含湿混合气体在垂直管内对流冷凝换热实验研究  

An Experimental Study on Convection-Condensing Heat Transfer of Wet Flue Gas in a Vertical Tube

作　　者：李孝萍 贾力[1] 孙金栋[1] 

机构地区：[1]北京建筑工程学院城建系,北京100044

出　　处：《北京建筑工程学院学报》2002年第1期19-23,共5页Journal of Beijing Institute of Civil Engineering and Architecture

基　　金：教育部科技重点项目 ;项目号 :0 0 12 9;北京市自然科学基金 ;项目号 :3 0 12 0 0 6

摘　　要：本文介绍了含湿混合气体在垂直管内对流冷凝换热的特点 ,并对其进行了实验研究 ;通过对实验数据的处理和分析 ,得出实验点与关联式误差在± 2 0 %的范围内 ,气膜热阻是混合气体中水蒸汽凝结的主要热阻 ;The characteristic of convection-condensing heat transfer of wet flue gas in a vertical tube was introduced and it was studied experimentally. Experimental results showed that the fractional error of experimental data and empirical formula was in ±20%. Gas film is main thermal resistance in the process of vapor condensation. Some factors affecting heat transfer of mixture gas were analyzed finally.

关 键 词：含湿混合气 冷凝 换热 燃气锅炉 

分 类 号：TK229.8[动力工程及工程热物理—动力机械及工程]