Frost formation and heat transfer on a cold surface in ice fog

In this paper a semi-empirical model describing heat and mass transfer on a cold surface in humid air under supersaturated frosting conditions is presented. The lack of psychrometric data in the supersaturated zone of the psychrometric chart has historically impeded the ability of researchers to acc...

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Bibliographic Details
Published in:International journal of refrigeration 2005-06, Vol.28 (4), p.538-546
Main Authors: Mago, Pedro J., Sherif, S.A.
Format: Article
Language:English
Subjects:
Air humide
Applied sciences
Brouillard
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fog
Frost
Givrage
Heat transfer
Humid air
Mass transfer
Modelling
Modélisation
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Surface
Theoretical studies. Data and constants. Metering
Transfert de chaleur
Transfert de masse
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Summary:In this paper a semi-empirical model describing heat and mass transfer on a cold surface in humid air under supersaturated frosting conditions is presented. The lack of psychrometric data in the supersaturated zone of the psychrometric chart has historically impeded the ability of researchers to accurately predict heat and mass transfer in supersaturated air. The work described in this paper has been partially made possible by developing a systematic procedure to compute the properties of supersaturated air, especially in the low temperature zone of the psychrometric chart. Development of such a capability will allow us to predict the amount of frost collected, the frost deposition and heat transfer rates, frost thickness and surface temperature, and other important parameters.
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2004.10.004