Results 11 to 20 of about 3,557,380 (389)

The saturated and supercritical Stirling cycle thermodynamic heat engine cycle

open access: yesAIP Advances, 2018
On the assumption that experimentally validated tabulated thermodynamic properties of saturated fluids published by the National Institute of Standards and Technology are accurate, a theoretical thermodynamic cycle can be demonstrated that produces a net-
Matthew David Marko
doaj   +2 more sources

Quantum thermodynamic Carnot and Otto-like cycles for a two-level system [PDF]

open access: green, 2012
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 -
Gian Paolo Beretta
openalex   +4 more sources

A Theoretical Study on the Thermodynamic Cycle of Concept Engine with Miller Cycle

open access: yesProcesses, 2021
The Atkinson cycle, where expansion ratio is higher than the compression ratio, is one of the methods used to improve thermal efficiency of engines.
Jungmo Oh, K. Noh, Changhee Lee
semanticscholar   +1 more source

Autonomous Implementation of Thermodynamic Cycles at the Nanoscale [PDF]

open access: yesPhysical Review Letters, 2021
Improved presentation and extended Appendix; accepted by ...
Gernot Schaller   +4 more
openaire   +5 more sources

Thermodynamic cycles in Josephson junctions [PDF]

open access: yesScientific Reports, 2019
AbstractA superconductor/normal metal/superconductor Josephson junction is a coherent electron system where the thermodynamic entropy depends on temperature and difference of phase across the weak-link. Here, exploiting the phase-temperature thermodynamic diagram of a thermally isolated system, we argue that a cooling effect can be achieved when the ...
Alessandro Braggio   +6 more
openaire   +5 more sources

Quantum thermodynamic cooling cycle [PDF]

open access: yesPhysical Review E, 2001
The quantum-mechanical and thermodynamic properties of a 3-level molecular cooling cycle are derived. An inadequacy of earlier models is rectified in accounting for the spontaneous emission and absorption associated with the coupling to the coherent driving field via an environmental reservoir.
Ronnie Kosloff   +2 more
openaire   +4 more sources

Pyroelectrically-driven chemical reactions described by a novel thermodynamic cycle.

open access: yesPhysical Chemistry, Chemical Physics - PCCP, 2020
Pyroelectrocatalysis is the conversion of thermal energy directly into chemical energy. On the background of renewable energies and the need for efficient industrial processes, the conversion of waste heat into hydrogen is of special relevance. Since the
Mateo U de Vivanco   +6 more
semanticscholar   +1 more source

A review on Thermodynamics in Water Cycle with Emphasizing on Entropy and Maximum Entropy Production Principle [PDF]

open access: yesعلوم و مهندسی آب و فاضلاب, 2022
Hydrological cycle is directed into thermodynamic non-equilibrium state and maximum entropy production through thermodynamic processes. Therefore, it is possible to understand and describe hydrological cycle through computation of entropy production rate
Diba Ghonchepour, Abdolreza Bahremand
doaj   +1 more source

Analysis of the Thermodynamic Characteristics of a Hyper-Compressor through Numerical Simulation and Experimental Investigation

open access: yesApplied Sciences, 2023
Hyper-compressors play an important role in polymer production. However, due to the extremely high pressure and complex geometries, it is difficult to monitor and calculate the thermodynamic characteristics and pressure pulsation.
Lanlan Yang, Xiaohan Jia, Xueyuan Peng
doaj   +1 more source

New Supercritical Parameter Coal-Fired Power Generation System Structure Design Technology

open access: yes发电技术, 2019
According to the basic principle of the irreversible thermodynamic cycle value, the irreversible process of the thermodynamic cycle system was analyzed.
Jinfu YANG   +4 more
doaj   +1 more source

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