Air flows steadily in a compressor at a rate of 0.5 kg.s-1. The conditions at the inlet (1) ant exit (2) are: P1 = 1 bar   u1 = 6 m·s-1  V1 = 0.85 m3⋅kg−1;   P2 = 7 bar  u2 = 5 m·s-1  V2 = 0.16 m3⋅kg−1 The internal energy of the air leaving is 95 kJ.kg-1 greater than that of the air at the inlet. Cooling water absorbs heat from the compressor at the rate of 50 kJ.s-1. Calculate: i) The power required to drive the compressor ii) The inlet and outlet pipe diameters.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Air flows steadily in a compressor at a rate of 0.5 kg.s-1. The conditions at the inlet (1) ant exit (2) are: 
P1 = 1 bar   u1 = 6 m·s-1  V1 = 0.85 m3⋅kg−1;   P2 = 7 bar  u2 = 5 m·s-1  V2 = 0.16 m3⋅kg−1 
The internal energy of the air leaving is 95 kJ.kg-1 greater than that of the air at the inlet. Cooling water 
absorbs heat from the compressor at the rate of 50 kJ.s-1. Calculate: 
i) 
The power required to drive the compressor 
ii) 
The inlet and outlet pipe diameters. 

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