Draw different cycles of IC engine and explain in detail

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Accepted Answer

Different cycles of IC engines include Otto, Diesel, Dual, and Atkinson cycles.

Otto cycle: Ideal cycle for spark-ignition engines, consisting of four processes - isentropic compression, constant volume heat addition, isentropic expansion, and constant volume heat rejection.
Diesel cycle: Ideal cycle for compression-ignition engines, with four processes - isentropic compression, constant pressure heat addition, isentropic expansion, and constant volume heat rejection.
Dual cycle: Combination of Otto and Diesel cycles, with constant volume and constant pressure heat addition processes.
Atkinson cycle: Used in some hybrid vehicles, with an expansion ratio greater than compression ratio for improved efficiency.

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