Experimental study of frosting on wavy plate

MA Qiang; WU Xiaomin; ZHU Bei

doi:10.11949/j.issn.0438-1157.20170630

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Experimental study of frosting on wavy plate

更新时间：2025-12-10

- Experimental study of frosting on wavy plate
- CIESC Journal Issue S1, Pages: 191-195(2017)
- 作者机构：
  
  清华大学热能工程系, 热科学与动力工程教育部重点实验室, 北京市CO
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170630
  CLC： K123
- Online First：31 August 2017，
  
  Published：31 August 2017
- 稿件说明：
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MA Qiang, WU Xiaomin, ZHU Bei. Experimental study of frosting on wavy plate[J]. CIESC Journal, 2017, (S1): 191-195.
DOI：

MA Qiang, WU Xiaomin, ZHU Bei. Experimental study of frosting on wavy plate[J]. CIESC Journal, 2017, (S1): 191-195. DOI： 10.11949/j.issn.0438-1157.20170630.

摘要

结霜工况下，换热器翅片表面结霜会增大换热热阻，堵塞空气流道。在低温高湿条件下对波纹表面的结霜过程进行了实验研究，分析了冷面温度、湿空气流速及波纹结构等因素对波纹表面冷凝水珠冻结和霜层生长的影响。结果表明：冷面温度越低，冻结的冷凝水珠越小，冻结时间也越短；冷面温度越低或湿空气流速越快，霜层生长越快；在相同的实验条件下，波纹表面上霜层的高度比平直表面的低。

Abstract

For heat exchangers operating with low air temperature and high humidity

frost appears on the fin surfaces

which increases the thermal resistance and blocks the air channels. Frosting process on a wavy plate was experimentally investigated. This study focuses on several factors affecting the condensate water droplets freezing process and frost layer growth process

i.e. the cooling surface temperature

the air velocity and the plate structure. The results show that the condensate droplets are smaller and freeze earlier with lower cooling surface temperature. The frost layer grows faster with lower cooling surface temperature and higher air velocity. Compared with flat plates

frost height growth on wavy plates is much slower.

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