1.Two kilograms of air within a piston–cylinder assembly execute a Carnot power cycle with maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to the air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion, the pressure is 600 kPa and the volume is 0.4 m3 . Assuming the ideal gas model for the air, determine (a) the thermal efficiency. (b) the pressure and volume at the beginning of the isothermal expansion, in kPa and m3 , respectively. (c) the work and heat transfer for each of the four processes, in kJ. (d) Sketch the cycle on p–V coordinates.
1.Two kilograms of air within a piston–cylinder assembly execute a Carnot power cycle with maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to the air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion, the pressure is 600 kPa and the volume is 0.4 m3 . Assuming the ideal gas model for the air, determine (a) the thermal efficiency. (b) the pressure and volume at the beginning of the isothermal expansion, in kPa and m3 , respectively. (c) the work and heat transfer for each of the four processes, in kJ. (d) Sketch the cycle on p–V coordinates.
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.Two kilograms of air within a piston–cylinder assembly execute a Carnot power cycle with
maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to the
air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion, the pressure
is 600 kPa and the volume is 0.4 m3
. Assuming the ideal gas model for the air, determine
(a) the thermal efficiency.
(b) the pressure and volume at the beginning of the isothermal expansion, in kPa and m3
,
respectively.
(c) the work and heat transfer for each of the four processes, in kJ.
(d) Sketch the cycle on p–V coordinates.
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