Naslov
Drying of solids; estimation of the mathematical model parameters

Autori
Sander, Aleksandra ; Prlić Kardum, Jasna ; Glasnović, Antun

Izvornik
Canadian journal of chemical engineering (0008-4034) 88 (2010), 5; 822-829

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
drying ; kinetics ; mathematical modeling ; parameter identification ; porous media

Sažetak
In order to determine physical meaning of a thin-layer mathematical model parameter, the Page model was modified and tested on numerous experimental data. Applicability of the model was tested on the drying kinetics data, X(t), of eleven different types of the porous materials and dried in a convective, vacuum and/or microwave dryers under the predetermined external process conditions. During the entire drying time the drying kinetics of all the investigated materials and heating methods were successfully correlated with the modified Page model. The evaluated values of a new parameter, tk, corresponded to the time at which diffusion, as a governing mechanism of moisture movement through the material, started. The results were confirmed by the pore size distribution of some materials.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA