Engineering, 03.12.2019 06:31, natalie857123

An ideal gas (cv= 0.7 kj/kg·k, r= 0.3 kj/kg·k) is contained in a piston-cylinderdevice and undergoes the following power cycle. (1-2) isentropic compression from 20◦cand 100 kpa with a compression ratio of 5, (2-3) isobaric heat addition, (3-1) isochoricheat rejection. (a) find the temperature, pressure and specific volume at states 1, 2, and 3. (b) find the heat supplied, heat rejected, work done by the system, work done on the system, net work done, and thermal efficiency. (c) calculate the change in entropy of the working fluid for each process. (d) sketch the p – v and t - s diagrams.

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An ideal gas (cv= 0.7 kj/kg·k, r= 0.3 kj/kg·k) is contained in a piston-cylinderdevice and undergoes...