A set of louvers deflects a stream of warm air onto painted parts, as illustrated in Fig. 16.21. The louvers are rotated slowly to distribute the air evenly over the parts. Compute the torque required to rotate the louvers toward the stream of air when it is flowing at a velocity of
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Applied Fluid Mechanics (7th Edition)
- a pump is delivering 160 liters per sec of water using an impeller diameter of 240 mm and operating at a speed of 1800 rpm. if the speed held constant and the impeller diameter is change to 203.2 mm, what is the new dischange og the pump in liters per secondarrow_forwardPROBLEM 1: A pipe transports 1962 N/s of water. The pipe tees into a 2"-diameter pipe and a 3"-diameter pipe. If the average velocity in the smaller-diameter pipe is 82 ft/s, calculate the flowrate (in ft^3/s) in the larger pipe.arrow_forwardA pipe 12 mm diameter with a velocity of 0.50 m/s is attached by a nozzle at the end having a diameter of 3 mm diameter. Find the velocity of the water in the nozzle in m/s.arrow_forward
- 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. 1arrow_forward3. A fire hydrant has an outlet diameter of 630 mm located 1.4 meters above the ground. If the water strikes the ground at a horizontal distance of 285 meters below the outlet, calculate the rate of discharge in gals. per min.arrow_forwardA 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_forward
- Why is centrifugal force frequently applied to speed up particle-fluid separation? A cyclone is designed to collect dusts. Increasing gas flow rate at the inlet can increase the efficiency without changing the cyclone. How much must the flowrate increase in volume flow if the critical particle diameter is reduced to half? A centrifuge needs a 300 times of gravity acceleration for a separation. The radius of the bowl is 0.1m. What is the minimum rotating speed N (rev/min) in this centrifuge?arrow_forward5. A pump draws water from reservoir A and lifts it to reservoir B. The loss of head from A to 1 is three times the velocity head in the 150mm pipe and the loss of head from 2 to B is twenty times the velocity head in the 100mm pipe. Discharge is 20L/s. a. Calculate the horsepower output of the pump in kw. b. Calculate the pressure head at 1 in meters. c. Calculate the pressure head at 2 in meters. B El.240 m ---- El. Om 1 El. -20m 150mm 100 mmarrow_forwardfind the air flow through circular duct if the diameter(350mm) and velocity(6m/s)arrow_forward
- Calculate the dynamic force of the water on the fork, referring to a horizontal plane. waste load lossarrow_forwardIf a double-acting air cylinder with a 40-mm diameter bore and 200-mm stroke operates at 7000 kPa gage and cycles at 30 cycles /min , how long will it take to consume 100m3 of free air? (Assume the rod diameter is negligible and there is no change in the temperature of the air.arrow_forward8.61 cally through a 200-ft-long, 1.0-in.-diameter drawn tubing at a rate of 0.060 ft'/s if the pressures at the inlet and outlet are the same? What horsepower is added to water to pump it verti- Pumparrow_forward
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