Active control of supercooling degree using surfactant (In system with solid-liquid interface)
Active control of supercooling degree using surfactant (In system with solid-liquid interface)
复制标题
使用表面活性剂主动控制过冷度（在具有固液界面的系统中）
DOI：
10.1016/j.ijrefrig.2015.05.010
复制
发表时间：
2015
影响因子：
3.9
通讯作者：
Kazuyuki Minamiya
中科院分区：
文献类型：
--
作者：
Koji Matsumoto;Daisuke Shirai;Yuta Furudate;Daisuke Tsubaki,Hiroyuki Kubota;Koki Sekine; Kazuyuki Minamiya
过冷降低了制冰系统的COP。因此，控制过冷溶解是有用的，并且将带来许多益处。在之前的报告中，作者在具有液-气（空气）界面的玻璃试管中进行了一项实验，以控制亲水性表面活性剂和水的混合物的过冷溶解，并且可以主动控制平均过冷度通过改变表面活性剂浓度。在临界胶束浓度以下和临界胶束浓度以上，根据表面张力的变化计算的平均过冷度的趋势有很大的不同。然而，由于临界胶束浓度是一个物理量，只涉及液-气界面，它是必要的，以研究在一个系统中的固-液界面的现象。因此，在注射器与系统只有一个固-液界面，平均过冷度的主动控制的可能性，通过表面活性剂浓度的变化进行了研究。
Supercooling reduces the COP of ice formation systems. So, control of supercooling dissolution is useful and would bring numerous benefits. In a previous report, the authors conducted an experiment to control supercooling dissolution in a mixture with a hydrophilic surfactant and water in a glass test tube which had the liquid–gas(air) interface, and it was possible to actively control average supercooling degree by varying the surfactant concentrations. The average supercooling degrees' tendencies below and over a critical micelle concentration, calculated based on the variation in surface tensions, were quite different. However, since the critical micelle concentration is a physical quantity concerned only with liquid–gas interface, it is essential to investigate phenomena in a system with a solid–liquid interface. So, in a syringe with a system having only a solid–liquid interface, possibility of active control of average supercooling degree by variation in surfactant concentrations is investigated.