| 析湿工况下波纹翅片管换热器空气侧换热与压降特性 |
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| 引用本文： | 刘金平,戴绍碧,叶立平. 析湿工况下波纹翅片管换热器空气侧换热与压降特性[J]. 化工学报, 2009, 60(10): 2438-2445 |
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| 作者姓名： | 刘金平 戴绍碧 叶立平 |
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| 作者单位： | 华南理工大学电力学院,广东,广州,510640;华南理工大学电力学院,广东,广州,510640;华南理工大学电力学院,广东,广州,510640 |
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| 基金项目： | 国家科技支撑计划重大项目，2007年粤港关键领域重点突破项目 |
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| 摘 要： | 研究了析湿工况下1、2排波纹翅片管换热器空气侧换热与压降特性，结果表明：管排数对空气侧换热特性的影响明显，2排管的换热因子要比1排管的换热因子大约60%，而管排数对空气侧摩擦因数影响则不明显;翅片效率随冷水入口温度的降低而增加，随入口风速的增加而快速降低;与其他学者的预测模型相比，换热因子偏小30％。
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| 关 键 词： | 波纹翅片 析湿工况 换热器 压降 翅片效率 |
| 收稿时间： | 2009-03-18 |
| 修稿时间： | 2009-6-25 |
Air-side heat transfer and friction characteristics of wavy fin-and-tube heat exchangers under dehumidifying conditions |
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| LIU Jinping,DAI Shaobi,YE Liping. Air-side heat transfer and friction characteristics of wavy fin-and-tube heat exchangers under dehumidifying conditions[J]. Journal of Chemical Industry and Engineering(China), 2009, 60(10): 2438-2445 |
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| Authors: | LIU Jinping DAI Shaobi YE Liping |
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| Abstract: | The air-side heat transfer and friction characteristics of one-row and two-row wavy fin-and-tube heat exchanger under dehumidifying condition were studied experimentally.The results showed that the heat transfer factor was strongly related to the number of rows, and the heat transfer factor of two row heat exchanger was 60% greater than that of one row one.The effect of the number of rows on the friction factors could be negligible.Fin efficiency increased as inlet water temperature decreased, while it decreased as wind velocity increased.The experimental value of heat transfer factor was 30% lower than that predicted by the Pirompugd correlation . |
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| Keywords: | wavy fin dehumidifying conditions heat exchanger pressure drop fin efficiency |
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