宁静红;刘敬坤;
NING Jing-hong,LIU Jing-kun(Tianjin Key Laboratory of Refrigeration Technology,Tianjin University of Commerce,Tianjin 300134,China)

• 1:天津商业大学天津市制冷技术重点实验室

摘要(Abstract)：

通过分析国外对R290水平光滑管内和强化管内的流动凝结换热的研究,得出R290管内换热系数较常规工质高,而强化管内的凝结换热系数明显高于光滑管。另外还列举了一些典型的凝结换热关联式,并提出了进一步研究工作的建议。
By analyzing the research on condensation heat transfer and pressure drop of R290 inside horizontal plain and enhanced tubes,the result can be obtained that the heat transfer coefficient of R290 is higher than the ones of normal refrigerants and the heat transfer coefficient of enhanced tubes is significantly higher than that of plain ones.Additionally,some typical correlations are listed and some suggestions are made for further study.

关键词(KeyWords)： R290;光滑管;强化管;凝结换热
R290;plain tubes;enhanced tubes;condensation heat transfer

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 宁静红;刘敬坤;
NING Jing-hong,LIU Jing-kun(Tianjin Key Laboratory of Refrigeration Technology,Tianjin University of Commerce,Tianjin 300134,China)

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