严寒地区太阳能跨季节蓄热热泵系统研究  

Study on the solar-assisted ground-source heat pump system with seasonal heat storage in cold regions

作　　者：窦子慧 刘景霞[1] 李宝利 DOU Zihui;LIU Jingxia;LI Baoli(School of Information Engineering,Inner Mongolia University of Science and Technology,Baotou 014017,China)

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014017

出　　处：《综合智慧能源》2023年第4期52-58,共7页Integrated Intelligent Energy

基　　金：内蒙古自治区应用技术研究与开发资金项目(201802001)。

摘　　要：针对我国严寒地区冬季热负荷远大于夏季冷负荷导致的土壤热失衡问题,选取包头市某医院为对象,应用TRNSYS仿真软件分析太阳能跨季节蓄热土壤源热泵系统的性能。分析结果表明:跨季节蓄热系统运行10年内,土壤温度由10.00℃提升到10.68℃,太阳能-土壤源热泵复合系统的土壤温度下降至5.62℃。此时跨季节蓄热模式热泵机组的性能系数为3.25,同比上涨2.20%;供冷季热泵机组的性能系数为7.55,同比上涨0.13%。同时,总耗电量相较于复合系统减少11.54%。由此可见,太阳能跨季节蓄热模式不仅可以提高土壤源热泵制热性能系数,又能有效缓解土壤热失衡的现象,同时节约系统总耗电量。In view of the soil heat imbalance caused by the manifested gap between higher cooling load in summer and lower heating load in winter in cold regions,TRNSYS simulation software was selected to analyze the performance of a solarassisted ground-source heat pump(SAGSHP)system with seasonal heat storage in a hospital in Baotou City.The analysis results show that the soil temperature has increased from 10.00℃to 10.68℃after 10-year operation of the seasonal heat storage system,while the soil temperature has decreased by 5.62℃after 10-year operation of a solar energy coupled ground source heat pump(SGSHP)system.The COP of the SAGSHP system taking seasonal heat storage was 3.25,up 2.20%year on year,and its EER was 7.55,up 0.13%year on year.At the same time,the total power consumption of the SAGSHP system taking seasonal heat storage is reduced by 11.54%compared with that of the SGSHP system.It can be seen that SAGSHP systems taking seasonal heat storage mode can not only improve the heating performance coefficient of soil source heat pumps,but also alleviate the soil heat imbalance and save the power consumption of the whole system.

关 键 词：太阳能 太阳能跨季节蓄热土壤源热泵 太阳能-土壤源热泵 TRNSYS 跨季节蓄热 土壤源热泵 

分 类 号：TK52[动力工程及工程热物理—热能工程]