HC600a含油混合物水平微肋管内冷凝换热特性试验

An Experimental Investigation of Condensation Heat Transfer of HC600a-Oil Mixture in a Horizontal Micro-fin Tube

实验研究了环保替代制冷工质HC6 0 0a和润滑油Suniso 3GS的混合物在水平微肋管内的冷凝换热特性 ,探索了含油率、饱和压力和质量流量对冷凝换热的影响。根据实验结果拟合的冷凝换热关系式较好地反映了该工质的换热特性。通过与其它工质的比较 ,可以得出结论 :制冷工质HC6 0 0不但对臭氧层无破坏作用 ,而且传热特性优于CFC12及HCFC134a 。

Experimental study of condensation heat transfer of HC600a-oil mixture in a horizontal micro fin tube is performed to investigate the inflence of oil percentage, saturated pressure and mass flux on condensation heat transfer.The empirical correlation according to this study is well correlated by the experimental data. By comparing with other refrigerants, HC600a has no inflence on ozone depletion and better heat transfer characteristcs than CFC12 and HCFC134a. It is a promising substitute for CFC12.