关键词: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">表面多孔管, 高通量, 换热管, 传热性能, 内烧结, 外开槽, 总传热系数, 热流密度

Abstract: Compared with conventional heat exchanger tubes, the heat exchanger tubes with external slotting and internal sintering porous surfaces can significantly enhance boiling heat transfer, reduce the required heat transfer area, and have better scale inhibition effect. At present, there is a lack of empirical formulas for parameters such as heat transfer coefficients under multi-medium and multi-working conditions in domestic technologies. In this paper, the heat transfer coefficients of conventional heat exchanger tubes and this type of porous heat exchanger tubes are measured, and the empirical relationship between heat transfer coefficient and heat flux is summarized. The experiment is simulated by ANSYS, and the results are consistent with the experimental data. The model, meshing, and loading and solution obtaining processes are basically suitable for the experimental data of heat exchanger tubes under the experimental conditions, and the correctness of the experimental and computational results has been verified.

Key words: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">porous surface tube, high flux, heat exchanger tube, heat transfer performance, internal sintering, external slotting, total heat transfer coefficient, heat flux