16.13PP
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Problem 2: Find the volume flow rate of water exiting from the tank shown in the figure below. The tank
is sealed with a pressure of 140 kPa above the water. There is an energy loss of 2.0 N m/N as the
water flows through the nozzle.
Air
Water
2.4 m
50-mm diameter
The pump is delivering hydraulic oil with a specific gravity of 0.85 at rate of 75L /min to a tank 3.5m above the pump. The pressure at A is -20kpa and the pressure at B is 275 kpa. The head loss in the system is 2.5 times the velocity head in the discharge pipe calculate the power (kW) delivered by the pump for pipe diameter at suction in 52.54mm and discharge pipe diameter is 26.64mm
The impeller of a centrifugal pump has an internal
diameter of 200 mm and external diameter 400 mm. The
widths of the impeller at entry and exit are 20 mm and 10
mm respectively. The discharge of water through the
impeller is 20L/s. The impeller rotates at 1440 rpm and
the blade angle at the outlet is 30 degrees. Determine the
pressure head rise in the impeller neglecting friction
losses.
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 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 25% of the velocity head in the jet. If the pressure at the base of the nozzle is 625 KPa: compute the discharge in m3/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet at a point two-third of the maximum vertical reach from the tip of the nozzle. Neglect air resistancearrow_forward3. The pump is delivering hydraulic oil with a specific gravity of 0.85 at a rate of 75 L/min to a tank 3.5m above the pump. The pressure at A is -20 kPa and the pressure at B is 275 kPa. The head loss in the system is 2.5 times the velocity head in the discharge pipe. Calculate the power (kW) delivered by the pump for pipe diameter at suction in 52.54mm and discharge pipe diameter is 26.64mm.arrow_forwardA horizontal 150 mm diameter pipe gradually reduces its section to 50 mm diameter, subsequently enlarging into 150 mm section. The pressure in the 150-mm pipe at a point just before entering the reducing section is 140 kPa and in the 50 mm section at the end of the reducer, the pressure is 70 kPa. If 600 mm of head is lost between the points where the pressures are known, compute the rate of flow of water through the pipe.arrow_forward
- A nozzle that discharges a 60-mm-diameter water jet into the air is on the right end of a horizontal 120-mm- diameter pipe. In the line, the water has a velocity of 4 m/s and a gage pressure of 400 kPa. Find the magnitude and direction of the resultant axial force the water exerts on the nozzle and the head loss in the nozzle.arrow_forwardA pump draws water from reservoir A and lifts it to reservoir B as shown in figure 4. Elev. of water at reservoir A is 10m.The loss of head from A to 1 is 3 times the velocity head in the 150mm pipe and the loss of head from 2 to B is 20 times the velocity head in the 100mm pipe. Compute the horsepower output of the pump and the pressure heads at 1 and 2 when the discharge is 200gpm.arrow_forwardThe head of water at the inlet of a pipe of length 1 500 m and diameter400 mm is 50 m. A nozzle of diameter 80 mm at the outlet, is fitted to thepipe. Find the velocity of water at the outlet of the nozzle if ƒ = 0.01 for thepipe.arrow_forward
- 6.5 BELLOWS 6100mm The horizontal elbow is joined by bellows to the rest of the piping system and it transports water. Determine the X and Y components of the force needed to keep the elbov in posi- tion. The pressure at A and B is 200 kPa, the flow rate is 30 L/s and the pipe diameter is 100 mm. 6.6 Water flows at a rate of 0,055 m³/s through a piping system and then issues from the pipe of 50 mm diameter into the atmosphere. Ø150mm Ø50mm Ignore losses in the pipe and determine the force required at the flange to keep the nozzle in position. (Hint: first determine the pressure at A with Bernoulli's equation.)arrow_forwardThe figure shows a portion of a fire protection system in which a pump draws water at 60°F(v=1.21 x10-5 m² from a reservoir and delivers it to a point B at the flow rate of 1500 gal/min. Calculate the required height of the the water level in the tank in order to maintain 5.0 Psig pressure at point Aarrow_forward4. A pipe carries oil of density 800 kg/m³. At a given point (1) the pipe has a bore area of 0.005 m² and the oil flows with a mean velocity of 4 m/s with a gauge pressure of 800 kPa. Point (2) is further along the pipe and there the bore area is 0.002 m² and the level is 50 m above point (1). Calculate the pressure at this point (2). Neglect friction. (374 kPa)arrow_forward
- 1.A pipe of diameter 300 m and length 3000 m is used for the transmission of power by water. The total head at the Inlet of the pipe is 400 m. Find the maximum power available at the outlet of the pipe. Take f=0.005 2. The head of water at the Inlet of a pipe of length 1500 m and diameter 400 mm is 50 m. A nozzle of diameter 80 mm at the outlet, is fitted to the pipe. Find the velocity of water at the outlet of the nozzle if f=0.01 for the pipe.arrow_forwardA 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 20% of the velocity head in the jet. If the pressure at the base of the nozzle is 725 KPa: compute the discharge in m3/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet mid-height. Neglect air resistance.arrow_forwardThe impeller of the centrifugal pump is 350 mm diameter, and the width of the blade passages at outlet is 18 mm. A pump, which runs at 16.6 rev/s, is mounted so that its centre is 2.4 m above the water level in the suction sump. It delivers water to a point 19 m above its centre; the friction loss in the suction pipe is 68 Q² meter and that in the delivery pipe is 650 Q² meter where Q in m3/s is the rate of flow. The blades themselves occupy 5% of the circumference and are backward facing at 35° to the tangent. At inlet, the flow is radial and the radial component of velocity remains unchanged through the impeller. Assuming that 50% of the velocity head of the water leaving the impeller is converted to pressure head in the volute, and that friction and shock losses in the pump, the velocity heads in the suction and delivery pipes are negligible, calculate the following:The flow rate, m3/s, of the pump. Manometric efficiency, in %, of the pump.arrow_forward
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