Page 2 of 9 Continued Overlea Q2 Air flows steadily at a rate of 0.6 kg/s through a compressor, entering at a pressure o

[answerhappygod]

Page 2 Of 9 Continued Overlea Q2 Air Flows Steadily At A Rate Of 0 6 Kg S Through A Compressor Entering At A Pressure O 1 (35.88 KiB) Viewed 32 times

Page 2 of 9 Continued Overlea Q2 Air flows steadily at a rate of 0.6 kg/s through a compressor, entering at a pressure of 1.2 bar and specific volume of 0.95 m kg; and leaving at a pressure of 7.5 bar and specific volume of 0.22 m /kg. The change of specific intemal energy in the compressor is measured at 85 kJ/kg, and the heat loss from the compressor casing is 15 kW. i. Calculate the change of specific enthalpy. [41 ii. Calculate the power required to drive the compressor by ignoring the change of potential and kinetic energy. [6] iii. Calculate the specific work requirement of the compressor. [2] Calculate the temperature difference considering the specific heat of air 1.005 kJ/kg.K. [3] If the pipe diameter at the inlet and outlet of the compressor is kept the same, determine the velocity ratio. [4] Determine the change of kinetic energy of the compressor at the exit velocity of 1 m/s. [2] vii. Finally, briefly explain how the compressor's performance can be improved, and also determine its minimum required power. [4] iv. V. vi.