Kundenlogin 0 Einkaufswagen
Home Bücher eBücher Zeitschriften Referenzen und Berichte Autoren, Herausgeber, Rezensenten A – Z Produktindex
Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV

ISBN Druckformat: 1-56700-132-7

NON-FICK EFFECT IN ABNORMAL HIGH INTENSE DRYING PROCESS OF WET POROUS MATERIALS

Abstrakt

Because mass propagation velocity has a finite value in porous media for an unsteady mass transfer process, the hypothesis that mass propagation velocity in mass transfer process is infinite is far away from practical situation for high intense drying process in wet porous materials. Like heat transfer, a description of an unsteady humidity profile in the form of the hyperbolic equation is advanced. From the equation, wave characteristic can be seen in the mass transfer field of inner material. One-dimensional hyperbolic equation of mass transfer for high intense drying process of wet porous materials has been developed in this paper. The non-Fick phenomena in high intense drying process are analyzed by the comparison of the solutions between the Fick equation and the non-Fick equation. The calculating results show that when mass flux or mass transfer coefficient is high, the non-Fick effect is notable and it is not negligible in an intense drying process.
Home Begell Digitales Portal Begell Digitale Bibliothek Zeitschriften Bücher eBücher Referenzen und Berichte Autoren, Herausgeber, Rezensenten A – Z Produktindex Preise und Aborichtlinien Über Begell House Kontakt Language English 中文 Русский 日本語 Português Deutsch Français Español