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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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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. In this paper we study the efficiency of a heat engine operating between two finite-size heat sources with initial temperature differences.
Ma YH.
europepmc +9 more sources
A sublimation heat engine. [PDF]
Nat Commun, 2015 Heat 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 ...
Wells GG +3 more
europepmc +8 more sources
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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Hidden symmetries and nonlinear constitutive relations for tight-coupling heat engines [PDF]
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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Dissipative heat engine is thermodynamically inconsistent [PDF]
, 2009 A heat engine operating on the basis of the Carnot cycle is considered, where the mechanical work performed is dissipated within the engine at the temperature of the warmer isotherm and the resulting heat is added to the engine together with an external heat input.
Gorshkov, V. G., Makarieva, A. M.
arxiv +3 more sources
Quantum heat engine with continuum working medium [PDF]
J. Phys. A 40, 8655-8664 (2007), 2006 We introduce a new quantum heat engine, in which the working medium is a quantum system with a discrete level and a continuum. Net work done by this engine is calculated and discussed. The results show that this quantum heat engine behaves like the two-level quantum heat engine in both the high-temperature and the low-temperature limits, but it ...
Allahverdyan A E +5 more
arxiv +3 more sources
Solutions and Heat Engines [PDF]
Nature, 1929 IT is not usual for an author to complain of a review of his book; but I confess that the theory of osmotic pressure put forward (in place of an account of my own reasoning) by the reviewer, in NATURE of Feb. 16, of my book “Gases and Liquids”, almost took my breath away. As the reviewer's reply, in NATURE of Mar. 9, to Prof.
J. S. Haldane
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Information Arbitrage in Bipartite Heat Engines [PDF]
Physical Review X, 2023 Heat engines and information engines have each historically served as motivating examples for the development of thermodynamics. While these two types of systems are typically thought of as two separate kinds of machines, recent empirical studies of ...
Matthew P. Leighton +2 more
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Holographic Heat Engines as Quantum Heat Engines [PDF]
Class. Quant. Grav. 37, 034001 (2019), 2019 Certain solutions of Einstein's equations in anti-de Sitter spacetime can be engineered, using extended gravitational thermodynamics, to yield `holographic heat engines', devices that turn heat into useful mechanical work. On the other hand, there are constructions (both experimental and theoretical) where a series of operations is performed on a small
arxiv +5 more sources