严寒地区太阳能辅助土壤源热泵系统匹配优化研究  

Research on Matching Optimization of Solar-assisted Ground Source Heat Pump System in Severe Cold Area

作　　者：刘逸[1] 陈培强 李可欣 徐莹[1] Liu Yi;Chen Peiqiang;Li Kexin;Xu Ying(College of Energy and Architectural Engineering,Harbin University of Commerce,Harbin 150128,China)

机构地区：[1]哈尔滨商业大学能源与建筑工程学院,哈尔滨150028

出　　处：《流体机械》2020年第12期74-79,共6页Fluid Machinery

基　　金：黑龙江省自然科学基金联合引导项目(LH2020E028);黑龙江省博士后基金项目(LBH-Z15028);哈尔滨商业大学校级科研项目(17XN066);研究生创新科研资金项目(YJSCX2018-531HSD)

摘　　要：针对严寒地区采用土壤源热泵系统供能引起的土壤热失衡问题,引入太阳能辅助土壤源热泵系统供能并以此为研究对象。自行搭建实验台,利用实测数据验证数值模拟可靠性,对太阳能在冬夏季辅助该耦合系统供能的运行方案及系统中相对最优集热器面积与埋管长度的关系进行试验分析与模拟研究。研究结果表明:在冬夏季利用太阳能辅助土壤源热泵系统供能性能较好,冬季机组COP为3.69,夏季机组COP为6;若以能量守恒原则设计集热器面积,所得值可按10%酌情修正;在相同研究背景下,1 m^2太阳能集热器可减少5.24 m埋管长度。In view of the problem of soil heat imbalance caused by the use of ground source heat pump system for energy supply in severe cold areas,the solar-assisted ground source heat pump system was introduced and used as the research object.An experimental platform was built by the authors,the reliability of the numerical simulation was verified with the measured data,and the operation plan of the solar energy assisting the coupling system in winter and summer and the relationship between the relatively optimal collector area and the buried pipe length in the system were experimentally analyzed and simulated.The research results show that the solar-assisted ground-source heat pump system had better energy supply performance in winter and summer,the COP of the unit was 3.69 in winter and 6 in summer;If the collector area is designed based on the principle of energy conservation,the value obtained can be corrected according to 10%appropriately;Under the same research background,5.24 m buried pipe length can be reduced for a 1 m^2 solar collector.

关 键 词：太阳能-土壤源热泵 配置优化 土壤热平衡 数值模拟 

分 类 号：TH3[机械工程—机械制造及自动化] TK529[动力工程及工程热物理—热能工程]