Results 11 to 20 of about 3,496,599 (369)

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

Thermodynamic Analysis of Binary and Trinary Power Cycles Fueled with Methane–Hydrogen Blends

open access: yesInventions, 2022
The development of hydrogen energetics is a possible way to reduce emissions of harmful substances into the atmosphere in the production of electricity.
Vladimir Kindra   +4 more
doaj   +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

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

Performance Simulation of the Active Magnetic Regenerator under a Pulsed Magnetic Field

open access: yesEnergies, 2022
Magnetic refrigeration is acknowledged as a potential substitute for the conventional vapor-compression refrigeration technology, owing to its high efficiency and environmental friendliness.
Limei Shen   +5 more
doaj   +1 more source

Definition of the Thermodynamic Cycle of a Biomass-Fueled Internal Combustion Engine

open access: yesEnergies, 2023
Climate change and the depletion of fossil fuels make it urgent to find an alternative to oil-based fuels, especially in machines powered by internal combustion engines.
Gonzalo Suanes   +2 more
doaj   +1 more source

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

Investigation of a Thermal Power Pumping cycle system using alternative working fluids

open access: yesInternational Journal of Sustainable Energy, 2022
This paper presents a comparative analysis of the potential working fluids for a promising thermodynamic cycle (Thermal Power Pump cycle) for the utilisation of low-grade heat.
Y. T. Abirham   +3 more
doaj   +1 more source

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