太阳能光伏降温与热风内墙蓄热耦合系统发电与供暖特性研究  

Study on Power Generation and Heating Characteristics of Solar Photovoltaic Cooling and Hot Air Interior Wall Heat Storage

作　　者：祁式展 余涛[1] Qi Shizhan;Yu Tao(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)

机构地区：[1]西南交通大学机械工程学院,成都610031

出　　处：《制冷与空调（四川）》2024年第5期636-641,661,共7页Refrigeration and Air Conditioning

摘　　要：提出一种耦合光伏发电余热与热风内墙的供暖系统(简称PV/T-HVIW系统),该系统能有效提高光伏发电效率和室内温度。使用TRNSYS软件建立该系统的仿真模型,模拟分析了光伏电池累计发电量、集热器集热量、室内空气温度和供暖负荷。结果表明:本系统相较于独立运行的光伏发电系统在供暖季发电量提高8.2%,平均发电效率提升约1.6%;回收的余热能够有效改善室内热舒适,相较于无该系统的普通居住建筑和热风直接供暖的建筑,室内夜间最低空气温度分别提高了6.3℃和2.7℃,保证室内最低温度为15℃时,夜间供暖负荷减少了88.0%和61.1%。This paper presents a heating system coupling photovoltaic waste heat and hollow ventilation interior wall(PV/T-HVIW system),which can effectively improve photovoltaic power generation efficiency and indoor temperature.TRNSYS software was used to establish the simulation model of the system,and the cumulative power generation,collector heat,indoor air temperature and heating load were simulated and analyzed.The results show that compared with the independent photovoltaic power generation system,the power generation capacity of the system is increased by 8.2%and the average power generation efficiency is increased by about 1.6%in the heating season.The recovered waste heat can effectively improve indoor thermal comfort.Compared with ordinary residential buildings without this system and buildings with direct hot air heating,the minimum indoor air temperature at night is increased by 6.3℃and 2.7℃respectively,ensure that the minimum indoor temperature is 15℃,the night heating load is reduced by 88.0%and 61.1%.

关 键 词：光伏余热 热风内墙 蓄热 发电特性 供暖特性 

分 类 号：TU834.31[建筑科学—供热、供燃气、通风及空调工程]