管内流动沸腾传热关系式对R410A的适应性研究

R410A作为一种替代制冷剂,已经大量用在工业生产中。R410A制冷系统的设计和研发需要进行R410A管内流动沸腾换热计算。目前有很多公式预测两相流流动沸腾换热系数,它们对R410A的适应性需要判断。本文从10篇论文中收集了1268组R410A流动沸腾传热实验数据,用这些数据对27个两相流流动沸腾换热关系式进行了评价,选出了较为精确的R410A管内流动沸腾换热关系式,为R410A管内流动沸腾换热计算的公式选择提供了依据,为提出精确度更高的R410A管内流动沸腾公式提供了参考。

Applicability of Correlations of Flow Boiling Heat Transfer to R410A

As an alternative refrigerant,R410 A has been widely used in industries. The determination of R410 A flow boiling heat transfer in channels is needed in the design and development of a refrigeration system using R410 A as the refrigerant. There are a lot of correlations for predicting the coefficient of flow boiling heat transfer. However,their applicability to R410 A needs to be assessed. This paper has compiled a database of R410 A flow boiling heat transfer containing 1268 experimental data points from 10 open papers,based on which 27 correlations of flow boiling heat transfer are evaluated. The work provides a guide for choosing a proper correlation for calculating R410 A flow boiling heat transfer and for developing more accurate correlations of R410 A flow boiling heat transfer.