Heat transfer of ternary mixtures inside enhanced surface tubing

被引:4
作者
Sami, SM [1 ]
Desjardins, DE [1 ]
机构
[1] Univ Moncton, Sch Engn, Moncton, NB E1A 3E9, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1016/S0735-1933(00)00166-4
中图分类号
O414.1 [热力学];
学科分类号
摘要
Two phase flow heat transfer parameters such as coefficient of heat transfer and pressure drop observed during condensation of ternary azeotropic refrigerant mixtures R-404A (R125/R134a/R143a:44/4/52), R-407B (R32/R125/R134a:10/70/20), R407C (R32/R125/R134a:23/25/52) and R408A (R22/R125/R143a:46/7/47) are presented in this paper. Experiments showed that for Reynolds numbers higher than 3.00 E06, R-408A appears to have greater heat transfer rates than the other blends under investigation. Furthermore, it is quite evident from this data that R-407C has the highest pressure drop among the refrigerants under investigation. (C) 2000 Elsevier Science Ltd.
引用
收藏
页码:855 / 864
页数:10
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