QI. An air-standard cycle is executed within a closed piston- cylinder system and consists of three processes as follows

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Qi An Air Standard Cycle Is Executed Within A Closed Piston Cylinder System And Consists Of Three Processes As Follows 1 (17.7 KiB) Viewed 52 times

QI. An air-standard cycle is executed within a closed piston- cylinder system and consists of three processes as follows: 1-2 V - constant heat addition from 100 kPa and 27°C to 700 kPa 2-3 Isothermal expansion until V, -7 3-1 P = constant heat rejection to the initial state Assume air has constant properties with c = 0.718 kJ/kg-K.c, - 1.005 kJ/kg-K.R=0.287 kJ/kg-K, and k=1.4. (a) Sketch the P-v and T-s diagrams for the cycle. (5) Determine the ratio of the compression work to the expansion work (the back work ratio) () Determine the cycle thermal efficiency.