Abstract:
The new model of an irreversible Atkinson heat engine is set up,in which the influence of temperature-dependent heat capacities of the working substance,irreversible adiabatic processes and heat leak losses through the cylinder wall are taken into account.The performance characteristic curves of the Atkinson heat engine are presented for a set of given parameters.The optimum criteria of some important parameters such as the work output,the efficiency and the pressure ratio are given.Moreover,the influence of some important design parameters on the cycle performance is discussed.