Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
58 (1985), S. 2893-2901
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We examine a reciprocating heat engine which necessarily operates far from equilibrium and about an unstable steady state. The piston of the engine is driven by the nonlinear coupling of the working fluid to an external light source which provides high quality heat and to the environment into which waste heat is dumped. We determine the piston trajectories that optimize two different criteria of process performance, the maximization of work output, and the minimization of entropy production. The trajectories optimizing different performance goals are qualitatively different. In engines not dominated by friction losses, the cycle optimizing work output requires that the expansion stroke begins with a slight compression and the temperature of the working fluid increases briefly.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.336281
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