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.
出处
《制冷》
2011年第3期76-79,共4页
Refrigeration
关键词
析湿工况
翅片效率
换热器
Dehumidifying conditions
Fin efficiency
Heat exchanger
