Modeling of frost formation over parallel cold plates

Citation
Kar. Ismail et Cs. Salinas, Modeling of frost formation over parallel cold plates, INT J REFR, 22(5), 1999, pp. 425-441
Citations number
12
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
ISSN journal
01407007 → ACNP
Volume
22
Issue
5
Year of publication
1999
Pages
425 - 441
Database
ISI
SICI code
0140-7007(199908)22:5<425:MOFFOP>2.0.ZU;2-V
Abstract
This paper numerically evaluates some of the parameters involved in modelin g the process of frost formation on flat cold surfaces subject to the flow of humid air. The model employs one-dimensional transient formulation based upon the local volume averaging technique. The modeling process was valida ted by comparison with available experimental data. Numerical experiments w ere realized to determine the best initial values of the diffusivity, initi al radius and geometry of the ice crystals. This model was applied to the k nown case of how of humid air over a single flat cold plate to predict the frost temperature, density and thickness distribution along the flow direct ion and also the void fraction. The results were compared with available re sults in the literature. The model was then extended to solve the case of f low of humid air between two parallel cold plates for which there are no av ailable results. (C) 1999 Elsevier Science Ltd and IIR. All rights reserved .