基于光伏发电余热的地源热泵系统动态模拟分析  

DYNAMIC SIMULATION ANALYSIS OF GROUND SOURCE HEAT PUMP SYSTEM BASED ON PHOTOVOLTAIC POWER WASTE HEAT

作　　者：杨先亮[1] 牛帅 毛杭倩媛 时国华[1] Yang Xianliang;Niu Shuai;Mao Hangqianyuan;Shi Guohua(School of Energy and Mechanical Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,保定071003

出　　处：《太阳能学报》2021年第10期341-348,共8页Acta Energiae Solaris Sinica

基　　金：河北省自然科学基金(E2016502027);中央高校基本科研业务费专项资金(2017MS124)。

摘　　要：针对太阳辐射强度大的寒冷地区,以提高光伏组件净发电量为目标,同时合理利用光伏组件背板发电余热,设计一种基于光伏发电余热的户式地源热泵供暖系统。以张家口地区100 m^(2)农村住宅为研究对象进行实例分析,并用TRNSYS模拟软件搭建该住宅和供暖系统的仿真模型,分析比较不同冷却流量对光伏组件发电量、光伏组件平均温度和土壤温度的影响。最终得出的结论为冷却流量的改变对土壤温度的变化影响较小,且冷却流量4700 kg/h为该系统最佳冷却流量,此时全年光伏组件的净发电量最大,可达5900 kWh。与无光伏冷却系统相比,净发电量提升386.63 kWh。For the cold region with high solar radiation intensity,this paper aims to increase the net power generation of photovoltaic panels,and properly use the waste heat generated by photovoltaic backboards.An indoor ground source heat pump heating system based on waste heat from photovoltaic power is designed.Taking a 100 m;rural residence is analyzed in Zhangjiakou as the example,an analysis model is established by TRNSYS simulation software.The effects of different cooling flow rates on photovoltaic panel power generation,average temperature of photovoltaic and soil temperature are analyzed and compared.It is concluded that the change of cooling water flow has little effect on soil temperature.The optimal cooling water flow rate of the system is 4700 kg/h.Meanwhile,the annual net power generation of photovoltaic panels has reached a maximum of 5900 k Wh and increased by 386.63 kWh compared with the non-photovoltaic cooling system.

关 键 词：地源热泵 计算机模拟 光伏发电 仿真建模 余热 冷却 

分 类 号：TM615[电气工程—电力系统及自动化] TU833[建筑科学—供热、供燃气、通风及空调工程]