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	Experiment study on unsteady frosting of cryogenic vertical plate surface under natural convection conditions
	Chen, Shuping; Xie, Fushou; Yao, Shuting; Han, Hongyin; Chang, Zhixin
	2012
关键词	Vertical plate Unsteady frosting Cryogenics Natural convection Experimental study
卷号	516-517
DOI	10.4028/www.scientific.net/AMR.516-517.24
页码	24-29
英文摘要	A frosting test bench was designed, and unsteady frosting on vertical plate surface was dynamically described with liquid nitrogen as working medium under natural convection conditions. The variation of frost thickness was analyzed, and the flow state of moist air and temperature distribution near the vertical plate were described. The experimental results show the unsteady frosting of vertical plate surface under natural convection and cryogenic condition actually includes several steps: formation of frost crystals, growth of frost crystals and growth of frost layer. The initial frosting rate is large, but the rate decreases as time goes on until the frost layer thickness is unchanged. Moist air conducts a top-down flow near the vertical plate, and the rest of moist air flows into the main flow. The temperature of moist air decreased systematically along the tangential direction of vertical plate from top to bottom and along the normal direction of vertical plate from far to vertical plate surface.
会议录	ELECTRICAL POWER & ENERGY SYSTEMS, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Thermodynamics ; Engineering
WOS记录号	WOS:000312042900004
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37197]
专题	石油化工学院
通讯作者	Chen, Shuping
作者单位	Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shuping,Xie, Fushou,Yao, Shuting,et al. Experiment study on unsteady frosting of cryogenic vertical plate surface under natural convection conditions[C]. 见:.

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