蒸发器表面改性疏水性和抗冻性的实验研究

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science-medziagotyra Pub Date : 2023-02-13 DOI:10.5755/j02.ms.30986

Xingyuan Liang, Lijun Wu, Zeng Wei

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引用次数: 0

摘要

蒸发器表面积霜导致制冷剂与环境介质之间的传热阻力增大，降低了冷库和空气源热泵的系统性能。为了解决这个问题，表面改性蒸发器可以实现延缓结霜，极大地提高了制冷剂与外部环境之间的热交换效果。本文采用溶胶-凝胶法在蒸发器上喷涂了一种新型涂层，并对其疏水性、耐久性和导热性进行了研究。此外，还首次提出了一种在不同温度和湿度下测量霜重的改进方法。结果表明，该涂层具有良好的疏水性和导热性，使用寿命长。在标准试验条件下，涂层表面的霜重可降低26.1%。此外，还进一步研究了涂层组成比对其性能的影响。综上所述，这种新型涂料具有工业化应用的潜力。

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 Investigation on Evaporator Surface Modification for Hydrophobicity and Frost Resistance

Frost accumulated on the surface of the evaporator leads to the increase of heat transfer resistance between the refrigerant and environmental medium, which reduces the system performance of cold storage and air source heat pump. To solve this problem, the surface-modified evaporator can achieve retardation of the frost formation, which greatly improves the heat exchange effect between the refrigerant and the external environment. In this paper, a novel coating sprayed on the evaporator was developed using the sol-gel method and the hydrophobicity, durability, and thermal conductivity were investigated. Moreover, a modified method of frost weight measurement under different temperatures and humidity was first proposed. The results showed that the coating has a favorable hydrophobic effect and thermal conductivity, and long service life. Under the standard experimental condition, the frost weight on the coating surface can be reduced up to 26.1 %. Additionally, the effect of coating composition ratio on its performance was further investigated. To sum up, this new coating has the potential for industrialized application.

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来源期刊

Materials Science-medziagotyra 工程技术-材料科学：综合

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： It covers the fields of materials science concerning with the traditional engineering materials as well as advanced materials and technologies aiming at the implementation and industry applications. The variety of materials under consideration, contributes to the cooperation of scientists working in applied physics, chemistry, materials science and different fields of engineering.