Results 281 to 290 of about 735,606 (326)

Nonlinear radiative heat flux and heat source/sink on entropy generation minimization rate

Physica B: Condensed Matter, 2018
Entropy generation minimization in nonlinear radiative mixed convective flow towards a variable thicked surface is addressed. Entropy generation for momentum and temperature is carried out.
T. Hayat, M. W. A. Khan, M. I. Khan, A. Alsaedi   +3 more
semanticscholar   +1 more source

Numerical simulation for 3D rotating flow of nanofluid with entropy generation

International Journal of Modelling and Simulation, 2022
This research article addresses entropy generation in the radiative flow of nanoliquid by considering activation energy and rotating frame. Impacts of viscous dissipation, porous medium, and velocity slip condition are considered for the current analysis.
A. Aziz, Asad Aziz, I. Ullah, M. Subhani
semanticscholar   +1 more source

A general rate-distortion converse bound for entropy-constrained scalar quantization

2016 IEEE International Symposium on Information Theory (ISIT), 2016
We derive a lower bound on the smallest output entropy that can be achieved via scalar quantization of a source with given expected quadratic distortion. As the allowed distortion tends to zero, the bound converges to the output entropy achieved by a uniform quantizer, thereby recovering the result by Gish and Pierce that uniform quantizers are ...
Tobias Koch 0001, Gonzalo Vazquez-Vilar
openaire   +1 more source

Entropy generation and energy conversion rate for the peristaltic flow in a tube with magnetic field

Energy, 2015
Noreen Sher Akbar
exaly   +2 more sources

Comparison of Entropy Generation Rate Calculation Methods for Engineering Applications

43rd AIAA Thermophysics Conference, 2012
Physics-based modeling and simulation requires proper formulation of the fundamental equations for numerical solution in order to best-represent the physical system being modeled. A standard engineering method to calculate the entropy generation rate is to assume steady flow and then use the steady entropy balance equation.
John Doty, Jose Camberos, Kirk Yerkes
openaire   +1 more source

Total entropy generation rate minimization configuration of a membrane reactor of methanol synthesis via carbon dioxide hydrogenation

Science China Technological Sciences, 2022
Penglei Li, Lingen Chen, Shaojun Xia, Rui Kong, Y. Ge   +4 more
semanticscholar   +1 more source

Entropy Generation Rate for Performance of Heat Transfer in Heat Exchangers

2022
This chapter provides a specific study of the performance of thermal systems, principally heat exchangers, which are applied in several industrial applications such as chemical industry, energetic industry, industrial lasers, and so on. These thermodynamics systems were critical in transferring heat from a higher to a lower temperature fluid. They have
openaire   +1 more source

On the equivalence between the minimum entropy generation rate and the maximum conversion rate for a reactive system

Energy Conversion and Management, 2013
Abstract The analysis of the equivalence between the minimum entropy generation (MEG) rate and the maximum conversion rate for a reactive system is the main purpose of this paper. While being used as a strategy of optimization, the minimum entropy production was applied to the production of propylene glycol in a Continuous Stirred-Tank Reactor (CSTR)
Heleno Bispo, Nilton Silva, Romildo Brito, João Manzi   +3 more
openaire   +1 more source

Investigation of Hot Film Calibration for Entropy Generation Rate Calculations

Volume 1: Fora, Parts A and B, 2002
The objective of this paper is to investigate in detail the relationship between results obtained from flow over a circular cylinder in cross flow using Hot Film and Hot Wire Constant Temperature Anemometry (C.T.A.). The experimental results are compared with those obtained using numerical methods. The results obtained from Hot Wire Anemometry are used
R. Mahon, P. Frawley, M. R. D. Davies
openaire   +1 more source

Entropy production rate and time-reversibility for general jump diffusions on RRn

Chaos: An Interdisciplinary Journal of Nonlinear Science
This paper investigates the entropy production rate and time-reversibility for general jump diffusions (Lévy processes) on Rn. We first formulate the entropy production rate and explore its associated thermodynamic relations for jump diffusions. Subsequently, we derive the entropy production rate using the relative entropy between the forward and time ...
Qi Zhang, Yubin Lu
openaire   +2 more sources