A compressor operating with 7.7 kg/s water vapour with a compression ratio (P2/P1) equal to 3.0 is cooled down by means of a cooling system which extracts 74 kJ/kg of heat (per unit mass of fluid) from the device. The steam enters the compressor as saturated vapor at 1.5 MPa and leaves it at 773 K. Calculate the power required if the compressor operates with an efficiency of 0.94. Give your answer in MW to 1 decimal place.

A compressor operating with 7.7 kg/s water vapour with a compression ratio (P2/P1) equal to 3.0 is cooled down by means of a cooling system which extracts 74 kJ/kg of heat (per unit mass of fluid) from the device. The steam enters the compressor as saturated vapor at 1.5 MPa and leaves it at 773 K. Calculate the power required if the compressor operates with an efficiency of 0.94. Give your answer in MW to 1 decimal place.

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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Question

A compressor operating with 7.7 kg/s water vapour
with a compression ratio (P2/P1) equal to 3.0 is
cooled down by means of a cooling system which
extracts 74 kJ/kg of heat (per unit mass of fluid) from
the device. The steam enters the compressor as
saturated vapor at 1.5 MPa and leaves it at 773 K.
Calculate the power required if the compressor
operates with an efficiency of 0.94. Give your answer
in MW to 1 decimal place.

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