AN EFFICIENT METHOD FOR SIMULTANEOUSLY DETERMINING THERMAL CONDUCTIVITY AND SPECIFIC HEAT SOLIDS IN THE FORM OF AN INVERSE PROBLEM

Autor:	Joaquín Zueco, C.F. González Fernández, Francisco Alhama
Rok vydání:	2004
Předmět:	Physics Specific heat General Chemical Engineering Mathematical analysis Thermodynamics Inverse problem Conductivity Condensed Matter Physics Temperature measurement Network method Atomic and Molecular Physics and Optics Thermal conductivity A priori and a posteriori Waveform
Zdroj:	International Communications in Heat and Mass Transfer. 31:929-937
ISSN:	0735-1933
DOI:	10.1016/j.icheatmasstransfer.2004.05.003
Popis:	An efficient new approach is proposed for simultaneously estimating thermal conductivity and specific heat in the form of an inverse problem using the network method as the numerical tool and three points of measurement in the solid. The approach provides estimations of the functions k(T) and c c (T), regardless of the waveform of those functions even without a priori information on the kind of dependence concerned. The solutions are reached by a piece-wise functions, whose number of stretches may be specified. The input data (temperature measurements) are obtained by numerically solving the direct problem and also by the network method, using a normal random error to simulate real measurements. Estimations of different kinds of real dependencies are obtained both for conductivity and specific heat
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c476196f0e8f2e4ed0cbffbeffbe048 https://doi.org/10.1016/j.icheatmasstransfer.2004.05.003 Zobrazit plný text záznamu Full Text from ScienceDirect