Nonlinear Thermodynamic Analysis and Optimization of a Carnot Engine Cycle [PDF]
Entropy, 2016 As part of the efforts to unify the various branches of Irreversible Thermodynamics, the proposed work reconsiders the approach of the Carnot engine taking into account the finite physical dimensions (heat transfer conductances) and the finite speed of ...
Michel Feidt +3 more
doaj +2 more sources
Quantum mechanical Carnot engine [PDF]
J. Phys. A 33, 4427-4436, 2000, 2000 A cyclic thermodynamic heat engine runs most efficiently if it is reversible. Carnot constructed such a reversible heat engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic engine based on a single quantum-mechanical particle confined to a potential well.
Bernhard K Meister +7 more
arxiv +4 more sources
Comment on: "Sadi Carnot on Carnot's theorem" [PDF]
arXiv, 2003 Carnot established in 1824 that the efficiency $\eta_{C}$ of reversible engines operating between a hot bath at absolute temperature $T_{hot}$ and a cold bath at temperature $T_{cold}$ is equal to $1-T_{cold}/T_{hot}$. Carnot particularly considered air as a working fluid and small bath-temperature differences.
Arnaud, Jacques +2 more
arxiv +3 more sources
Revisiting and comparing the Carnot Cycle and the Otto Cycle [PDF]
Revista Brasileira de Ensino de FísicaThe 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 +2 more sources
Carnot Cycles in a Harmonically Confined Ultracold Gas across Bose–Einstein Condensation [PDF]
Entropy, 2023 Carnot cycles of samples of harmonically confined ultracold 87Rb fluids, near and across Bose–Einstein condensation (BEC), are analyzed. This is achieved through the experimental determination of the corresponding equation of state in terms of the ...
Ignacio Reyes-Ayala +6 more
doaj +2 more sources
Improved Chambadal Model with New Optimization Results [PDF]
EntropyThis paper presents a continuation of the Chambadal model optimization of the irreversible Carnot engine. We retrieved the results presented in the Special Issue “Carnot Cycle and Heat Engine Fundamentals and Applications II” and enriched them with new ...
Michel Feidt, Monica Costea
doaj +2 more sources
A Preliminary Design and Modeling Analysis of Two-Phase Volumetric Expanders for a Novel Reversible Organic Rankine-Based Cycle for Carnot Battery Technology [PDF]
Applied Sciences, 2022 Carnot battery technology appears to be a promising solution to increase the development of power generation and offers a good solution for high-capacity, day-to-day energy storage.
Sindu Daniarta +2 more
doaj +2 more sources
Construction and Optimization of the Quantum Analog of Carnot Cycles [PDF]
Phys. Rev. E 92, 012118 (2015), 2015 The quantum analog of Carnot cycles in few-particle systems consists of two quantum adiabatic steps and two isothermal steps. This construction is formally justified by use of a minimum work principle. It is then shown, without relying on any microscopic interpretations of work or heat, that the heat-to-work efficiency of the quantum Carnot cycle thus ...
Gaoyang Xiao, Jiangbin Gong
arxiv +3 more sources
Golden section in the Carnot cycle [PDF]
Physics-Uspekhi, 2000 Some aspects of classical thermodynamics are analyzed for the presence of duality and of the golden section.
Valerian V. Popkov, Evgenii V. Shipitsyn
openaire +3 more sources
Efficiency at maximum power output of an irreversible Carnot-like cycle with internally dissipative friction [PDF]
, 2012 We investigate the efficiency at maximum power of an irreversible Carnot engine performing finite-time cycles between two reservoirs at temperatures $T_h$ and $T_c ...
I. I. Novikov +5 more
core +2 more sources