9-13 An air-standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes: (b) Calculate the net work output per unit mass. 1-2 Isentropic compression from 100 kPa and 22°C to 600 kPa 2-3 v = constant heat addition to 1500 K 3-4 Isentropic expansion to 100 kPa 4-1 P= constant heat rejection to initial state (a) Show the cycle on P-v and T-s diagrams. (b) Calculate the net work %3D unit mass. output per (c) Determine the thermal efficiency.

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(a) Show the cycle on P-v and T-s diagrams.
(b) Calculate the net work output per unit mass.
9-13 An air-standard cycle with variable specific heats is
executed in a closed system and is composed of the following
four processes:
1-2 Isentropic compression from 100 kPa and 22°C 1o
600 kPa
2-3 v = constant heat addition to 1500 K
3-4 Isentropic expansion to 100 kPa
4-1 P= constant heat rejection to initial state
%3D
(b) Calculate the net work output per
(c) Determine the thermal efficiency.
unit mass.
9-14 S D
nther)
(or
Transcribed Image Text:(a) Show the cycle on P-v and T-s diagrams. (b) Calculate the net work output per unit mass. 9-13 An air-standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes: 1-2 Isentropic compression from 100 kPa and 22°C 1o 600 kPa 2-3 v = constant heat addition to 1500 K 3-4 Isentropic expansion to 100 kPa 4-1 P= constant heat rejection to initial state %3D (b) Calculate the net work output per (c) Determine the thermal efficiency. unit mass. 9-14 S D nther) (or
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