Publicou 4 edições por ano
ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336
Indexed in
A STUDY OF WATER HOLDUP ON TWO SURFACES WITH DIFFERENT HYDROCHARACTERISTICS
RESUMO
An experimental study on water holdup on surfaces having different hydrocharacteristics was conducted to investigate the defrost performance of fin plates used in refrigerator evaporators. The aging characteristics of the surfaces were investigated. Flow patterns and surface morphologies were visualized, and their results agreed well with the aging characteristics of the surfaces. The surface with better hydrophilicity turned out to provide a lower water holdup and, in turn, a more highly efficient defrost cycle. The study on the geometry of hydrophilic surfaces on water holdup revealed that fewer and sharper edges of hydrophilic surfaces result in less water holdup and, thus, a higher defrost efficiency.