期刊
EXPERIMENTAL HEAT TRANSFER
卷 36, 期 4, 页码 528-547出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/08916152.2022.2055226
关键词
Heat transfer; reentrant cavity; R-134a; R-32; R-600a
Nucleated pool boiling heat transfer experiments were conducted on plain and five different reentrant cavity copper tube surfaces using saturated R134a, R32, and R600a. It was found that the boiling heat transfer coefficient significantly increased with the presence of the reentrant cavity structure, being 1.2-2.8 times higher than that of the plain tube surfaces. A correlation for the reentrant cavity surfaces was also developed.
The nucleated pool boiling heat transfer experiments for plain and five different reentrant cavity copper tube surfaces in saturated R134a, R32, and R600a have been carried out. The experiments are carried for heat fluxes ranging from 6.92 to 51.71 kW/m(2) at saturation temperatures of 7 degrees C and 10 degrees C. A significant increase in the boiling heat transfer coefficient has been observed for all tube surfaces with the reentrant cavity. The nucleate boiling heat transfer coefficient for R134a, R32, and R600a is 1.2-2.8 times more than that for plain tube surfaces. A correlation for reentrant cavity surfaces has also been developed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据