Finite Time Thermodynamics is generally associated with the Curzon–Ahlborn approach to the Carnot cycle. Recently, previous publications on the subject were discovered, which prove that the history of Finite Time Thermodynamics started more than sixty years before even the work of Chambadal and Novikov (1957). The paper proposes a careful examination of the similarities and differences between ...

This paper outlines a simple particle mechanics model in which a single particle represents the thermodynamic fluid (gas) in a heat engine (exemplified by a piston engine). By mechanics based reasoning the model demonstrates the connection between the Carnot efficiency limitation of heat engines and the Kelvin-Planck statement of Second Law requiring only the truth of the Clausius statement. IN...

In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of a heat machine that can play a similar role in quantum regimes. The minimal model consists of a single two-level system with periodically modulated energy splitting that is permanently, weakly, coupled to two spectrally separated heat bat...

Michel Feidt 1, Monica Costea 2,*, Stoian Petrescu 2 and Camelia Stanciu 2 1 Laboratoire d'Énergétique et de Mécanique Théorique et Appliquée, UMR 7563, Université de Lorraine, 2, avenue de la Forêt de Haye, Vandoeuvre-lès-Nancy 54518, France; [email protected] 2 Department of Engineering Thermodynamics, University Politehnica of Bucharest, Splaiul Independentei 313, Bucharest 06004...

We study a finite-time Carnot cycle of a weakly interacting gas which we can regard as a nearly ideal gas in the limit of T(h)-T(c) --> 0 where T(h) and T(c) are the temperatures of the hot and cold heat reservoirs, respectively. In this limit, we can assume that the cycle is working in the linear-response regime and can calculate the Onsager coefficients of this cycle analytically using the el...

As a part of the change towards higher usage renewable energy sources, which naturally deliver intermittently, need for storage systems is increasing. For compensation disturbance in power production due to inter-day seasonal weather changes, long-term required. In spectrum systems, one out few geographically independent possibilities use heat store electricity, so-called Carnot-batteries. This...

We consider the charged d-dimensional black holes in a cavity extended phase space and investigate heat engine Joule-Thomson (JT) expansion. Since structure of is similar to anti-de-sitter (AdS) cases, we take as working substance calculate their efficiency Carnot cycle rectangular cycle. Also, discuss whether JT expansion consistent with AdS cases conclude effect different boundary conditions ...