关键词: 二氧化钛, 纳米管, 强化传热, 池沸腾

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