Modelling of Frost Growth in Simple Geometries and Passages

M. Fossa and G. Tanda (Italy)

Keywords

: Energy Flow Modelling, Frost GrowthModelling, Heat/Mass Transfer Modelling

Abstract

Processes involving heat transfer from a humid air stream to a cold surface, with simultaneous deposition of frost, are of great importance in a variety of energy systems. This paper provides a simple model of frost growth; main frost properties (thickness, surface temperature, deposited mass, density of frost) are predicted as functions of time and location. Comparison of numerical predictions with literature data obtained in simple geometries and passages (flat plates, parallel plate channels) under forced and free convection of the humid air flow are presented and discussed.

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