• CN:11-2187/TH
  • ISSN:0577-6686

›› 2008, Vol. 44 ›› Issue (8): 152-156.

• 论文 • 上一篇    下一篇

带亲水层波纹翅片管换热器析湿工况空气侧换热与压降关联式

马小魁;丁国良;张圆明   

  1. 上海交通大学机械与动力工程学院
  • 发布日期:2008-08-15

Airside Correlations Development of Heat Transfer and Friction Performance for Corrugated Fin-and-tube Heat Exchangers with Hydrophilic Coating Wet Conditions

MA Xiaokui;DING Guoliang;ZHANG Yuanming   

  1. School of Mechanical Engineering, Shanghai Jiaotong University
  • Published:2008-08-15

摘要: 为得到带亲水层波纹翅片的换热器在析湿工况下空气侧的换热和压降关联式,对7个带亲水层波纹翅片管换热器在23个工况下进行了试验研究。根据试验数据,运用多元线形回归方法拟合得到了带亲水层波纹翅片管换热器析湿工况下空气侧的换热和压降关联式。所拟合的换热和压降关联式平均误差分别为6.5%和9.1%,在±15%误差范围内分别能涵盖90.3%和79.2%的试验数据。将新开发的关联式与目前已有的4个换热与压降关联式进行了对比分析,结果表明新的关联式精度明显好于已有的关联式。

关键词: 波纹翅片, 关联式, 换热, 亲水层, 压降

Abstract: In order to get the airside heat transfer and pressure drop correlations of corrugated fin-and-tube heat exchangers with hydrophilic coating under wet conditions, experiments on 7 heat exchangers under 23 working conditions are done. The experimental data are used to develop the correlations for heat transfer and pressure drop with the multiple linear regression technique. The proposed heat transfer correlation has a mean deviation of 6.5% from experimental data and can predict 90.3% of the experimental data within the deviation limit of ±15% while the pressure drop correlation has a mean deviation of 9.1% and can correlate 79.2% of the test data within the deviation limit of ±15%. The accuracy of the new correlations is better than that of the existing correlations.

Key words: Correlations, Corrugated fin, Heat transfer, Hydrophilic coating, Pressure drop

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