Heat Transfer Phenomena

Abderezzak, Bilal

doi:10.1016/b978-1-78548-291-5.50004-4

Cited by 3 publications

(2 citation statements)

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“…Pore transport phenomena are also determinant for the overall performance in electrocatalytic applications. In polymer electrolyte fuel cells (PEFC), the realization of higher current densities may become limited by the transport access of oxygen through the gas diffusion and/ or catalyst layers at the cathode end [51]. The low operation temperatures of PEFC, and thus intrinsically low gas diffusion coefficients, make the optimization of the pore transport paths essential to avoid oxygen transport bottlenecking performance.…”

Section: Assessment Of Pore Topologiesmentioning

confidence: 99%

FIB-SEM tomography in catalysis and electrochemistry

Ródenas

Prieto

2022

Catalysis Today

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Section: Assessment Of Pore Topologiesmentioning

confidence: 99%

FIB-SEM tomography in catalysis and electrochemistry

Ródenas

Prieto

2022

Catalysis Today

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“…A diagnosis is an act of identifying a problem by examining something, therefore whatever that problem may be or the identification or naming of it is the diagnosis. The diagnosis of the temperature changes to cover all-natural physical phenomena can be through conduction, convection, or radiation [9,10]. For the case of temperature change in a metal rod to consider a conduction phenomenon.…”

Section: Introductionmentioning

confidence: 99%

PDE-Based Mathematical Models to Diagnose the Temperature Changes Phenomena on the Single Rectangular Plate-Fin

Goeritno¹,

Prayudyanto²,

Eosina³

et al. 2023

MMEP

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The ideas of the studies in this article are back-grounded by the work diligently and carefully to relate the influence of two independent variables, e.g., distance and time on one dependent variable, i.e., temperature changes which are solved by a partial differential equation. In this article, we explain the particular features of a naturally physical system that it seeks to understand. The diagnosis of the temperature changes in a metal rod to consider a conduction phenomenon can be covered by all-natural physical phenomena through conduction. By making the mathematical equations based on partial differential equations (PDEs), it is shown that the temperature change is influenced by distance and time. The objectives of this study are (i) to make a prototype of the problem based on the one-dimensional heat conduction equation, (ii) to process the solution of the mathematical equation based on the parabolic partial differential equation (PDE) using the separation of variables, and (iii) to display the phenomena of the temperature changes as a function of the length in the copper bar and the time. Achieving the research objectives takes several stages in the research methods which include (a) making the prototype of the problem, (b) processing the solution of a mathematical equation, and (c) displaying the temperature changes phenomenon in the form of a curve. The results are (i) a mass balance is developed for a finite segment ∆𝑧 along the tank's longitudinal axis in order to derive a differential equation, (ii) the final complete solution in the form of a Fourier sine series, and (iii) a three-dimensional curve as an indication of the existence of the phenomenon of temperature changes. In general, it can be concluded that the making of a mathematical model based on partial differential equations with the method of separating variables as an analytical solution can be used to diagnose the phenomenon of temperature changes as a function of distance and time.

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