预设冰条阵列用于降低覆霜率的机理研究

Suppressing Frost Coverage Using Ice Strips Patterned Substrates

结冰结霜是生产生活的常见现象,但是对诸如航空航天和暖通制冷等相关应用造成负面影响。近年来已经开发了大量抑除霜方法,然而大部分会受限于资源投入或使用场合。本研究提出了一种“以冰抑冰”的方法,即通过预设冰条阵列抑制界面整体的霜层生长。结果表明,冰条阵列可以实现良好的抑霜效果,并进一步通过对比不同间距冰条阵列的结霜动力学行为讨论了其抑霜发生机理。本研究为抑霜策略和技术提供了成本低、易操作的新思路。

Icing and frosting occurs ubiquitously in industries and our daily life, while mostly inducing negative impacts in applications such as aviation and HVAC&R systems. Numerous defrosting and anti-frosting methods have been developed in recent decades, however, their applications are limited due to intensive resource consumption or harsh working conditions. This study presents a method of “fight ice with ice”, meaning that the growth of frost layer can be suppressed by aligned ice strips. Our results show that the surface patterned with ice strips achieves good anti-frosting performance, and the frosting mechanism is discussed through comparing the frosting phenomena of ice strip patterned surface with varying pitches. This study provides a new solution of low-cost and easy-to-operate for anti-frosting technology and strategy.