A non-endoreversible Otto cycle model: Improving power output and efficiency

被引:56
作者
AnguloBrown, F [1 ]
RochaMartinez, JA [1 ]
NavarreteGonzalez, TD [1 ]
机构
[1] UNIV AUTONOMA METROPOLITANA AZCAPOTZALCO,DEPT CIENCIAS BASICAS,MEXICO CITY 02200,DF,MEXICO
关键词
D O I
10.1088/0022-3727/29/1/014
中图分类号
O59 [应用物理学];
学科分类号
摘要
We propose a finite-time thermodynamics model for an Otto thermal cycle. Our model considers global losses in a simplified way lumped into a function-like term, and takes into account the departure from an endoreversible regime through a parameter (R) arising from the Clausius inequality. Our numerical results suggest that the cycle's power output and efficiency are very sensitive to that parameter. We find that R is the ratio of the constant-volume heat capacities of the reactants and products in the combustion reaction occurring inside the working fluid. Our results have implications in the search for new fuels for internal combustion engines.
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页码:80 / 83
页数:4
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