a] A single stage single acting air compressordelivers 15 m of free air per minute from 1 barto 8 bar. The speed of compressor is 300 rpm.Assuming that compression and expansionfollow the law PV1.3=C ánd the clearance is1/16th of swept volume, find the diameter andstroke of the compressor. Take L/D = 1.5. Thetemperature and pressure of air at the suctionare same as atmospheric air. Also find the input%3Dpower required.

Given: The free air delivered, VFAD = 15 m^3 The initial pressure, P1 = 1 bar The final pressure, P2…

Answered: a] A single stage single acting air…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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6.
For a pumper truck pumping water to a fire, the back pressure is the additional pressure on the pump caused by the height of the nozzle. (Another way of thinking of back pressure is as the minimum pressure the pumper must produce in order to make water flow out the end of the nozzle.) Consider a pumper at street level pumping water through a hose to firefighters on the top of the ninth floor of a building. If each floor is 16 feet high, what is the head of water at the mouth of the nozzle?
Problem 5 A Pelton turbine has six nozzles (see the figure to the right, credit Wikipedia). Each of the nozzles has an outlet velocity of 100 m/s and an exit area of 0.05 m². If the radius of the turbine is 3 meters, and the rotational velocity is 20 rad/s, what is the power generated by the turbine?
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.
A pump has a displacement volume of 122 cm3. It delivers 0.0027 m3/s of oil at 1720 rpm and 85 bars. If the prime mover input torque is 175 N∙m What is the overall efficiency of the pump? What is the theoretical torque required to operate the pump?
4. A centrifugal pump delivers 1500 L/min of water from an initial pressure of 156 kPa to a final pressure of 328 kPa. The area of the inlet pipe is 315 cm² and the area of the discharge pipe is 80 cm?. Solve for the power input to the pump, kW.
An industrial fan delivers 247 cubic feet per second of air that passes inside a 17 inch x 57 inch duct outlet. The static pressure is 1.74 inch WG with an ambient condition of 74°F and atmospheric pressure. Find the Hp capacity of the fan. a. 6.76b. 4.76c. 5.76d. 3.76
The Stroke of a gas engine which works on the constant volume cycle is 381 mm. The pressure at the beginning of the compression is 2.09 bar and at the end of compression is 13.05 bar. Assuming compression follows the law PV^1.36 = C, Calculate the clearance between the piston and cylinder cover at the end of compression in mm of length.
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1.1. The pump whose performance curves are shown in Figure P1.1 is operated at 1750 rpm and is connected to a 2-in. i.d. galvanized iron pipe 175 ft long. What will be the flow rate and power input? 100 90 Head curve 80 70 60 50 40 -Efficiency 30 20 10 20 40 60 80 100 120 140 160 180 Flow rate (gpm) FIGURE P1.1 Performance curves for a pump with a 9-in. impeller and speed 1750 rpm. 1.7. If the pump and pipe arrangement of Problem 1.1 now includes an elevation increase of 30 ft, what flow will result? Head rise (ft); efficiency ()
a. Calculate the mass flow rate in lb/min. b. Calculate the speed at section 2 in ft/min or fpm
Topics: Fundamental of fluid flow Oil (SG=0.82) entering a pump through an 8-inch diameter pipe at 4 psi has a flow rate of 3.5 cfs. It leaves the pump through a 4-inch diameter pipe at 15 psi. Assuming that the suction and discharge sides of the pump are at the same elevation, find the horsepower delivered to the water by the pump (550 lb.ft/s = 1 HP). Illustrate the problem and show your complete solution.

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