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无霜空气源热泵系统冬季再生性能初步实验
邱君君,张小松,李玮豪
0
(东南大学能源与环境学院)
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。
关键词:  再生  无霜  空气源热泵  实验验证
DOI:
投稿时间:2018-07-19修订日期:2018-09-29
基金项目:国家重点研发计划(2016YFC0700305)资助项目。
Experimental Research on a Frost-free Air Source Heat Pump
Qiu Junjun,Zhang Xiaosong,Li Weihao
(School of Energy and Environment, Southeast University)
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.
Key words:  regeneration  frost-free  air source heat pump  experimental validation

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