平行流微通道换热器结霜研究综述

doi:10.19784/j.cnki.issn1672-0172.2022.05.010

摘要/Abstract

摘要： 在双碳目标和铝代铜的趋势下,平行流微通道换热器应用于小型制冷系统已成为研究热点。针对微通道蒸发器存在的结霜问题展开综述,首先对传统水平翅片结构及其改进方案进行介绍,特别叙述针对结霜工况设计的竖插翅片微通道结构;然后分析微通道换热器结霜的仿真模型,并从微通道替代翅片管换热器、环境工况、结构参数、表面涂层的影响四个角度归纳现有的实验研究。为在产品中推广应用,未来仍需在结构上优化创新、研发有效的延霜涂层、应用其他抑霜技术,同时开发高精度的微通道结霜模型,制定完整的微通道换热器设计流程。

关键词: 平行流, 微通道换热器, 结霜, 水平翅片, 竖插翅片

Abstract: For carbon peaking and carbon neutrality goals, the parallel-flow microchannel heat exchanger applied to small refrigeration system has become a research hotspot, which is a favorable substitution of the original copper heat exchanger. Review on frosting of the microchannel heat exchanger. Firstly, the conventional horizontal-fin configuration and some improvement schemes are introduced. In particular, the vertical-fin microchannel heat exchanger designed for the frosting condition is described. Then, numerical frosting models for the microchannel heat exchanger are analyzed, and the existing experimental researches are summarized from four aspects, i.e., substitution of the fin-tube heat exchanger, effects of environmental conditions, structural parameters and surface coating. For the popularization and application in products, it is necessary to optimize and innovate in structure, develop effective coating to retard frosting, and employ other anti-frosting technologies in the future. Meanwhile, it is also essential to develop an accurate frosting model as well as a complete design process for the microchannel heat exchanger.

Key words: Parallel flow, Microchannel heat exchanger, Frosting, Horizontal fin, Vertical fin

中图分类号:

TM925.21

赵日晶, 马志恒, 王守振, 黄东, 赵永峰. 平行流微通道换热器结霜研究综述[J]. 家电科技, 2022, 0(5): 62-70.

ZHAO Rijing, MA Zhiheng, WANG Shouzhen, HUANG Dong, ZHAO Yongfeng. Review on frosting of parallel-flow microchannel heat exchangers[J]. Journal of Appliance Science & Technology, 2022, 0(5): 62-70.

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