QUIZ1. A compressor draws in 0.25 m³/s of air whose density is 1.26 kg/m³ and discharges it with adensity of 4.87 kg/m³. At the suction, P1 = 103.4 kPaa; at the discharge, P2 = 551.4 kPaa. Theincrease in the specific internal energy is 78.63 kJ/kg, and the heat from the air by cooling is30.24 kJ/kg. Neglecting changes of potential and kinetic energy, determine the work on air inkW, BTU/min, and Hp.2. Consider an underground water source whose free surface is 60 m below ground level. Thewater is to be raised 5 m above the ground by a pump. The diameter of the pipe is 10 cm at theinlet and 15 cm at the exit. Neglecting any heat interaction with the surrounds and frictionalheating effects, determine the power input to the pump required for steady flow of work at arate of 15 liters per second.3. A piston cylinder arrangement contains 100 liters of saturated water and 900 liters of saturatedsteam in equilibrium at 1 MPaa (t,at = 179.91°C, V1 = 1.273x10° m³/kg and vạ1 =194.44x103m/kg). Heat is added at constant pressure until the temperature becomes 300°C (At point 2, P2= 1 MPaa and t, = 300°C, v2 = 257.9x10³ m³/kg). Determine:a) The initial temperatureb) The total massc) The quality of vapor at initial conditiond) The final volumee) The work done during the process

as per expert guidelines we are supposed to answer only the first question of the given multiple…

A compressor draws in 0.25 m/s of air whose density is 1.26 kg/m³ and discharges it with a density of 4.87 kg/m³. At the suction, P1 = 103.4 kPaa; at the discharge, P2 = 551.4 kPaa. The increase in the specific internal energy is 78.63 kJ/kg, and the heat from the air by cooling is 30.24 kJ/kg. Neglecting changes of potential and kinetic energy, determine the work on air in kW, BTU/min, and Hp.

A compressor draws in 0.25 m/s of air whose density is 1.26 kg/m³ and discharges it with a density of 4.87 kg/m³. At the suction, P1 = 103.4 kPaa; at the discharge, P2 = 551.4 kPaa. The increase in the specific internal energy is 78.63 kJ/kg, and the heat from the air by cooling is 30.24 kJ/kg. Neglecting changes of potential and kinetic energy, determine the work on air in kW, BTU/min, and Hp.

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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