Atkinson Cycle

P-vand T-s diagram for the air-standard Atkinson cycle

Atkinson cycle is an ideal cycle for Otto engine exhausting to a gas turbine. In this cycle the isentropic expansion 3-4 of an Otto cycle (1-2-3-4) is further allowed to the lowest cycle pressure so as to increase the work output. The cycle is shown below in p-V and T-s diagrams.

P-vand T-s diagram for the air-standard Atkinson cycle

Pressure-volume and Temperature-entropy diagram for the air-standard Atkinson cycle

Thermal Efficiency

efficiency-atkinson-cycle

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