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首页> 外文期刊>International Journal of Heat and Mass Transfer >Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter
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Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter

机译：R-134a在水平管中沸腾传热的相关性，包括管径的影响

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摘要

A Chen-type correlation for flow boiling heat transfer of R-134a in horizontal tubes was modified taking into account the effect of tube diameter. The effect of tube diameter on flow boiling heat transfer coefficient was characterized by the Weber number in gas phase. Results showed that this correlation could be applied to a wide range of tube diameters (0.5-11-mm-ID). In addition, the dryout point and the heat transfer characteristics after the dryout point were also investigated based on the annular flow model. The proposed experimental expressions to predict both the dryout quality and the post-dryout heat transfer coefficient could also be applied to a wide range of tube diameter (0.5-11-mm-ID).
机译：考虑到管径的影响，修改了水平管中R-134a的沸腾传热的Chen型相关性。通过气相中的韦伯数来表征管直径对流沸腾传热系数的影响。结果表明，这种相关性可以应用于各种直径的管（0.5-11-mm-ID）。此外，还基于环形流动模型研究了干燥点和干燥点之后的传热特性。所提出的用于预测干燥质量和干燥后传热系数的实验表达式也可应用于宽范围的管径（0.5-11-mm-ID）。

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