EMPIRICAL HEAT-TRANSFER AND FROST THICKNESS CORRELATIONS DURING FROSTDEPOSITION ON A CYLINDER IN CROSS-FLOW IN THE TRANSIENT REGIME

This paper reports on results of an experimental investigation where t he emphasis was placed on obtaining empirical correlations for the fro st thickness-time history and the heat transfer coefficient-time histo ry for a cylinder in humid air cross-flow. The facility employed for t he investigation consisted of a low-velocity wind tunnel comprised of a rectangular test section, a transition section and a honeycomb place d at the tunnel entrance. An external refrigerator was used to cool an antifreeze solution having a mixture of 90% methanol and 10% ethylene glycol. Measured parameters included, among other things, the heat tr ansfer coefficient as well as the frost thickness. (C) 1998 John Wiley & Sons, Ltd.