2023年 02期

摘要(Abstract)：

采用直流电源加热不锈钢管的方式，设置热流密度为31～73 kW/m~2,质量流速为248～460 kg/(m~2·s),研究工质R152a于高蒸发温度为60～80℃时在水平管内的流动沸腾传热特性，并将实验结果与文献报道的3个传热关联式的预测值进行比较。结果表明：工质R152a的流动沸腾传热系数随着蒸发温度的升高而减小，随着干度的变化呈现先减小后增大再减小的趋势，质量流速的变化对流动沸腾传热系数的影响较小；3个传热关联式的预测值与实验值的平均绝对偏差均偏大。

关键词(KeyWords)： 工质;沸腾传热;蒸发温度;传热关联式

基金项目(Foundation): 国家自然科学基金项目(51736005,51876043)

作者(Author): 黄计康,罗向龙,夏扬凯

DOI: 10.13349/j.cnki.jdxbn.20221129.001

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