PV/T耦合热泵系统运行特性分析  

OPERATION CHARACTERISTICS ANALYSIS OF PV/T COUPLED HEAT PUMP SYSTEM

作　　者：周东东 刘寅[1] 董岁具 孟照峰 Zhou Dongdong;Liu Yin;Dong Suiju;Meng Zhaofeng(School of Energy and Environmental,Zhongyuan University of Technology,Zhengzhou 450007,China;Zhengzhou Heating Group Co.Ltd.,Zhengzhou 450052,China)

机构地区：[1]中原工学院能源与环境学院,郑州450007 [2]郑州热力集团有限公司,郑州450052

出　　处：《太阳能》2024年第12期40-48,共9页Solar Energy

基　　金：河南省重大科技专项(221100320100);河南省住房城乡建设科技计划项目(K-2145)。

摘　　要：基于PV/T-热泵供生活热水系统、地源-空气源热泵供暖系统构建了PV/T耦合热泵系统,并以郑州地区某栋3层公共建筑为研究对象,通过对比PV/T耦合热泵系统与PV/T-热泵供生活热水系统和地源-空气源热泵供暖系统在PV/T组件表面温度与发电效率、集热量、土壤温度变化及地源热泵季节能效比等方面的性能,对PV/T耦合热泵系统进行了效果验证。分析结果显示:1)在供暖季PV/T组件发电期间,相较于PV/T-热泵供生活热水系统,PV/T耦合热泵系统的PV/T组件日均表面温度平均值降低了7.38℃;在非供暖季PV/T组件发电期间,相较于PV/T-热泵供生活热水系统,PV/T耦合热泵系统的PV/T组件日均表面温度平均值降低了26.49℃。说明PV/T耦合热泵系统可有效降低PV/T组件的表面温度。2)在供暖季和非供暖季PV/T组件发电期间,相较于PV/T-热泵供生活热水系统,PV/T耦合热泵系统的日均发电效率平均值分别提升了2.72%和9.24%;在供暖季和非供暖季,相较于PV/T-热泵供生活热水系统,PV/T耦合热泵系统的集热效率分别提升了19.96%和74.65%。3)在PV/T组件面积为90 m^(2)的情况下,随着系统运行年限的增加,PV/T耦合热泵系统和地源-空气源热泵供暖系统的土壤温度均整体呈下降趋势。在PV/T组件面积为180 m^(2)的情况下,当采用PV/T耦合热泵系统时,20年内土壤温度以每年0.14℃的速率上升;相较于地源-空气源热泵供暖系统,PV/T耦合热泵系统的地源热泵季节能效比提升了13.44%。This paper constructs a PV/T coupled heat pump system based on a PV/T heat pump system for domestic hot water supply and a ground source air source heat pump heating system.Taking a three-story public building in Zhengzhou as the research object,the PV/T coupled heat pump system is compared with the PV/T heat pump system for domestic hot water supply and the ground source air source heat pump heating system in terms of surface temperature and power generation efficiency of PV/T components,heat collection,soil temperature changes,and seasonal coefficient of performance of ground source heat pumps.The effectiveness of the PV/T coupled heat pump system is verified.The analysis results show that:1)During the heating season,the average daily surface temperature of PV/T components in the PV/T coupled heat pump system decreased by 7.38℃compared to the PV/T heat pump system for supplying domestic hot water.During the non heating season,the average daily surface temperature of PV/T components in the PV/T coupled heat pump system decreased by 26.49℃compared to the PV/T heat pump system for supplying domestic hot water.The PV/T coupled heat pump system can effectively reduce the surface temperature of PV/T components.2)During the heating season and non heating season,the average daily power generation efficiency of the PV/T coupled heat pump system increased by 2.72%and 9.24%,respectively,compared to the PV/T heat pump system for domestic hot water supply.In the heating season and non heating season,compared to the PV/T-heat pump system for domestic hot water supply,the collection efficiency of the PV/T-coupled heat pump system has increased by 19.96%and 74.65%,respectively.3)In the case of a PV/T component area of 90 m^(2),with the increase of system operating years,the soil temperature of both the PV/T coupled heat pump system and the ground source air source heat pump heating system shows an overall downward trend.When using a PV/T coupled heat pump system with a PV/T component area of 180 m^(2),the soil temperature

关 键 词：PV/T组件 地源热泵 水源热泵 供暖 供暖季 

分 类 号：TM615[电气工程—电力系统及自动化] TK513.5[动力工程及工程热物理—热能工程]