FINITE-TIME THERMODYNAMICS OPTIMIZATION OF AN ENDO-IRREVERSIBLE AND EXO-IRREVERSIBLE STIRLING MOTOR

This work deals with the finite time thermodynamic optimization of a S tirling engine. An endo- and exo-irreversible cycle is considered. The internal irreversibilities are due to the internal conductance of the plant and to the non-adiabatic regenerator. Also, the general irrever sibilities of the non-quasistatic cycle are taken into account. The ex ternal irreversibilities are due to the linear interactions between th e heat sources and the working fluids at finite temperature gaps. A se nsitivity analysis was performed in order to optimize the operation co nditions leading to maximum power output. The results obtained are in good agreement with the experimental data.