Question

A Diesel cycle (ideal) has a compression ratio of 17 and a cutoff volume ratio (u3/u2) of 1.3. Calculate the max. temperature of air and the rate of heat addition to this cycle when it produces 128 kW of power and the state of the air at the beginning of the compression is 90 kPa and 578 C. Use constant specific heat sat room temperature. The properties of air at room temperature are cp = 1.005 kJ/kg-K, Cv = 0.718 kJ/kg K,R = 0.287 kJ/kg K, and k 1.4.

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