析湿工况下翅片管换热器翅片效率计算分析  

Analysis on Fin Efficiency Formulas of Fin-and-Tube Heat Exchanger Under Dehumidifying Conditions

作　　者：戴绍碧[1] 

机构地区：[1]广东石油化工学院机电工程学院,广东茂名525000

出　　处：《制冷》2011年第3期76-79,共4页Refrigeration

摘　　要：分析了析湿工况下五种翅片效率模型与实验现象的吻合性,结果表明:全湿工况翅片效率对片基温度与来流相对湿度不敏感,部分湿工况翅片效率对片基温度与来流相对湿度十分敏感,翅片效率计算应区分干、部分湿、全湿工况,并根据工况选用相应计算模型。This paper annalyses visualization and value based on five fin efficiecy formulas of fin-and-tube heat exchangers underdehumidifying condintions.Results showed that for fully wet conditon,the effect of relative himidiy and fin base temperature on the fully wet fin efficiecy is small.For partially wet surface,a considerable influence of the relative humidity and fin base temperature on the fin efficiency is encountered.Fin efficiecy formula should be elected based on fin surface conditions.

关 键 词：析湿工况 翅片效率 换热器 

分 类 号：TB657.5[一般工业技术—制冷工程] TK172[动力工程及工程热物理—热能工程]