Experimental study of the effects of fin surface characteristics on defrosting behavior

作者: Caihua Liang , Feng Wang , Yan Lü , Chunxiao Wu , Xiaosong Zhang

DOI: 10.1016/J.APPLTHERMALENG.2014.09.082

关键词: Water retentionLayer (electronics)EvaporationComposite materialMaterials scienceThermodynamicsAir source heat pumpsFrost (temperature)FinWater massDefrosting

摘要: Abstract The defrosting behavior of an air source heat pump includes melting, drainage and evaporation, which shows different characteristics on fins with surface characteristics. This paper presents investigation the effects a fin. A frosting/defrosting experimental system was constructed to implement visual research process frost melting molten water retention were analyzed compared. time significant. There obvious differences in among fins. Retained formed thin film hydrophilic fin, while only few spherical droplets small sizes stayed super hydrophobic fin because layer released from it. retained mass least, reduced energy for evaporation. Repeated experiments showed almost same as those first run.

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