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Novikov Engine with Fluctuating Heat Bath Temperature

  • Karsten Schwalbe and Karl Heinz Hoffmann EMAIL logo
Published/Copyright: February 8, 2018

Abstract

The Novikov engine is a model for heat engines that takes the irreversible character of heat fluxes into account. Using this model, the maximum power output as well as the corresponding efficiency of the heat engine can be deduced, leading to the well-known Curzon–Ahlborn efficiency. The classical model assumes constant heat bath temperatures, which is not a reasonable assumption in the case of fluctuating heat sources. Therefore, in this article the influence of stochastic fluctuations of the hot heat bath’s temperature on the optimal performance measures is investigated. For this purpose, a Novikov engine with fluctuating heat bath temperature is considered. Doing so, a generalization of the Curzon–Ahlborn efficiency is found. The results can help to quantify how the distribution of fluctuating quantities affects the performance measures of power plants.

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Received: 2018-1-15
Revised: 2018-1-23
Accepted: 2018-1-24
Published Online: 2018-2-8
Published in Print: 2018-4-25

© 2018 Walter de Gruyter GmbH, Berlin/Boston

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