Estimation of concentration-dependent diffusion coefficient in drying process from the space-averaged concentration versus time with experimental data


Autoria(s): Loulou, Tahar; Adhikari, B. P.; Lecomte, D.
Contribuinte(s)

A. Bell (Editor-in-Chief)

Data(s)

20/11/2006

Resumo

The estimation of a concentration-dependent diffusion coefficient in a drying process is known as an inverse coefficient problem. The solution is sought wherein the space-average concentration is known as function of time (mass loss monitoring). The problem is stated as the minimization of a functional and gradient-based algorithms are used to solve it. Many numerical and experimental examples that demonstrate the effectiveness of the proposed approach are presented. Thin slab drying was carried out in an isothermal drying chamber built in our laboratory. The diffusion coefficients of fructose obtained with the present method are compared with existing literature results.

Identificador

http://espace.library.uq.edu.au/view/UQ:83289

Idioma(s)

eng

Publicador

Pergamon

Palavras-Chave #inverse problem #diffusion coefficient #drying process #minimization algorithm #averaged measured concentration #C1 #290699 Chemical Engineering not elsewhere classified #660399 Energy distribution not elsewhere classified
Tipo

Journal Article