Results 1 to 10 of about 57 (52)
Analysis on Thermodynamic Perfectibility of Room Air Conditioners
Zhileng xuebao, 2013 According to analysis on the energy efficiency standards of the constant speed room air conditioner and the variable speed type, differences between the two kinds of air conditioners exist in division standard, grades of energy efficiency and outdoor ...
Li Xiaofeng, Ma Yitai, Yan Qiuhui
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Perspective—On the thermodynamics of perfect unconditional security [PDF]
Applied Physics Letters, 2021 A secure key distribution (exchange) scheme is unconditionally secure if it is unbreakable against arbitrary technological improvements of computing power and/or any development of new algorithms. There are only two families of experimentally realized and tested unconditionally secure key distribution technologies: quantum key distribution (QKD), the ...
Christiana Chamon, Laszlo B. Kish
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Case Studies in Thermal Engineering, 2022 The cascade refrigeration system with two-stage compression (CRST) with R1150/R717 as the refrigerant group was studied to replace the three-stage cascade refrigeration system (TCRS) with R1150/R41/R717 as the refrigerant group, aiming to improve the ...
Zhili Sun, Yi’an Wang
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Thermodynamical stability for a perfect fluid [PDF]
The European Physical Journal C, 2017 According to maximum entropy principle, it has been proved that the gravitational field equations could be derived by the extrema of total entropy for perfect fluid, which implies that thermodynamic relations contain information of gravity. In this manuscript, we obtain a criterion for thermodynamical stability of an adiabatic, self-gravitating perfect
Fang, Xiongjun +2 more
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Relativistic thermodynamics of perfect fluids
, 2022 The relativistic continuity equations for the extensive thermodynamic quantities are derived based on the divergence theorem in Minkowski space outlined by Stückelberg. This covariant approach leads to a relativistic formulation of the first and second laws of thermodynamics.
Brechet, Sylvain D., Girard, Marin C. A.
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Dynamic and thermodynamic stability of charged perfect fluid stars
Classical and Quantum Gravity, 2023 Abstract We perform a thorough analysis of the dynamic and thermodynamic stability for the charged perfect fluid star by applying the Wald formalism to the Lagrangian formulation of Einstein–Maxwell-charged fluid system. As a result, we find that neither the presence of the additional electromagnetic field nor the Lorentz force ...
Kai Shi +4 more
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Thermodynamic scheme of inhomogeneous perfect fluid mixtures [PDF]
Classical and Quantum Gravity, 2003 We analyze the compatibility between the geometrodynamics and thermodynamics of a binary mixture of perfect fluids which describe inhomogeneous cosmological models. We generalize the thermodynamic scheme of general relativity to include the chemical potential of the fluid mixture with non-vanishing entropy production.
Zarate, R D, Quevedo, Hernando
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Dynamic and thermodynamic stability of relativistic, perfect fluid stars [PDF]
Classical and Quantum Gravity, 2014 59 pages; v2: a few minor revisions made and several references added; v3: a few minor ...
Green, Stephen R. +2 more
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Thermodynamics of perfect fluids from scalar field theory [PDF]
Physical Review D, 2016 The low-energy dynamics of relativistic continuous media is given by a shift-symmetric effective theory of four scalar fields. These scalars describe the embedding in spacetime of the medium and play the role of St ckelberg fields for spontaneously broken spatial and time translations.
Ballesteros, G. +2 more
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Thermodynamic perfect fluid spheres admitting an orthogonal flat synchronization
Physical Review D, 2022 14 pages, 2 ...
Salvador Mengual, Joan Josep Ferrando
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