家电科技 ›› 2021, Vol. 0 ›› Issue (zk): 202-205.doi: 10.19784/j.cnki.issn1672-0172.2021.99.048

• 第二部分 制冷与空调 • 上一篇    下一篇

基于自然对流换热末端热泵系统的实验研究

党鹏飞, 马国远, 许树学, 刘福生, 刘帅领   

  1. 北京工业大学 北京 100124
  • 出版日期:2021-11-25 发布日期:2021-12-22
  • 作者简介:党鹏飞,硕士研究生。研究方向:制冷与低温工程。地址:北京市朝阳区平乐园100号北京工业大学。E-mail:dpf604778984@qq.com。
  • 基金资助:
    国家自然科学基金(51776004); 北京市教委科技计划一般项目(KM201910005017)

Experimental study on terminal heat pump system based on natural convection heat transfer

DANG Pengfei, MA Guoyuan, XU Shuxue, LIU Fusheng, LIU Shuailing   

  1. Beijing University of Technology Beijing 100124
  • Online:2021-11-25 Published:2021-12-22

摘要: 设计了一种基于自然对流换热末端的热泵的循环系统并搭建了该系统的实验装置,利用环境间对该系统的启动过程特性、制热性能、丝管式末端表面温度分布以及室内垂直温度梯度进行了测试。结果表明,该热泵系统启动迅速,丝管式末端的表面温度分布较为均匀,室内空气垂直温差仅为2.1℃,且随着室外温度的升高,该系统的制热量、功耗以及COP均逐渐升高,在室外温度为-20℃~5℃的范围内,其COP最高可达4.34。

关键词: 热泵, 自然对流换热, 制热性能

Abstract: A circulating system of terminal heat pump system based on natural convection heat transfer is designed, and the experimental device of the system is built. The starting process characteristics, heating performance, surface temperature distribution of wire tube and indoor vertical temperature gradient of the system are tested in the environment. The results show that the heat pump system starts quickly, the surface temperature distribution of the wire tube end is relatively uniform, and the vertical temperature difference of indoor air is only 2.1℃. With the increase of outdoor temperature, the heating capacity, power consumption and COP of the system gradually increase, when the outdoor temperature is -20℃~5℃, the COP is up to 4.34.

Key words: Heat pump, Natural convection heat transfer, Heating performance

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