Experimental Research on a Frost-free Air Source Heat Pump

Qiu Junjun; Zhang Xiaosong; Li Weihao

doi:10.3969/j.issn.0253-4339.2019.05.026

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Experimental Research on a Frost-free Air Source Heat Pump

更新时间：2024-07-18

- Experimental Research on a Frost-free Air Source Heat Pump
- Journal of Refrigeration Vol. 40, Issue 5, (2019)
- 作者机构：
  
  东南大学能源与环境学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2019.05.026
  CLC：
- Published：2019
- 稿件说明：
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Qiu Junjun, Zhang Xiaosong, Li Weihao. Experimental Research on a Frost-free Air Source Heat Pump[J]. Journal of refrigeration, 2019, 40(5).
DOI：

Qiu Junjun, Zhang Xiaosong, Li Weihao. Experimental Research on a Frost-free Air Source Heat Pump[J]. Journal of refrigeration, 2019, 40(5). DOI： 10.3969/j.issn.0253-4339.2019.05.026.

摘要

本文提出一种新型无霜空气源热泵空调系统，该热泵系统不仅冬季可以无霜高效运行，夏季性能也有所提升。通过搭建该系统实验平台研究了再生模式，并对再生模式的实验数据进行回归分析，拟合得出的关联式相对误差小，拟合度高，再生量的平均相对误差为0.31%，再生效率的平均相对误差为0.56%。分析关联式得出空气流量、溶液塔入口溶液温度、溶液流量、溶液质量分数对系统再生性能的影响，发现再生量随空气流量、溶液温度、溶液流量的上升，溶液质量分数的下降而上升；再生效率随空气流量的下降，溶液流量的上升而分别增大26.00%与13.63%；再生量随溶液流量的增加升高了26.30%，随质量分数的增加下降了约6.10%，溶液温度与质量分数在本文研究范围内影响较小。

Abstract

A novel air source heat pump systemthat operates efficiently during winter and improvesits performance during summer has been proposed. Based on the experimental results

the regeneration mode and regression analysis of the experimental data were obtained. The relative error of the two formulaswas relatively low

which exhibited a high degree of fitting. The average relative error of regeneration quantity and regeneration efficiency was 0.31% and 0.56%

respectively. Moreover

a correlation analysis was conducted to determine the effects of air volume flow rate

solution temperature

solution volume flow rate

and solution mass fraction on the regeneration performance of the system. The corresponding results demonstrated an increase in the regeneration rate with an increase in the outdoor air flow rate

solution temperature

and solution volume flow rate

and a decrease in the solution mass fraction. In addition

the regeneration efficiency increased by 26.00% and 13.63% with a decrease in the air volume flow rate andan increasein the solution volume flow rate

respectively. Within the scope of this study

regeneration rate demonstrated an increment of 26.30% with an increase in the solution volume flow rateand a decrement of 6.10% with an increase in solution mass fraction

respectively

whereas the solution temperature and mass fraction were found to have slight influence on it.

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