APPROXIMATE ASSESSMENT OF THE WORK OF ADIABATIC PROCESSES FOR IDEALIZED CYCLES
Delfino Ladino-Luna, Ricardo T. Páez-Hernández
In order to obtain alternative expressions for power output and thermal efficiency in the case of cycles with adiabatic processes, a procedure including the time of such processes in the cycle is proposed. In spite of being very small, these times can be taken into account to get theoretical results more aligned with reality. With a parameter that includes the compression ratio, these times for adiabatic processes are obtained by comparing adiabatic work with isothermal work, and are included in the expression for power output in case of Otto and Diesel cycles. These expressions of power output are compared with those known in the classical equilibrium thermodynamics literature.