Airside heat and mass transfer characteristics of split fin-and-tube heat exchangers under dehumidifying conditions

MA Xiaokui; DING Guoliang; ZHANG Yuanming

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Airside heat and mass transfer characteristics of split fin-and-tube heat exchangers under dehumidifying conditions

更新时间：2025-12-10

- Airside heat and mass transfer characteristics of split fin-and-tube heat exchangers under dehumidifying conditions
- CIESC Journal Issue 8, Pages: 1911-1916(2007)
- 作者机构：
  
  上海交通大学制冷与低温工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 August 2007，
  
  Published：05 August 2007
- 稿件说明：
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MA Xiaokui, DING Guoliang, ZHANG Yuanming. Airside heat and mass transfer characteristics of split fin-and-tube heat exchangers under dehumidifying conditions[J]. CIESC Journal, 2007, (8): 1911-1916.
DOI：

MA Xiaokui, DING Guoliang, ZHANG Yuanming. Airside heat and mass transfer characteristics of split fin-and-tube heat exchangers under dehumidifying conditions[J]. CIESC Journal, 2007, (8): 1911-1916. DOI：

摘要

对7个带亲水层开缝型翅片管换热器在析湿工况下空气侧传热传质特性进行了实验研究，分析了翅片间距和入口相对湿度对空气侧传热传质特性的影响。结果表明，随着翅片间距的增加，空气侧的传热传质特性均逐渐减弱。入口相对湿度对空气侧的传热特性几乎没有影响。随着入口相对湿度的增加，空气侧的传质特性逐渐减弱。开发了反映空气侧传热特性的Colburn传热因子Jh和反映传质特性的Colburn传质因子Jm的关联式，所开发关联式在±15%误差范围内分别能涵盖96.6%和81.4%的实验数据，其平均误差分别为5.3%和8.5%。

Abstract

The airside heat and mass transfer characteristics of seven split fin-and-tube heat exchangers with hydrophilic coating were studied under dehumidifying conditions experimentally. The effects of fin pitch and inlet relative humidity on airside heat and mass transfer performance were investigated. The results indicated that the heat and mass transfer performance decreased with the increase of fin pitch. The heat transfer performance was insensitive to the change of inlet relative humidity

and the mass transfer became weaker with the rise of inlet relative humidity. Correlations were proposed to describe the heat and mass transfer characteristics. The Colburn heat transfer factors Jh correlation could describe 96.6% of experimental data and the Colburn mass transfer factors Jm correlation could describe 81.4% of experimental data with an error of ±15%.Correspondingly

the mean deviations of the proposed heat and mass transfer correlation were 5.3% and 8.5%

respectively.

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