中国电机工程学报2017，Vol.37Issue(5)：1441-1447,7.DOI:10.13334/j.0258-8013.pcsee.151960
板式换热器中水酒精混合蒸气凝结换热特性的实验研究
Experimental Investigations on Water-ethanol Mixed Vapor Condensation Heat Transfer in Plate Heat Exchanger
摘要
Abstract
An experimental system was established to investigate the condensation heat transfer coefficient of ethanol-water vapor mixtures in a plate heat exchanger.The experiment was carried out under different pressures (70,80,90kPa) and different mass concentrations of gas phase alcohol (0％,1％,10％,50％),different mixed vapor speeds (15,25m/s).The results showed that,other things being equal,heat transfer coefficient increased with vapor quality rising.When pressure was 90kPa and concentration was 1％,heat transfer coefficient increased obviously while compared to pure water vapor at the same experimental condition,increased by about 25％,but heat transfer coefficient decreased with increasing alcohol concentration.The vapor pressure was greater,the heat transfer coefficient was higher,and the effect of vapor velocity on heat transfer coefficient followed the same rule.On the basis of experimental data,mixed vapor condensation heat transfer model was studied by introducing Jockob criterion,the experimental value and calculated value contrast error was between-35％～+35％.关键词
板式换热器/水-酒精混合蒸气/凝结换热系数Key words
plate heat exchange/water-ethanol vapor/heat transfer coefficient分类
能源科技引用本文复制引用
胡申华,彭建军,高策..板式换热器中水酒精混合蒸气凝结换热特性的实验研究[J].中国电机工程学报,2017,37(5):1441-1447,7.基金项目
国家自然科学基金项目(50966003,51166013) （50966003,51166013）
南京工程学院校级科研基金项目资助(YKJ201533).Project supported by the National Natural Science Foundation of China (50966003,51166013) （YKJ201533）
The Scientific Research Foundation of Nanjing Institute of Technology (YKJ201533). （YKJ201533）
