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对乙烷、丙烷纯质及三种不同浓度比例的乙烷/丙烷二元混合物在内径为8mm的水平管内进行了饱和流动沸腾传热特性的实验研究,重点分析了热流密度、质量流量的变化对二元混合工质传热系数的影响。选用了4种专用于计算混合物流动换热的关联式,并与实验数据进行了比较,其中Gungor-Winterton and Thome关联式和Zou关联式的预测偏差相对较小,且计算过程较为简单,较适合用于该工况范围的混合工质传热预测。
Experimental studies on the saturated flow boiling heat transfer characteristics of ethane / propane and three kinds of ethane / propane binary mixtures with different concentrations were carried out in a horizontal tube with an inner diameter of 8 mm. The changes of heat flux and mass flow were analyzed emphatically Effect of Heat Transfer Coefficient on Binary Mixture. Four correlations were selected to calculate the heat transfer of the mixture and compared with the experimental data. The prediction errors of the Gungor-Winterton and Thome correlations and the Zou correlations are relatively small, and the calculation process is relatively simple and suitable Heat Transfer Prediction of Mixed Refrigerants Used in the Operating Range.