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9-59E An ideal dual cycle has a compression ratio of 15
and a cutoff ratio of 1.4. The pressure ratio during constant-
volume heat addition process is 1.1. The state of the air at the
beginning of the compression is P =14.2 psia and T, = 75°F.
Calculate the cycle's net specific work, specific heat addition,
and thermal efficiency. Use constant specific heats at room
temperature.
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