Scaling analysis for convective heat transfer in tube at supercritical pressure

Based on the experimental database of convective heat transfer in tube at supercritical pressure, different scaling laws for supercritical heat transfer were studied. A modified Cheng et al.'s scaling law was proposed and validated via experimental data. The results show that the modified Cheng et al.'s scaling law has a higher degree of accuracy, while adopting the exponents of Zhou Qiangtai's correlation and average properties in Prandtl number, and heat transfer scalings of different supercritical fluids agree well.