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Modeling and Performance Optimization of an Irreversible Two-Stage Combined Thermal Brownian Heat Engine [PDF]

open access: yesEntropy, 2021
Based on finite time thermodynamics, an irreversible combined thermal Brownian heat engine model is established in this paper. The model consists of two thermal Brownian heat engines which are operating in tandem with thermal contact with three heat ...
Congzheng Qi   +4 more
doaj   +2 more sources

Space-fractional quantum heat engine based on level degeneracy [PDF]

open access: yesScientific Reports, 2021
In order to examine the work and efficiency of the space-fractional quantum heat engine, we consider a model of the space-fractional quantum heat engine which has a Stirling-like cycle with a single particle under infinite potential well as an example ...
Ekrem Aydiner
doaj   +2 more sources

Superradiant Quantum Heat Engine. [PDF]

open access: yesSci Rep, 2015
AbstractQuantum physics revolutionized classical disciplines of mechanics, statistical physics and electrodynamics. One branch of scientific knowledge however seems untouched: thermodynamics. Major motivation behind thermodynamics is to develop efficient heat engines.
Hardal AÜ, Müstecaplıoğlu ÖE.
europepmc   +7 more sources

A sublimation heat engine. [PDF]

open access: yesNat Commun, 2015
AbstractHeat engines are based on the physical realization of a thermodynamic cycle, most famously the liquid–vapour Rankine cycle used for steam engines. Here we present a sublimation heat engine, which can convert temperature differences into mechanical work via the Leidenfrost effect.
Wells GG   +3 more
europepmc   +6 more sources

Autonomous circular heat engine [PDF]

open access: yesPhysical Review E, 2022
A dynamical model of a highly efficient heat engine is proposed, where an applied temperature difference maintains the motion of particles around the circuit consisting of two asymmetric narrow channels, in one of which the current flows against the applied thermodynamic forces.
Giuliano Benenti   +3 more
openaire   +6 more sources

Equivalent Heat Load Test on Hot Aircraft Engine Components [PDF]

open access: yesArchives of Foundry Engineering, 2023
The paper presents the assumptions and methodology for investigating equivalent heat load testing of hot aircraft engine components. The basic heat loads occurring in an aircraft engine during aircraft flight are characterised.
M. Mróz   +3 more
doaj   +1 more source

8-stroke low heat rejection engine

open access: yesEnergy Reports, 2022
In a combustion engine, 25% of the energy present in the fuel is wasted as heat; this heat is dissipated to avoid overheating and prevent damages. This article presented a simulation work developed to study an internal combustion engine with a low heat ...
D. Silva Cardoso, P. Oliveira Fael
doaj   +1 more source

Investigation of effect of heat exchanger size on power output in low-temperature difference Stirling engines [PDF]

open access: yesE3S Web of Conferences, 2021
The Stirling engine is capable of converting any source of thermal energy into kinetic energy, which makes it an attractive option for utilizing low-temperature sources such as geothermal or waste heat below 100 °C.
Hasanovich Linda, Nobes David
doaj   +1 more source

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