静磁场下去离子水和 0.9 % 氯化钠溶液单冰晶生长的实验和数值研究

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2024-09-11 DOI:10.1016/j.ijrefrig.2024.09.005

Dongmei Leng , Peiru Li , Fanchen Kong , Hainan Zhang , Tianyang Yang , Mingsheng Tang , Huiming Zou , Changqing Tian

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引用次数: 0

摘要

水及其水溶液的冰晶生长是食品冷冻的关键现象。本研究结合实验和模拟，探讨了静态磁场（SMF）对单个冰晶生长的影响。研究了水和 NaCl-水溶液在 0 - 15 mT 的静磁场强度下的冰晶生长情况。测量了经 SMF 处理后水的紫外吸收率。采用相场模型模拟冰晶生长。结果表明，SMF 能明显抑制冰晶的生长速度，但对冰晶的形态和生长方向影响不大。SMF 对去离子水的紫外线吸收率有一定的增强作用。所提出的模型可以很好地模拟不同 SMF 强度下的冰晶生长。结合实验和模拟结果，可以推断 SMF 是通过增强原始氢键和降低自由能来抑制冰晶生长的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental and numerical study on single ice crystal growth of deionized water and 0.9 % NaCl solution under static magnetic field

Ice crystal growth of water and its aqueous solution is the key phenomenon in food freezing. In this research, the effect of static magnetic field (SMF) on single ice crystal growth was investigated combing experiment and simulation. The ice crystal growth of water and NaCl-water solution under 0 - 15 mT SMF intensities were studied. The UV absorbance of water after SMF treatment was measured. Phase field model was adopted to simulate the ice crystal growth. The results show that SMF significantly inhibited the growth rate, while had little effect on the morphology and growth direction of ice crystals. SMF had a certain enhancement effect on the UV absorbance of deionized water. The proposed model could well simulate the ice crystal growth under different SMF intensities. Combining experimental and simulation results, it can be inferred that SMF inhibits ice crystal growth by enhancing original hydrogen bonds and reducing free energy.

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.