Models for transient conduction in a flat plate subjected to a variable heat flux

Autor:	Ali Grine, Souad Harmand, Jean Yves Desmons
Rok vydání:	2007
Předmět:	Materials science Convective heat transfer Heat flux Critical heat flux Heat transfer Energy Engineering and Power Technology Thermodynamics Mechanics Heat transfer coefficient Thermal diffusivity Thermal conduction Industrial and Manufacturing Engineering Nucleate boiling
Zdroj:	Applied Thermal Engineering. 27:492-500
ISSN:	1359-4311
Popis:	This work presents analytical models allowing to identify the transient temperature distribution in a flat plate. The plate is exposed to a convective heat transfer on a face and to a heat flux on the other one. The heating flux is Heaviside (crenel type) and is maintained during a t1 time. The heating phase is followed by a relaxation one. The theoretical method is original because it uses Green’s functions method to determine the analytical solutions of the heat propagation equation in the plate during the heating and relaxation phases. These analytical solutions allow to identify the temperature distribution as well as wall heat flux versus time. The results of our work can be useful at different levels: during the identification of parameters (such as the thermal conductivity or the thermal diffusivity of a plate), during the identification of the boundary conditions (like the heating flux or the convection coefficient) in industrial processes using this kind of systems, or even with educational intents for teaching transient conduction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::08861f301db4692a9f9ba33ecf319428 https://doi.org/10.1016/j.applthermaleng.2006.06.013 Zobrazit plný text záznamu Full Text from ScienceDirect