Abstract: This paper presented a new heat transfer surface——nanotube array surface using Tias the base material and water as the working substance. The experimental study on enhanced heat transfer performances of this new heat transfer surface in boiling pool was investigated. The results showed that under the same conditions, the initial boiling point can be lowered with this new surface, resulting in increased heat transfer coefficient and decreased temperature difference. The maximum heat transfer coefficient could be as high as 136% of the regular Ti heat transfer surface under this experiment conditions.

Key words: TiO2, nanotube, heat transfer enhancement, pool boiling

摘要： 以水为工质，对一种以Ti为基底的新型传热表面——纳米管阵列表面进行了池沸腾强化传热性能研究。研究结果表明：相同加热条件下，该表面可以降低沸腾起始点，并在降低传热温差的同时，起到提高传热系数的效果，实验条件下沸腾换热系数最大可增加136%。

关键词: 二氧化钛, 纳米管, 强化传热, 池沸腾