Abstract: In recent years,ice slurry characteristics were studied by many domestic and foreign researchers.But mostly studies were concentrated on designing ice slurry generator device,researching the characteristics of ice slurry flow in pipe and heat transfer characteristics.However,few researchers paid more atttention on discussing the mechanism of ice crystal particles generated on the wall and crystallization process.It is taken in this paper that experimental study on water and different concentration sodium chloride solution solidification property on different material surface.Setting up the device of the solidification performance of multi component solution surface,and put the measuring point in the device.The experiment tests are taking on different concentration of sodium chloride solution and recording the solidification temperature and time on the different roughness of copper,aluminum and plastic plate surface respectively,and it is analyzed that different surface roughness,different materials and the concentration of sodium chloride are effect on solution into nuclear energy.Based on experimental data analysis,it is concluded the relationship between the solidification beginning temperature and surface roughness,and the relationship between the solidification time and variations of sub-cooling temperature.It is gained that the solidification beginning temperature is rising with the increasing of surface roughness.The solidification time is reducing with the increasing of sub-cooling temperature.

Key words: sodium chloride solution, flat surface, crystallization, roughness, sub-cooling temperature

摘要： 近几年国内外学者对冰浆的各种特性进行了大量研究，但大多都集中在冰浆生成器的装置设计、冰浆在管道中的流动及传热特性，很少有从冰晶颗粒在壁面生成及结晶过程的机理进行研究讨论。本文对纯水和不同浓度氯化钠溶液在不同材料表面的凝固特性进行了实验研究，搭建了多组分溶液表面凝固性能研究装置，并对装置布置测点同时可更换测试表面。实验采取不同浓度的氯化钠溶液，分别记录在粗糙度不同的铜板、铝板以及塑料板表面凝固时的温度、时间，分析不同表面粗糙度、不同材质以及氯化钠浓度对溶液成核能的影响。通过对实验数据的分析和处理分别得出开始凝固温度与粗糙度的变化关系以及凝固时间与过冷度的变化关系。实验结果表明：溶液在平板表面凝固的初始温度会随着粗糙度的增大而逐渐升高。溶液在平板表面凝固的凝固时间会随着过冷度的增大而逐渐降低。

关键词: 氯化钠溶液, 平板表面, 结晶, 粗糙度, 过冷度