1.Atmospheric air enters a single stage screw compressor at 1 bar and 250C at low velocity. The compressor element compresses the air to 3bar which exits through a nozzle in which it expands to a velocity of 600m/s. Before the 7 compressed air exits the compressor, it is cooled by an after cooler. If the work of compression is 240kj/kg of air; calculate a) The heat that needs to be taken away by the after cooler. A pump is required to pump out water from a flooding pit at a rate of 1000L/min. With the aid of a well labeled diagram; b) What kind of pump is required for the operation and why?
1.Atmospheric air enters a single stage screw compressor at 1 bar and 250C at low velocity. The compressor element compresses the air to 3bar which exits through a nozzle in which it expands to a velocity of 600m/s. Before the 7 compressed air exits the compressor, it is cooled by an after cooler. If the work of compression is 240kj/kg of air; calculate a) The heat that needs to be taken away by the after cooler. A pump is required to pump out water from a flooding pit at a rate of 1000L/min. With the aid of a well labeled diagram; b) What kind of pump is required for the operation and why?
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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1.Atmospheric air enters a single stage screw compressor at 1 bar and 250C at
low velocity. The compressor element compresses the air to 3bar which exits
through a nozzle in which it expands to a velocity of 600m/s. Before the
7
compressed air exits the compressor, it is cooled by an after cooler. If the
work of compression is 240kj/kg of air; calculate
a) The heat that needs to be taken away by the after cooler.
A pump is required to pump out water from a flooding pit at a rate of
1000L/min. With the aid of a well labeled diagram;
b) What kind of pump is required for the operation and why?
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