Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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A variable displacement piston-cylinder pumps a gas which expands at a gauge pressure of
59.220 kPa. The maximum piston displacement can vary up to thirty centimeters. The cylinder
has a diameter of fifteen centimeters and has a total length of forty centimeters. Also, when the
piston is at the bottom dead center (refer to the diagram) it takes up fifteen percent of the total
volume. a) What is the maximum work that can done by the gas on the piston? b) If the piston is
displaced by 70%, what is the work done by the gas on the piston? c) If internal energy is to be
neglected, what must be the displacement to have a heat of 95% of the maximum work output.
BOTTOM DEAD CENTER
CYLINDER
DIAMETER
CYLINDER LENGTH
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Transcribed Image Text:A variable displacement piston-cylinder pumps a gas which expands at a gauge pressure of 59.220 kPa. The maximum piston displacement can vary up to thirty centimeters. The cylinder has a diameter of fifteen centimeters and has a total length of forty centimeters. Also, when the piston is at the bottom dead center (refer to the diagram) it takes up fifteen percent of the total volume. a) What is the maximum work that can done by the gas on the piston? b) If the piston is displaced by 70%, what is the work done by the gas on the piston? c) If internal energy is to be neglected, what must be the displacement to have a heat of 95% of the maximum work output. BOTTOM DEAD CENTER CYLINDER DIAMETER CYLINDER LENGTH
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