Physics, 24.03.2021 09:50, jaquonb23

A spark-ignition engine uses air as its working fluid. The compression process starts at a pressure of 1 atm and a temperature of 80 oF. The compression ratio of the cycle is 9. During the
heat input process, 650 Btu/lbm is added. Determine
(a) the temperature and pressure at the end of each process, (30 points)
(b) the thermal efficiency of the process, and (20 points)
(c) the mean effective pressure of the cycle. (20 points)

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A spark-ignition engine uses air as its working fluid. The compression process starts at a pressure...