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The Carnot Cycle, Reversibility and Entropy [PDF]

open access: goldEntropy, 2021
The Carnot cycle and the attendant notions of reversibility and entropy are examined. It is shown how the modern view of these concepts still corresponds to the ideas Clausius laid down in the nineteenth century.
David Sands
doaj   +7 more sources

Carnot Cycle and Heat Engine: Fundamentals and Applications [PDF]

open access: greenEntropy, 2020
After two years of exchange, this specific issue dedicated to the Carnot cycle and thermomechanical engines has been completed with ten papers including this editorial [...]
Michel Feidt
doaj   +8 more sources

Quantum signatures in the quantum Carnot cycle [PDF]

open access: yesNew Journal of Physics, 2020
The Carnot cycle combines reversible isothermal and adiabatic strokes to obtain optimal efficiency, at the expense of a vanishing power output. Quantum Carnot-analog cycles are constructed and solved, operating irreversibly with positive power.
Roie Dann, Ronnie Kosloff
doaj   +6 more sources

Identifying student difficulties with entropy, heat engines, and the Carnot cycle [PDF]

open access: goldPhysical Review Special Topics. Physics Education Research, 2015
[This paper is part of the Focused Collection on Upper Division Physics Courses.] We report on several specific student difficulties regarding the second law of thermodynamics in the context of heat engines within upper-division undergraduate thermal ...
Trevor I. Smith   +3 more
doaj   +10 more sources

Action and Entropy in Heat Engines: An Action Revision of the Carnot Cycle [PDF]

open access: goldEntropy, 2021
Despite the remarkable success of Carnot’s heat engine cycle in founding the discipline of thermodynamics two centuries ago, false viewpoints of his use of the caloric theory in the cycle linger, limiting his legacy.
Ivan R. Kennedy, Migdat Hodzic
doaj   +3 more sources

Carnot cycle for an oscillator [PDF]

open access: greenEuropean Journal of Physics, 2002
Carnot established in 1824 that the efficiency of cyclic engines operating between a hot bath at absolute temperature $T_{hot}$ and a bath at a lower temperature $T_{cold}$ cannot exceed $1-T_{cold}/T_{hot}$.
Jacques Arnaud, Laurent Chusseau
core   +9 more sources

Revisiting and comparing the Carnot Cycle and the Otto Cycle [PDF]

open access: diamondRevista Brasileira de Ensino de Física
The reversibility of the Carnot Cycle makes it the most efficient thermodynamic cycle to convert energy as heat into work operating between two thermal reservoirs at different temperatures.
Tiago Kroetz
doaj   +3 more sources

Entropy, Carnot Cycle, and Information Theory [PDF]

open access: yesEntropy, 2018
The fundamental intuition that Carnot had in analyzing the operation of steam machines is that something remains constant during the reversible thermodynamic cycle. This invariant quantity was later named “entropy„ by Clausius.
Mario Martinelli
doaj   +5 more sources

A reassessment of the Carnot cycle and the concept of entropy [PDF]

open access: goldNature Precedings, 2008
It is argued that the Carnot cycle is a highly inaccurate representation of a steam engine, and that the net work obtained in its operation would be zero.
Sosale Chandrasekhar
core   +6 more sources

Numerically "exact" simulations of a quantum Carnot cycle: Analysis using thermodynamic work diagrams [PDF]

open access: greenJournal of Chemical Physics, 2022
We investigate the efficiency of a quantum Carnot engine based on open quantum dynamics theory. The model includes time-dependent external fields for the subsystems controlling the isothermal and isentropic processes and for the system-bath (SB ...
Shoki Koyanagi, Yoshitaka Tanimura
semanticscholar   +5 more sources

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