Q13: 15 kg of air per minute is delivered by a centrifugal compressor. The inlet and outlet conditions of air are / C * l = 10 m/s, pl = 1 bar, v1=0.5 m3/kg and C2= 1 80 m/s , p2=7 bar, v2=0.15 m3/kg . The increase in enthalpy of air passing through the compressor is 60 kg/kg , and heat loss to the surroundings is 720 kJ/min. Assuming that inlet and discharge lines are at the same level, find : (i) Motor power required to drive the compressor. (ii) Ratio of inlet to outlet pipe diameter Q13: 15 kg of air per minute is delivered by a centrifugal compressor. The inletand outlet conditions of air are : C1 = 10 m/s, p1 = 1 bar, v1 = 0.5 m3/kg and C2 =180 m/s, p2 = 7 bar, v2 = 0.15 m3/kg. The increase in enthalpy of air passingthrough the compressor is 160 kJ/kg, and heat loss to the surroundings is 720kJ/min. Assuming that inlet and discharge lines are at the same level, find : (i)Motor power required to drive the compressor. (ii) Ratio of inlet to outlet pipediameter,

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Answered: 15 kg of air per minute is delivered by…

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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Q13: 15 kg of air per minute is delivered by a centrifugal compressor. The inlet and outlet conditions of air are / C * l = 10 m/s, pl = 1 bar, v1=0.5 m3/kg and C2= 1 80 m/s , p2=7 bar, v2=0.15 m3/kg . The increase in enthalpy of air passing through the compressor is 60 kg/kg , and heat loss to the surroundings is 720 kJ/min. Assuming that inlet and discharge lines are at the same level, find : (i) Motor power required to drive the compressor. (ii) Ratio of inlet to outlet pipe diameter

Q13: 15 kg of air per minute is delivered by a centrifugal compressor. The inlet
and outlet conditions of air are : C1 = 10 m/s, p1 = 1 bar, v1 = 0.5 m3/kg and C2 =
1
80 m/s, p2 = 7 bar, v2 = 0.15 m3/kg. The increase in enthalpy of air passing
through the compressor is 160 kJ/kg, and heat loss to the surroundings is 720
kJ/min. Assuming that inlet and discharge lines are at the same level, find : (i)
Motor power required to drive the compressor. (ii) Ratio of inlet to outlet pipe
diameter,

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