An ideal dual cycle has a compression ratio of 15 and a cutoff ratio of 1.4. The pressure ratio during constantvolume heat addition process is 1.1. The state of the air at the beginning of the compression is P1 =14.2 psia and T1 = 758F. Calculate the cycle’s net specific work, specific heat addition, and thermal efficiency. Use constant specific heats at room temperature.

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IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.