可再生能源2023，Vol.41Issue(12)：1596-1604,9.
太阳能应用于土壤源热泵低温热源侧的实验研究
Experimental study on the application of solar energy on the low temperature heat source side of ground source heat pump
摘要
Abstract
Starting from improving the coefficient of performance(COP)of heat pump units and making reasonable use of solar energy at different temperature levels,this article analyzes the impact of evaporator inlet temperature on the performance of the heat pump system based on a large number of experimental results of the solar soil source composite heat pump system.On this basis,the operating characteristics of the composite source heat pump and solar heat pump conditions are analyzed.The analysis results indicate that as the inlet temperature of the evaporator increases,the heat absorption capacity of the heat pump unit gradually increases,and the input power of the heat pump unit slightly increases,leading to a gradual increase in both the heat supply and COP of the heat pump unit;When a composite source heat pump operates,there are two operating scenarios:soil source and solar energy heating together,and short-term soil heat storage and solar energy heating separately.In order to improve the performance of the heat pump unit,when the solar energy collection is low,the composite source heat pump is prioritized for operation;The natural recovery ability of soil source temperature is poor,and it is necessary to use solar energy collection systems to forcibly store heat across seasons to increase soil source temperature and alleviate the phenomenon of"cold accumulation"of soil sources.关键词
太阳能/土壤源/热泵/低温热源Key words
solar energy/soil source/heat pump/low temperature heat source分类
能源科技引用本文复制引用
邵正日,刘龙,梁金广,谢华清,李国威,钱龙,李嘉魏..太阳能应用于土壤源热泵低温热源侧的实验研究[J].可再生能源,2023,41(12):1596-1604,9.基金项目
国家自然科学基金资助项目(51604077) （51604077）
辽宁省教育厅科学研究项目(L2020001) （L2020001）
辽宁省储能与能源利用技术重点实验室基金项目(CNNK202313). （CNNK202313）
