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Methane enters an adiabatic compressor, working steadily and consuming 2.5 HP, with P = 100 kPa, and T = 27 degree C. At the inlet circular pipe with diameter 0.8 m and center height 1.3 m from the floor, the methane average speed is found to be 3.5 m/s. The exit condition of the methane is P = 0.6 MPa and 202 degree C, and the exit circular pipe has diameter 0.8 m and center height equal to 0.2 m from the same floor. What is the entropy generation during this process, in kW/K, assuming the compressor to be adiabatic? If the adiabatic compressor is now also reversible, and the exit temperature is kept at 202 degree C, what would be the outlet pressure in MPa achieved in this case?

Methane enters an adiabatic compressor, working steadily and consuming 2.5 HP, with P = 100 kPa, and T = 27 degree C. At the inlet circular pipe with diameter 0.8 m and center height 1.3 m from the floor, the methane average speed is found to be 3.5 m/s. The exit condition of the methane is P = 0.6 MPa and 202 degree C, and the exit circular pipe has diameter 0.8 m and center height equal to 0.2 m from the same floor. What is the entropy generation during this process, in kW/K, assuming the compressor to be adiabatic? If the adiabatic compressor is now also reversible, and the exit temperature is kept at 202 degree C, what would be the outlet pressure in MPa achieved in this case?

Elements Of Electromagnetics
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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Methane enters an adiabatic compressor, working steadily and consuming 2.5 HP, with P = 100 kPa, and T = 27 degree C. At the inlet circular pipe with diameter 0.8 m and center height 1.3 m from the floor, the methane average speed is found to be 3.5 m/s. The exit condition of the methane is P = 0.6 MPa and 202 degree C, and the exit circular pipe has diameter 0.8 m and center height equal to 0.2 m from the same floor. What is the entropy generation during this process, in kW/K, assuming the compressor to be adiabatic? If the adiabatic compressor is now also reversible, and the exit temperature is kept at 202 degree C, what would be the outlet pressure in MPa achieved in this case?

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