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Performance Features of a Stationary Stochastic Novikov Engine

In this article a Novikov engine with fluctuating hot heat bath temperature is presented. Based on this model, the performance measure maximum expected power as well as the corresponding efficiency and entropy production rate is investigated for four different stationary distributions: continuous uniform, normal, triangle, quadratic, and Pareto. It is found that the performance measures increase monotonously with increasing expectation value and increasing standard deviation of the distributions. Additionally, we show that the distribution has only little influence on the performance measures for small standard deviations. For larger values of the standard deviation, the performance measures in the case of the Pareto distribution are significantly different compared to the other distributions. These observations are explained by a comparison of the Taylor expansions in terms of the distributions’ standard deviations. For the considered symmetric distributions, an extension of the well known Curzon–Ahlborn efficiency to a stochastic Novikov engine is given.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:20858
Date22 January 2018
CreatorsSchwalbe, Karsten, Hoffmann, Karl Heinz
PublisherTechnische Universität Chemnitz, MDPI AG
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text
SourceEntropy 2018, 20(1), 52; doi:10.3390/e20010052, ISSN 1099-4300
Rightsinfo:eu-repo/semantics/openAccess
Relation10.3390/e20010052

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