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Effects of Humidity and Velocity on Frost Distribution Characteristics of Humid Air Flow on Cold Surfaces  

Kwon Jeong-Tae (Department of Mechanical Engineering, Hoseo University)
Rew Keun-Ho (Department of Mechanical Engineering, Hoseo University)
Lim Hyo-Jae (Department of Mechanical Engineering, Hoseo University)
Han Ji-Won (Department of Mechanical Engineering, Hoseo University)
Kwon Young Chul (Division of Mechanical Engineering, Sunmoon University)
Publication Information
Journal of Energy Engineering / v.14, no.4, 2005 , pp. 213-218 More about this Journal
Abstract
In order to understand the heat and mass transfer characteristics of humid airflow in frosting conditions, a flat plate of aluminum with cooling modules located in the central part of the plate was used. A microscope system (resolution of 0.05 mm) was used for the measurement of local thickness of frost at seven points along the plate in the flow direction. For the total mass of frost at each test operation, an electronic balance (resolution of 1 mg) was used. The local frost thickness distributions far various test conditions were presented along with the frost mass data measured at the given operating times. The effect of humidity and velocity of humid air on frosting were analyzed.
Keywords
Frost thickness distribution; Frost mass; Humid airflow; Heat transfer;
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