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The power of a critical heat engine. [PDF]
Nat Commun, 2016 Since its inception about two centuries ago thermodynamics has sparkled continuous interest and fundamental questions. According to the second law no heat engine can have an efficiency larger than Carnot’s efficiency.
Campisi M, Fazio R.
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A quantum heat engine driven by atomic collisions. [PDF]
Nat Commun, 2021 Quantum heat engines are subjected to quantum fluctuations related to their discrete energy spectra. Such fluctuations question the reliable operation of thermal machines in the quantum regime. Here, we realize an endoreversible quantum Otto cycle in the
Bouton Q +5 more
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Modeling and Performance Optimization of an Irreversible Two-Stage Combined Thermal Brownian Heat Engine [PDF]
Entropy, 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
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Space-fractional quantum heat engine based on level degeneracy [PDF]
Scientific 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
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Hidden symmetries and nonlinear constitutive relations for tight-coupling heat engines
New Journal of Physics, 2015 Typical heat engines exhibit a kind of homotypy: the heat exchanges between a cyclic heat engine and its two heat reservoirs abide by the same function type; the forward and backward flows of an autonomous heat engine also conform to the same function ...
S Q Sheng, Z C Tu
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Bound on Efficiency of Heat Engine from Uncertainty Relation Viewpoint. [PDF]
Entropy (Basel), 2021 Quantum cycles in established heat engines can be modeled with various quantum systems as working substances. For example, a heat engine can be modeled with an infinite potential well as the working substance to determine the efficiency and work done ...
Chattopadhyay P +3 more
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Effect of Finite-Size Heat Source's Heat Capacity on the Efficiency of Heat Engine. [PDF]
Entropy (Basel), 2020 Heat engines used to output useful work have important practical significance, which, in general, operate between heat baths of infinite size and constant temperature.
Ma YH.
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A sublimation heat engine. [PDF]
Nat 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
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Topological Josephson heat engine [PDF]
Communications Physics, 2020 Topological superconductors represent a fruitful playing ground for fundamental research as well as for potential applications in fault-tolerant quantum computing.
B. Scharf +4 more
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Relativistic quantum heat engine from uncertainty relation standpoint. [PDF]
Sci Rep, 2019 Established heat engines in quantum regime can be modeled with various quantum systems as working substances. For example, in the non-relativistic case, we can model the heat engine using infinite potential well as a working substance to evaluate the ...
Chattopadhyay P, Paul G.
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