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An air-standard dual cycle has a compression ratio of 14 and a cut-off ratio of 1.2. The pressure ratio during the constant-volume heat addition process is 1.5. This cycle is operated at 80 kPa and 20oC at the beginning of the compression step. Assume constant properties evaluated at 300 K. Determine the following:
a) The maximum pressure of the cycle.
b) The amount of heat added.
c) The thermal efficiency.
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