空气存在时水平螺旋管外膜状凝结换热的实验研究  

Experimental Research on External Film Condensation Heat Transfer of Horizontally Coiled Tubes in the Presence of Air

作　　者：朱长新[1] 章燕谋[1] 

机构地区：[1]西安交通大学

出　　处：《动力工程》1991年第4期10-16,共7页Power Engineering

摘　　要：本文用电导法测量了不同空气含量下凝结液膜厚度的分布.用实验方法研究了空气存在时凝结换热的传热特性,得到不同空气含量下凝结换热的变化规律,为生产实际和进一步研究提供了依据.The distribution of condensation film thickness in an atmosphere with different air content is measured by using electric conductance, method. Condensation heat transfer characteristic in the presence of air are experimentally studied. Laws of varying condensation heat transfer in an atmosphere with different air content are obtained, that may serve as a basis for practical design work and futher research. 12 figs, 2 table

关 键 词：螺旋管 膜状凝结 换热 换热器 

分 类 号：TK172[动力工程及工程热物理—热能工程]