F Angulo-Brown et al 1994 Eur. J. Phys. 15 38 doi:10.1088/0143-0807/15/1/007
F Angulo-Brown, J Fernández-Betanzos and C A Diaz-Pico
Show affiliationsWe propose an irreversible simplified model for the air standard Otto thermal cycle. This model takes into account the finite-time evolution of the cycle's compression and power strokes and it considers global losses lumped in a friction like term. The proposed model permits the maximization of quantities such as the power output and the efficiency in terms of the compression ratio r. The optimum r values obtained compare well with standard r values for real Otto engines. Our model leads to loop-shaped power-versus-efficiency curves as is common to almost all real heat engines.
Issue 1 (January 1994)
F Angulo-Brown et al 1994 Eur. J. Phys. 15 38
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