Optimization of a model external combustion engine
作者:
Yehuda B. Band,
Oded Kafri,
Peter Salamon,
期刊:
Journal of Applied Physics
(AIP Available online 1982)
卷期:
Volume 53,
issue 1
页码: 29-33
ISSN:0021-8979
年代: 1982
DOI:10.1063/1.329931
出版商: AIP
数据来源: AIP
摘要:
Using the Pontryagin maximum principle we optimize the operating conditions of a model external‐combustion engine to obtain maximal efficiency. The model engine consists of a cylinder equipped with a piston containing a gas, pumped with a given time‐dependent rate of heating, and coupled to a heat bath. We consider a fully cyclic engine, wherein both the volume and the energy of the working fluid are periodic. Such engines possess a finite optimal compression ratio. The gain in efficiency over nonoptimal paths is significant. We demonstrate the results with a numerical example, and we perform a thermodynamic analysis.
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