Performance Research of Air-conditioning Heat Exchanger Without Heat Contact Resistance

Wang Rui; Feng Chaoqing; Wang Yichun

doi:10.3969/j.issn.0253-4339.2014.03.077

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Performance Research of Air-conditioning Heat Exchanger Without Heat Contact Resistance

更新时间：2024-07-18

- Performance Research of Air-conditioning Heat Exchanger Without Heat Contact Resistance
- Journal of Refrigeration Vol. 35, Issue 3, (2014)
- 作者机构：
  
  1. 内蒙古工业大学
  2. 北京理工大学机械与车辆学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2014.03.077
  CLC：
- Published：2014
- 稿件说明：
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Wang Rui, Feng Chaoqing, Wang Yichun. Performance Research of Air-conditioning Heat Exchanger Without Heat Contact Resistance[J]. Journal of refrigeration, 2014, 35(3).
DOI：

Wang Rui, Feng Chaoqing, Wang Yichun. Performance Research of Air-conditioning Heat Exchanger Without Heat Contact Resistance[J]. Journal of refrigeration, 2014, 35(3). DOI： 10.3969/j.issn.0253-4339.2014.03.077.

摘要

将不同形状的波纹翅片与无接触热阻技术结合研制了波纹型无接触热阻换热器，并利用CFD仿真软件进行对比分析尖角波纹翅片和圆角波纹翅片空气侧换热性能及阻力特性，寻找较好的翅片形状。按照仿真结果生产无接触热阻尖角波纹翅片空调换热器实验样件，进行实验测试，实验结果表明：翅片表面换热系数仿真结果与实验结果较为一致，整体误差在10%以内，仿真结果能基本反映翅片表面的实际换热情况。引入强化传热指标，通过仿真结果计算可知，在不同风速下强化传热指标DEC均大于1，说明尖角波纹翅片的传热效果优于圆角波纹翅片。

Abstract

Combined the without heat contact resistance technology with different corrugated fins

the new kinds of fin has been developed. The surface heat transfer coefficient and friction coefficient of fins was calculated by CFD software in order to find the different between sharp corner corrugated fins and rounded corner corrugated fins. The sample of heat exchanger was made and the performance was tested in wind tunnel experimental system. Compared the simulation and experiment result

we found that they have good consistency and the errors between them are less than 10%. The simulation result can reflect the real heat transfer situation between the fins of exchanger. Evaluation of heat transfer enhancement was adopted. The result showed that the DEC always bigger than 1 in different wind speed

so the performance of sharp corner corrugated fins is better than rounded corner corrugated fins.

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Related Institution

TCL Delong Household Appliances (Zhongshan) Co., Ltd.

Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences

School of Mechanical and Power Engineering, Shenyang University of Chemical Technology

Shanghai First Refrigerating Machine Co

Shanghai Key Laboratory of Muliphase Flow and Heat Transfer in Power Engineering

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