太阳能-地源热泵复合系统的性能分析及优化  

PERFORMANCE ANALYSIS AND OPTIMIZATION OF SOLAR-GROUND-SOURCE HEAT PUMP COMPOSITE SYSTEM

作　　者：郑煜鑫 张亮亮 白雪 李阳 郭尚昊 陈小兵 Zheng Yuxin;Zhang Liangliang;Bai Xue;Li Yang;Guo Shanghao;Chen Xiaobing(School of Energy and Architecture,Xi’an Aeronautical Institute,Xi’an 710077,China)

机构地区：[1]西安航空学院能源与建筑学院,西安710077

出　　处：《太阳能》2023年第2期65-73,共9页Solar Energy

基　　金：陕西省自然科学基础研究计划(2021JQ-856);西安市科技计划项目(2022JH-RYFW-0122)。

摘　　要：以应用于西安市周边地区农村住宅的太阳能-地源热泵复合系统为研究对象,利用TRNSYS软件对该复合系统进行建模。首先,对复合系统中主要部件的参数计算方式进行了详细阐述;其次,对复合系统中的太阳能集热器倾角与蓄热水箱容积进行了分析;最后,从太阳能集热系统集热量、地源热泵系统能耗及能效比(COP)等角度对复合系统的运行工况进行优化。研究结果表明:在整个供暖期,在集热器倾角为52°、蓄热水箱容积为0.45 m^(3)时,整个复合系统的总能耗最低;优化后的复合系统的总能耗为1089.6 kWh,地源热泵系统在运行期间的平均COP为3.5371,太阳能集热器的累计集热量为327.3 kWh。研究结果为西安市及其周边地区应用太阳能-地源热泵复合系统的设计及优化奠定了基础,对实现碳达峰及碳中和目标具有重要意义。This paper takes the solar-ground-source heat pump composite system applied in rural residential areas around Xi’an as the research object,and uses TRNSYS software to model the composite system.Firstly,the parameter calculation methods of the main components in the composite system are described in detail.Secondly,the inclination angle of solar collector and the volume of hot water storage tank in the composite system are analyzed.Finally,the operating conditions of the composite system are optimized from the perspectives of the heat collection of the solar heat collection system,the energy consumption of the groundsource heat pump system and the COP.The research results show that in the whole heating period,when the inclination angle of solar collector is 52°and the volume of hot water storage tank is 0.45 m^(3),the total energy consumption of the whole composite system is the lowest.Meanwhile,the total energy consumption of the optimized composite system is 1089.6 kWh,the average COP of the ground-source heat pump composite system during operation is 3.5371,and the acumulated heat collection of the solar collector is 327.3 kWh.The research results lay a foundation for the design and optimization of the application of solar-ground-source heat pump composite system in Xi’an and its surrounding areas,and are of great significance for achieving the goal of emission peak and carbon neutrality.

关 键 词：太阳能 太阳能集热系统 地源热泵系统 复合式采暖 TRNSYS软件 能效比 

分 类 号：TU832.19[建筑科学—供热、供燃气、通风及空调工程]