CO2流动沸腾换热干涸研究进展

摘要

In this paper, recent study on dryout of CO2 during flow boiling heat transfer process is described including the effect of heat flux, mass flow, saturation temperature and diameter of tube, as well as the generation mechanism of dryout phenomenon. Study of critical heat flux, transform of flow type, prediction of dryout vapor quality and measures to suppress dryout occur will become the focus in the future.%针对CO2在亚临界管内流动沸腾换热过程中所表现出来的干涸现象研究进展进行了综述,描述了在CO2沸腾换热过程中的干涸现象及其产生的影响因素,分析了热流密度、质量流量、饱和温度、管径等因素对干涸产生的影响及机理.提出CO2流动沸腾换热过程中临界热流密度,流态变化,干涸干度的预测以及抑制干涸提前发生的相应措施是今后研究的方向.