Results 21 to 30 of about 143,000 (295)

Finite-time thermodynamics of port-Hamiltonian systems [PDF]

open access: green, 2013
In this paper, we identify a class of time-varying port-Hamiltonian systems that is suitable for studying problems at the intersection of statistical mechanics and control of physical systems.
Delvenne, Jean-Charles, Sandberg, Henrik
core   +2 more sources

Heat leak term: A signature of irreversibility in analysing the actual SI engine cycle using finite-time thermodynamics [PDF]

open access: diamondFME Transactions, 2022
Due to the headway in innovations, it ends up noticeably unavoidable to do a complex thermodynamic analysis of thermal systems. The major problem faced during the development of a thermodynamic model for the analysis is to check the feasibility of the ...
Antonio Joseph, Gireeshkumaran Thampi
openalex   +2 more sources

Quantum Thermodynamics

open access: yesEntropy, 2013
Quantum thermodynamics addresses the emergence of thermodynamical laws from quantum mechanics. The link is based on the intimate connection of quantum thermodynamics with the theory of open quantum systems.
Kosloff, Ronnie
core   +4 more sources

Global linear-irreversible principle for optimization in finite-time thermodynamics [PDF]

open access: green, 2018
There is intense effort into understanding the universal properties of finite-time models of thermal machines---at optimal performance---such as efficiency at maximum power, coefficient of performance at maximum cooling power, and other such criteria. In
Johal, Ramandeep S.
core   +2 more sources

Universal finite-time thermodynamics of many-body quantum machines from Kibble-Zurek scaling [PDF]

open access: goldPhysical Review Research, 2020
We demonstrate the existence of universal features in the finite-time thermodynamics of quantum machines by considering a many-body quantum Otto cycle in which the working medium is driven across quantum critical points during the unitary strokes ...
B S Revathy   +3 more
openalex   +2 more sources

(Finite-Time) Thermodynamics, Hyperbolicity, Lorentz Invariance: Study of an Example. [PDF]

open access: yesEntropy (Basel)
Our study lies at the intersection of three fields: finite-time thermodynamics, relativity theory, and the theory of hyperbolic conservation laws.
Guy B.
europepmc   +2 more sources

A Finite-Time Thermodynamics of Unsteady Fluid Flows [PDF]

open access: yesJournal of Non-Equilibrium Thermodynamics, 2008
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Ahlborn, Boye   +6 more
core   +4 more sources

Black hole thermodynamics in finite time [PDF]

open access: goldThe Fourteenth Marcel Grossmann Meeting, 2017
Finite-time thermodynamics provides the means to revisit ideal thermodynamic equilibrium processes in the light of reality and investigate the energetic "price of haste", i.e. the consequences of carrying out a process in finite time, when perfect equilibrium cannot be awaited due to economic reasons or the nature of the process.
Christine Gruber
openalex   +3 more sources

Efficiency Enhancement on Hybrid Power System Composed of Irreversible Solid Oxide Fuel Cell and Stirling Engine by Finite Time Thermodynamics

open access: yesEnergies, 2021
This paper presents the work for efficiency enhancement on a hybrid power system with an irreversible Solid Oxide Fuel Cell (SOFC) and Stirling Engine (SE) for various system design using the approach of finite-time thermodynamics.
Hsin-Yi Lai   +2 more
exaly   +3 more sources

Finite time thermodynamics analysis and research of pulsating heat pipe cold storage device

open access: diamondEnergy Storage and Saving, 2022
Phase change energy storage technology can effectively solve the energy mismatch in space and time. There are many disadvantages of phase change materials (PCMs), such as high supercooling, phase separation and poor heat transfer performance.
Xiaofeng Xu, Xuelai Zhang
openalex   +3 more sources

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