Results 1 to 10 of about 11,320,320 (289)

Entropy Production in the Theory of Heat Conduction in Solids [PDF]

open access: yesEntropy, 2016
The evolution of the entropy production in solids due to heat transfer is usually associated with the Prigogine’s minimum entropy production principle.
Federico Zullo
doaj   +7 more sources

Analysis of flow loss characteristics of slanted axial-flow pump device based on entropy production theory [PDF]

open access: yesRoyal Society Open Science, 2022
Slanted axial-flow pump devices are widely applied in urban water supply, irrigation and drainage engineering fields. The second law of thermodynamics is applied to investigate the flow loss characteristics of the 30° slanted axial-flow pump model ...
Fan Yang   +6 more
doaj   +2 more sources

Analysis of Hydraulic Losses in Vortex Rope Inside the Draft Tube of Francis Pump-Turbine Based on Entropy Production Theory

open access: yesMachines, 2023
The existence of vortex ropes inside the draft tube significantly impacts hydraulic efficiency and operational stability, and few studies on the formation mechanism of vortex ropes and hydraulic loss problems have been explored.
Haobo Wang   +3 more
doaj   +3 more sources

Asymptotic Thermodynamics for Chemical Reaction Networks with Fast-Slow Kinetics [PDF]

open access: yesEntropy
We present a systematic derivation of asymptotic expansions of nonequilibrium thermodynamics for chemical reaction networks (CRNs) based on singular perturbation theory. For a general reversible CRN with fast–slow kinetics, we obtain the first and second
Liangrong Peng, Liu Hong
doaj   +2 more sources

Characteristics of Cavitation Flow for a Regulating Valve Based on Entropy Production Theory

open access: yesEnergies, 2022
A regulating valve is a key control element in the coal liquefaction industry, whose flow field distribution is related to the entropy production. In order to make a quantitative evaluation of the energy loss in the cavitation flow and calculate the ...
Jie He   +7 more
doaj   +3 more sources

External Entropy Production and Human Evolution Toward Multi-Body Life [PDF]

open access: yesEntropy
Ancient human beings started “external entropy production” in a late stage of evolution, in addition to the internal entropy production by which energy was dissipated within the body of life, as previously described consistently with the birth of life by
Yasuji Sawada, Kenji Toma
doaj   +2 more sources

Analysis of Energy Loss Characteristics in an Axial-Flow Reactor Coolant Pump Based on Entropy Production Theory

open access: yesEnergies
As the critical component of a nuclear power plant (NPP), the reactor coolant pump (RCP) will suffer energy losses during operation, which can lead to a series of safety issues and adversely affect the efficiency and stability of the NPP.
Zhong Li   +4 more
doaj   +3 more sources

Towards Pragmatist Thermodynamics: An Essay on the Natural Philosophy of Entropy and Sustainability [PDF]

open access: yesEntropy
Classical thermodynamics (CT) has become integrated into everyday life, especially through its applications in engineering. In contrast, out-of-equilibrium thermodynamics (OET) is often viewed as a fundamental science that seems distant from daily ...
Carsten Herrmann-Pillath
doaj   +2 more sources

Cavitation Characteristics and Structure Optimization of Two-Dimensional Valve Based on Entropy Production Theory [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
In addition to noise and vibration, cavitation also lowers the efficiency, performance, and working lives of two-dimensional valves. To study the effect of cavitation on the flow characteristics of two-dimensional valves, standard  turbulence model and ...
Y. Zhao, J. Mi, J. Ruan
doaj   +1 more source

The highest entropy production during diffusion [PDF]

open access: yesComputer Methods in Materials Science, 2018
In the present paper, the theory of the highest entropy production is discussed. It allows to predict, which phases will grow during the multiphase ternary interdiffusion process.
Daria Serafin, Bartek Wierzba
doaj   +1 more source

Home - About - Disclaimer - Privacy