Results 21 to 30 of about 2,896,907 (259)

Nonlinear Thermodynamic Analysis and Optimization of a Carnot Engine Cycle [PDF]

open access: goldEntropy, 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

Onsager coefficients of a finite-time Carnot cycle [PDF]

open access: yesPhysical Review E, 2009
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 $T_\mathrm{h}-T_\mathrm{c}\to 0$ where $T_\mathrm{h}$ and $T_\mathrm{c}$ are the temperatures of the hot and cold heat reservoirs ...
Izumida, Yuki, Okuda, Koji
core   +5 more sources

On reversible, endoreversible, and irreversible heat device cycles versus the Carnot cycle: a pedagogical approach to account for losses [PDF]

open access: green, 2016
In this work we analyze the deviations of reversible cycles (for both heat engines and refrigerators) from the corresponding Carnot cycle operating between the same extreme temperatures, and deviations of irreversible cycles from their corresponding ...
Julián González-Ayala   +3 more
openalex   +2 more sources

Improved Chambadal Model with New Optimization Results [PDF]

open access: yesEntropy
This 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

open access: yesApplied 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

Golden section in the Carnot cycle [PDF]

open access: bronzePhysics-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
openalex   +3 more sources

Preliminary prospects of a Carnot-battery based on a supercritical CO2 Brayton cycle

open access: greenActa Polytechnica, 2021
As a part of the change towards a higher usage of renewable energy sources, which naturally deliver the energy intermittently, the need for energy storage systems is increasing. For the compensation of the disturbance in power production due to inter-day
Karin Rindt   +2 more
doaj   +3 more sources

Symmetry in thermal cycles and processes [PDF]

open access: yesiScience
Summary: Symmetry analysis is a cutting-edge research approach in physics, yet its application in macroscopic energy systems remains limited. This study demonstrates its potential to provide valuable insights for a deeper understanding and development of
Huan Guo   +5 more
doaj   +2 more sources

Construction and optimization of a quantum analog of the Carnot cycle [PDF]

open access: greenPhysical review. E, Statistical, nonlinear, and soft matter physics, 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.
Gaoyang Xiao, Jiangbin Gong
openalex   +3 more sources

Control strategy and performance of a small-size thermally integrated Carnot battery based on a Rankine cycle and combined with district heating

open access: hybridEnergy Conversion and Management
Chiara Poletto   +5 more
openalex   +2 more sources

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