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FIRST LAW OF THERMODYNAMICS CONSERVATION OF ENERGY – OPEN SYSTEM An air compressor is designed to compress atmospheric air (assumed to be at 100 kPa, 20°C) to a pressure of 1 MPa. Heat losses to the environment are anticipated to be about equal to 10. percent of the power input to the compressor. The air enters at 50 m/s where the inlet area is 90 cm2 and leaves at 120 m/s through an area of 5cm?. Determine the exit air temperature and the power input to the compressor. Ans: = 117.8°C; Pinput = 61.83 kW (applied on)

FIRST LAW OF THERMODYNAMICS CONSERVATION OF ENERGY – OPEN SYSTEM An air compressor is designed to compress atmospheric air (assumed to be at 100 kPa, 20°C) to a pressure of 1 MPa. Heat losses to the environment are anticipated to be about equal to 10. percent of the power input to the compressor. The air enters at 50 m/s where the inlet area is 90 cm2 and leaves at 120 m/s through an area of 5cm?. Determine the exit air temperature and the power input to the compressor. Ans: = 117.8°C; Pinput = 61.83 kW (applied on)

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
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FIRST LAW OF THERMODYNAMICS CONSERVATION OF ENERGY – OPEN SYSTEM

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FIRST LAW OF THERMODYNAMICS CONSERVATION OF ENERGY – OPEN SYSTEM An air compressor is designed to compress atmospheric air (assumed to be at 100 kPa, 20°C) to a pressure of 1 MPa. Heat losses to the environment are anticipated to be about equal to 10. percent of the power input to the compressor. The air enters at 50 m/s where the inlet area is 90 cm2 and leaves at 120 m/s through an area of 5cm?. Determine the exit air temperature and the power input to the compressor. Ans: = 117.8°C; Pinput = 61.83 kW (applied on)
Transcribed Image Text:FIRST LAW OF THERMODYNAMICS CONSERVATION OF ENERGY – OPEN SYSTEM An air compressor is designed to compress atmospheric air (assumed to be at 100 kPa, 20°C) to a pressure of 1 MPa. Heat losses to the environment are anticipated to be about equal to 10. percent of the power input to the compressor. The air enters at 50 m/s where the inlet area is 90 cm2 and leaves at 120 m/s through an area of 5cm?. Determine the exit air temperature and the power input to the compressor. Ans: = 117.8°C; Pinput = 61.83 kW (applied on)
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