Air is initially at 260^@ C and 700 N/m^2 and occupied 0.028 m^3. The air is expanded at constant pressure to 0.084 m^3. A polytropic process with x = 1.5 is then carried out followed by a constant temperature process which completes a cycle. (a) Sketch P-V graph (b) Find heat received and heat rejected in the cycle (c) Efficiency of cycle

Air is initially at 260^@ C and 700 N/m^2 and occupied 0.028 m^3. The

1.	Air is initially at 260^@ C and 700 N/m^2 and occupied 0.028 m^3. The air is expanded at constant pressure to 0.084 m^3. A polytropic process with x = 1.5 is then carried out followed by a constant temperature process which completes a cycle. (a) Sketch P-V graph (b) Find heat received and heat rejected in the cycle (c) Efficiency of cycle
Answer» SOLUTION :`124J,-17.7 J,-58.4 J(C )38.6 %`