Results 1 to 10 of about 55,114 (243)
The Carnot Cycle, Reversibility and Entropy [PDF]
Entropy, 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 +8 more sources
Carnot Cycle and Heat Engine: Fundamentals and Applications [PDF]
Entropy, 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 +9 more sources
Quantum signatures in the quantum Carnot cycle [PDF]
New 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
Action and Entropy in Heat Engines: An Action Revision of the Carnot Cycle [PDF]
Entropy, 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 +4 more sources
Quantum thermodynamic Carnot and Otto-like cycles for a two-level system [PDF]
EPL, 99, 20005 (2012), 2007 From the thermodynamic equilibrium properties of a two-level system with variable energy-level gap $\Delta$, and a careful distinction between the Gibbs relation $dE = T dS + (E/\Delta) d\Delta$ and the energy balance equation $dE = \delta Q^\leftarrow - \delta W^\to$, we infer some important aspects of the second law of thermodynamics and, contrary to
Allahverdyan A. E. +5 more
arxiv +6 more sources
Carnot cycle for an oscillator [PDF]
European Journal of Physics, 2001 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 $1-T_{cold}/T_{hot}$.
+17 more
core +9 more sources
Maximum power, ecological function and efficiency of an irreversible Carnot cycle. A cost and effectiveness optimization [PDF]
, 2007 In this work we include, for the Carnot cycle, irreversibilities of linear finite rate of heat transferences between the heat engine and its reservoirs, heat leak between the reservoirs and internal dissipations of the working fluid. A first optimization of the power output, the efficiency and ecological function of an irreversible Carnot cycle, with ...
Aragon-Gonzalez, G +3 more
arxiv +7 more sources
Entropy, Carnot Cycle, and Information Theory [PDF]
Entropy, 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 +6 more sources
Onsager coefficients of a Brownian Carnot cycle [PDF]
The European Physical Journal B, 2010 We study a Brownian Carnot cycle introduced by T. Schmiedl and U. Seifert [Europhys. Lett. \textbf{81}, 20003 (2008)] from a viewpoint of the linear irreversible thermodynamics. By considering the entropy production rate of this cycle, we can determine thermodynamic forces and fluxes of the cycle and calculate the Onsager coefficients for general ...
A. Benjamin +31 more
arxiv +8 more sources
A reassessment of the Carnot cycle and the concept of entropy [PDF]
Nature 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