Frosting characteristics on silver iodide (AgI) micro patterned surface under various temperature conditions

IF 5.8 2区工程技术 Q1 ENGINEERING, MECHANICAL International Journal of Heat and Mass Transfer Pub Date : 2025-06-01 Epub Date: 2025-02-16 DOI:10.1016/j.ijheatmasstransfer.2025.126826

Jinchen Tang, Takao Okabe, Katsuhiko Nishimura, Anna Sciazko, Naoki Shikazono

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Abstract

This study investigates frost growths on a silver iodide (AgI) patterned surface fabricated by a UV-lithography method under various temperature conditions. Effects of surface temperature and AgI micropatterns under both desublimation condition (ambient temperature of 4.5 ± 1 °C and relative humidity of 37 ± 2 %) and condensation frosting condition (ambient temperature of 23.9 ± 2 °C and relative humidity of 25 ± 5 %) are investigated. In addition, characteristic parameters of frost growth such as frost coverage ratio and frost growth rate are analyzed. Results show that frost on AgI micropattern exhibits very different frost shape compared to that on a bare surface. Planer ice crystals form on the AgI micropatterns, which grow horizontally and remain unchanged for 150 min. This study demonstrates that AgI patterns can effectively suppress frost height by promoting horizontal crystal growth, which may provide new insights to control frost local microstructure such as density and tortuosity.

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不同温度条件下碘化银微图案化表面的结霜特性

本文研究了用紫外光刻法制备的碘化银（AgI）图案表面在不同温度条件下的结霜生长情况。研究了脱盐条件（环境温度为4.5±1℃，相对湿度为37±2%）和凝结结霜条件（环境温度为23.9±2℃，相对湿度为25±5%）下表面温度和AgI微图的影响。此外，还分析了霜盖度、霜生长速率等霜冻生长特征参数。结果表明，AgI微晶图案上的霜与裸露表面上的霜形态有很大不同。在AgI微晶图上形成扁平冰晶，水平生长并保持150 min不变。本研究表明，AgI微晶图可以通过促进水平晶体生长来有效抑制霜高，这可能为控制霜局部微观结构（如密度和扭曲度）提供新的见解。

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来源期刊

International Journal of Heat and Mass Transfer 工程技术-工程：机械

CiteScore

10.30

自引率

13.50%

发文量

1319

审稿时长

41 days

期刊介绍： International Journal of Heat and Mass Transfer is the vehicle for the exchange of basic ideas in heat and mass transfer between research workers and engineers throughout the world. It focuses on both analytical and experimental research, with an emphasis on contributions which increase the basic understanding of transfer processes and their application to engineering problems. Topics include: -New methods of measuring and/or correlating transport-property data -Energy engineering -Environmental applications of heat and/or mass transfer