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Endoreversible Otto Engines at Maximal Power
Journal of Non-Equilibrium Thermodynamics ( IF 6.6 ) Pub Date : 2020-07-26 , DOI: 10.1515/jnet-2020-0039
Zackary Smith 1 , Priyo S. Pal 1 , Sebastian Deffner 1
Affiliation  

Abstract Despite its idealizations, thermodynamics has proven its power as a predictive theory for practical applications. In particular, the Curzon–Ahlborn efficiency provides a benchmark for any real engine operating at maximal power. Here we further develop the analysis of endoreversible Otto engines. For a generic class of working mediums, whose internal energy is proportional to some power of the temperature, we find that no engine can achieve the Carnot efficiency at finite power. However, we also find that for the specific example of photonic engines the efficiency at maximal power is higher than the Curzon–Ahlborn efficiency.

中文翻译:

最大功率的可逆奥托发动机

摘要 尽管它是理想化的,但热力学已证明其作为实际应用预测理论的力量。特别是,Curzon-Ahlborn 效率为任何以最大功率运行的真实发动机提供了一个基准。在这里,我们进一步开发了可逆奥托发动机的分析。对于内能与温度的某个幂成正比的一类通用工作介质,我们发现没有发动机可以在有限功率下达到卡诺效率。然而,我们还发现,对于光子引擎的特定示例,最大功率时的效率高于 Curzon-Ahlborn 效率。
更新日期:2020-07-26
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