Frosting model for predicting macroscopic and local frost behaviors on a cold plate

Title
Frosting model for predicting macroscopic and local frost behaviors on a cold plate
Author
이관수
Keywords
Frosting model; Frost growth; Frost densification; CFD; Modified Sauter mean diameter
Issue Date
2015-03
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v. 82, Page. 135-142
Abstract
A computational fluid dynamics (CFD)-based model to predict macroscopic and local frost behaviors on a cold plate is described. The model was validated by comparing its results with a range of experimental data. The effects upon the model of various factors that affect frost formation were studied, including the inlet velocity, relative humidity, and cold plate temperature; the numerical predictions agreed very well with experimental data, with a maximum deviation of 03 mm in the average frost thickness. Similarly, the modeled average frost density was in good agreement with experimental data, with an error of 10% after 60 min and a maximum error of 25% during the early stages of frost formation. The model outlined herein is able to describe the localized details of frost growth, including the distribution of frost density and the absolute humidity along the y-axis, in contrast to existing approaches. (C) 2014 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0017931014010205http://hdl.handle.net/20.500.11754/22956
ISSN
0017-9310; 1879-2189
DOI
10.1016/j.ijheatmasstransfer.2014.11.048
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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