A fluid at 0.7 bar occupying 0.09 m' is compressed reversibly to a pressure of 3.5 bar according to a law pv* = constant. The fluid is then heated reversibly at constant volume until the pressure is 4 bar; the specific volume is then 0.5 m/kg. A reversible expansion according to a law pe- constant restores the fluid to its initial state. Sketch the cycle on a p-e diagram and calculate: (i) the mass of fluid present; (ii) the value of n in the first process; (iii) the net work of the cycle.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A fluid at 0.7 bar occupying 0.09 m³ is compressed reversibly to a pressure of 3.5 bar
according to a law po* = constant. The fluid is then heated reversibly at constant volume
until the pressure is 4 bar; the specific volume is then 0.5 m/kg. A reversible expansion
according to a law po² - constant restores the fluid to its initial state. Sketch the
cycle on a p-e diagram and calculate:
(i) the mass of fluid present;
(ii) the value of n in the first process;
(iii) the net work of the cycle.
Transcribed Image Text:A fluid at 0.7 bar occupying 0.09 m³ is compressed reversibly to a pressure of 3.5 bar according to a law po* = constant. The fluid is then heated reversibly at constant volume until the pressure is 4 bar; the specific volume is then 0.5 m/kg. A reversible expansion according to a law po² - constant restores the fluid to its initial state. Sketch the cycle on a p-e diagram and calculate: (i) the mass of fluid present; (ii) the value of n in the first process; (iii) the net work of the cycle.
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