基于自动蓄/放热装置的多曲面聚光集热空气源热泵系统实验研究
Experimental study on air source heat pump heating system based on automatic heat storage/discharge device with compound multi-surface concentrator
李志永 1孙梦 1马兴龙 2王维胜 1苑翔1
作者信息
- 1. 北方工业大学 土木工程学院,北京 100144
- 2. 北京理工大学 机械与车辆工程学院,北京 100081
- 折叠
摘要
为了实现北方农村地区清洁供暖,文章构建了基于自动蓄/放热装置和多曲面聚光集热器的空气源热泵供暖系统.实验研究表明:在相同供水温度下,随着蒸发器进口空气温度和太阳辐射强度的升高,热泵COP均逐渐升高.集热器及热泵联合运行时,蓄热装置可自动蓄热并对进入蒸发器的空气进行自动补热,空气温升为2～4℃,实验日系统集热量和制热量分别为 2.29 MJ/m2,27.99 MJ/m2,系统能效比(SEER)为 1.84,日平均太阳能贡献率为41.2%.空气源热泵单独运行时,实验日热泵制热量为8.75 MJ/m2,SEER为1.79.上述结果表明,文章构建的太阳能子系统可以自动调节系统的蓄热量及向蒸发器的补热量,提高了系统的能效比,降低了运行、维护难度,在农村地区具有一定的适应性.
Abstract
In order to achieve clean heating in northern rural areas,this paper constructs an air source heat pump heating system based on automatic heat storage/discharge devices and compound multi-surface concentrating collectors.Experimental research shows that:at the same water supply temperature,the COP of the heat pump increases gradually with the increase of the inlet air temperature of the evaporator and the intensity of solar radiation.When the heat collector and heat pump are operated together,the heat storage device can automatically store heat and automatically supplement the heat of the air entering the evaporator.The temperature rise of the air is 2～4℃.The system heat collection and heating capacity on the experimental day were 2.29 MJ/m2 and 27.99 MJ/m2 respectively,the system energy efficiency ratio(SEER)was 1.84,and the daily average solar energy contribution rate was 41.2%.When the air source heat pump operates alone,the heating capacity of the heat pump on the experimental day is 8.75 MJ/m2,and the SEER is 1.79.The above results show that the solar subsystem constructed in this article can automatically adjust the heat storage of the system and the heat supplement to the evaporator,improve the energy efficiency ratio of the system,reduce the difficulty of operation and maintenance,and has certain adaptability in rural areas.
关键词
复合多曲面聚光/空气源热泵/自动蓄/放热/实验研究/农村清洁供暖Key words
compound multi-surface concentrator/air source heat pump/automatic heat storage/discharge/experimental research/rural clean heating引用本文复制引用
基金项目
国家自然科学青年基金(52006013)
北京市科委京津冀科技创新协同项目(Z221100006022007)
出版年
2024
国家科技期刊平台
NSTL
万方数据