环形狭缝中沸腾传热特性的研究  

INVESTIGATION ON THE CHARACTERISTICS OF BOILING HEAT TRANSFER THROUGH NARROW ANNULAR CHANNELS

作　　者：苏顺玉[1] 黄素逸[1] 王晓墨[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工程热物理学报》2004年第3期442-444,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.50076014);国家重点基础研究发展规划项目(No.G2000026303)

摘　　要：从理论上分析了影响沸腾传热特性的各种因素,以间隙为 1 mm～2 mm的环形狭缝通道中流动沸腾传热的实验数据为基础,给出了三种计算环形狭缝中流动沸腾传热的准则关系式。分别将计算结果与实验数据进行了比较,找出了影响狭缝中沸腾传热的关键因素,确定了可以用来预测该实验范围内的流动沸腾传热的准则关系式。Factors concerning the characteristics of boiling heat transfer are analyzed theoreti- cally.Based on the experimental data of boiling heat transfer through annular channels with the gaps of 1mm～2mm,three correlations which will be used to calculate the heat transfer in the similar con- ditions are given here.The results obtained from these correlations are compared with experimeotal data,respectively.The main factors having influence on boiling heat transfer through narrow chan- nels,and the desirable correlation are figured out.This correlation can be used to predict the flow boiling heat transfer within the range of said experiment.

关 键 词：环形狭缝 流动沸腾 传热特性 准则关系式 

分 类 号：TK124[动力工程及工程热物理—工程热物理]