空气相对湿度对板式蒸发冷凝器传热性能影响的实验研究

doi:10.3969/j.issn.1000-7229.2015.03.016

电力建设 ›› 2015, Vol. 36 ›› Issue (3): 94-98.doi: 10.3969/j.issn.1000-7229.2015.03.016

空气相对湿度对板式蒸发冷凝器传热性能影响的实验研究

简弃非1,戴晨影1,任勤1,张勇2

1.华南理工大学机械与汽车工程学院,广州市 510640；2.广州市华德工业有限公司,广州市 510663

出版日期:2015-03-01
作者简介:简弃非（1963），男，博士生导师，研究方向为制冷与空调技术；戴晨影（1989），女，硕士研究生，研究方向为制冷与空调技术；任勤（1988），女，硕士研究生，研究方向为制冷与空调技术；张勇（1980），男，工程师，研究方向为空调制冷。

Experimental Study on Effect of Inlet-Air Relative Humidity on Heat Transfer Performance of Plate-Type Evaporative Condenser

JIAN Qifei1, DAI Chenying1, REN Qin1, ZHANG Yong2

1. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China; 2.

Guangzhou Huade Industrial Co., Ltd., Guangzhou 510663, China

Online:2015-03-01

摘要/Abstract

摘要：

为了研究空气湿度对蒸发式冷凝器传热性能的影响，建立了蒸发式冷凝器板外水膜传热性能实验平台。在其他条件不变的情况下，调节空气湿度参数，测试了空气湿度对喷淋水温度、板片表面水膜及填料表面上、下温度等参数的影响。实验结果表明，当进入板片间的空气相对湿度从85%增至90%，水膜温度呈增加趋势，不同位置水膜温度有明显差别，喷淋水的换热量增加，湿空气的换热量减少，板片的平均热流密度和传热系数均随着相对湿度的增加而变小。

关键词: 板式蒸发冷凝器, 相对湿度, 传热性能, 实验研究

Abstract:

To study the effect of the relative humidity of air on heat transfer performance, a heat transfer performance test of water film based on evaporative condenser was carried out. The cooling water temperature, the water film temperature of plates and the temperature above and below the surface of filler were investigated by test equipments under the condition that the relative humidity of air was adjusted, and other parameters remained the same. The results show that the temperature of water film increases when the relative humidity of the air between plates increases from 85% to 90%. The temperature of water film at different position is obviously different. With the increase of humidity, the heat transfer mass of spray water increases, while the heat transfer mass of wet air, the average heat flux and surface heat transfer coefficient of plate decreases.

Key words: plate-type evaporative condenser, relative humidity, heat transfer performance, experimental investigation

简弃非,戴晨影,任勤,张勇. 空气相对湿度对板式蒸发冷凝器传热性能影响的实验研究[J]. 电力建设, 2015, 36(3): 94-98.

JIAN Qifei, DAI Chenying, REN Qin, ZHANG Yong. Experimental Study on Effect of Inlet-Air Relative Humidity on Heat Transfer Performance of Plate-Type Evaporative Condenser[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(3): 94-98.

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空气相对湿度对板式蒸发冷凝器传热性能影响的实验研究

Experimental Study on Effect of Inlet-Air Relative Humidity on Heat Transfer Performance of Plate-Type Evaporative Condenser

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