Experimental study on the effect of uneven temperature distribution of horizontal cold surface on 3D ice transparency in vertical ice-making process

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-05-27 DOI:10.1016/j.ijrefrig.2025.05.024

Zekang Zhen , Mengjie Song , Xiaowei Zhu , Xiaoye Dai , Xuan Zhang , Long Zhang

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引用次数: 0

Abstract

Clear ice has been widely used in food preservation and ice sculpture fields due to its excellent transparency. Temperature is a key factor affecting transparency in the process of ice production. To understand and clarify the effect of uneven temperature distribution on ice transparency, three-dimensional ice vertically freezing experiments are carried out under different temperature control strategies. Under even cold source surface temperature distribution, the transparency of the ice body is found negatively correlated with the freezing rate. When the freezing rate increased from 0.57 to 0.70 cm/h, the transparency decreased from 48.41 % to 16.04 %. Under the condition of temperature unevenness, the transparency of the ice body had no obvious correlation with the freezing rate. The larger the temperature difference of the cold surface, the more uneven the temperature distribution, which corresponds to the lower transparency of the ice slices. The transparency of the ice slices is 30.76 % and 12.42 % when the temperature unevenness of the cold surface is 0.22 °C and 2.36 °C, respectively. The results of this study are expected to provide a reference for the optimization of the ice-making process and cold energy storage technology.

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垂直制冰过程中水平冷面温度分布不均对三维冰透明度影响的实验研究

透明冰由于其优异的透明度，在食品保鲜和冰雕领域得到了广泛的应用。在制冰过程中，温度是影响透明度的关键因素。为了解和阐明温度分布不均匀对冰透明度的影响，开展了不同温度控制策略下的三维冰垂直冻结实验。在均匀冷源表面温度分布下，冰体透明度与冻结速率呈负相关。当冻结速率从0.57 cm/h增加到0.70 cm/h时，透明度从48.41%下降到16.04%。在温度不均匀的条件下，冰体的透明度与冻结速率没有明显的相关性。冷面温差越大，温度分布越不均匀，对应的是冰片的透明度越低。当冷面温度不均匀度为0.22℃和2.36℃时，薄片的透明度分别为30.76%和12.42%。研究结果有望为制冰工艺和冷储能技术的优化提供参考。

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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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.