摘要
本文对超临界CO2在水平管内和水交叉流动的换热特性进行了实验研究,通过实验结果表明,CO2热流密度和质量流量的变化均对换热性能产生一定的影响。并且分析了其Re、Pr和Nu数的变化特性。以此为基础,为气体冷却器的设计提供了理论依据。
This paper investigates the heat transfer characteristics of carbon dioxide in a horizontal tube with water in the vertical cross flow form, experimental data show that the change of heat and mass flux have both great effects on the heat transfer performance.It also analyses the change characteristics of Re, Pr and Nu numbers. Based on the research, this will provide theoretical evidence for the gas cooleR＇ s design.
出处
《制冷》
2007年第1期14-17,共4页
Refrigeration
关键词
超临界
CO2
换热
Supercritical, Carbon dioxide, Heat transfer
