Answered: A nozzle is a device that converts…

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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A nozzle is a device that converts fluid thermal energy, enthalpy into kinetic energy. The kinetic energy may be used to drive a mechanical device such as a turbine wheel, thus converting the fluid energy into mechanical work. An adiabatic nozzle receives 0.5 kg/s of air at a pressure of 2700 kPa and a velocity of 30 m/s with an enthalpy of 923.0 kJ/kg; and the air leaves at a pressure of 700 kPa and with an enthalpy of 660.0 kJ/kg. Determine the exit velocity from the nozzle. A closed system containing gas expands slowly in a piston cylinder from 321.7 psf and 8.2 ft3 to a final volume of 19.5 ft3. Determine the work done if the pressure distribution is determined to be P2V2.6 = c. A centrifugal pump operating under steady flow conditions delivers 2,270 kg/min of water from an initial pressure of 82,740 Pa to a final pressure of 275,800 Pa. The diameter of the inlet pipe to the pump is 15.24 cm and the diameter of the discharge pipe is 10.16 cm. What is the work done? A gas contained in a vertical cylindrical tank with a height of 3m and diameter of 2.5 m. The gas receives a paddle work of 15.3 W for 2 hours. If the density of the gas at the initial state is 2.3 kg/m3, determine the change in specific internal energy of the gas.

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