家电科技 ›› 2019, Vol. 0 ›› Issue (6): 44-51.doi: 10.19784/j.cnki.issn1672-0172.2019.06.005

• 论文 • 上一篇    下一篇

制冷空调换热器的研究进展(三)—换热器长效性能

丁国良1, 詹飞龙1, 庄大伟1, 高屹峰2, 张浩3, 武滔3   

  1. 1.上海交通大学制冷与低温工程研究所 上海 200240;
    2.国际铜业协会(中国)上海代表处 上海 200020;
    3.广东美的制冷设备有限公司 广东佛山 528311
  • 发布日期:2019-11-27
  • 作者简介:丁国良,glding@sjtu.edu.cn

Development of heat exchanger for refrigeration and air-conditioning (3)—long-term performance of heat exchangers

DING Guoliang1, ZHAN Feilong1, ZHUANG Dawei1, GAO Yifeng2, ZHANG Hao3, WU Tao3   

  1. 1.Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University Shanghai 200240;
    2.International Copper Association Shanghai Office Shanghai 200020;
    3.GD Midea Air Conditioning Equipment Co., Ltd Foshan 528311
  • Published:2019-11-27

摘要: 空调器长期使用后,会因换热器表面积聚大量的灰尘而导致空调器的长效性能出现衰减。本文的目的是总结目前空调器及换热器的长效性能研究进展。介绍了积灰对换热器性能衰减的影响,包括干工况下积灰和析湿工况下积灰对换热器空气侧换热和压降的影响。介绍了长效节能评价标准的发展进程,以及换热器长效性能衰减测试技术的发展。介绍了换热器表面粉尘颗粒物沉积过程的预测方法,包括干工况和析湿工况下的颗粒物沉积模型。还介绍了换热器除尘技术的研究情况,以及各除尘技术的应用特点。

关键词: 长效性能, 评价标准, 加速积尘, 颗粒物沉积, 除尘技术

Abstract: The long-term performance of air-conditioners will decrease after long-term operation due to the coverage of particulate fouling in heat exchangers. The purpose of the present study is to summarize the recent research on long-term performance of air-conditioners and heat exchangers. The introduction to the influence of dust particles on the performance degradation of heat exchanger covers the effect of dry dust particles and the effect of wet dust particles on the air-side heat transfer and pressure drop. The research on the long-term performance evaluation covers the evaluation standard and the testing method of long-term performance degradation. The research of prediction method on the particle deposition on heat exchanger includes the dry particle deposition model and the wet particle deposition model. The dust removal techniques of heat exchangers and their application fields are also introduced.

Key words: Long-term performance, Evaluation standard, Accelerated dust testing, Particle deposition, Dust removal technology