摘要
设计阳台壁挂式太阳能热水系统并安装在小高层建筑上,真空管集热器垂直安装在阳台立面。考虑到楼层及用户用水模式的影响,选择无遮挡且用水集中在早晚的用户进行测试。同时,基于TRNSYS平台对系统进行模拟分析。结果显示:该系统日均效率达到40%,夏秋两季的太阳能保证率较高;在给定工况下,年获得能量为3 203.9 MJ/m^2,太阳能保证率为40.5%。若要提高太阳能保证率至50%,需要减少水箱体积与太阳能集热面积比至37.5 L/m^2。
One balcony wall type solar water heater system is designed and installed in a high-rise building.The evacuated glass tube solar collector is fixed vertically on the balcony wall.Considering the impacts of storeys and users' water consumption pattern,apartments with collectors no shading and water consumption concentrated in the morning and evening are selected for test.Meanwhile,the simulation on the system is conducted using TRNSYS platform.The results show that the mean daily efficiency of collector can reach 40%.Solar fraction is high in summer and autumn.Under given conditions,the annual energy extracted from tank is 3 203.9 MJ/m^2,and the annual solar fraction is40.5%.If the ratio of tank volume and collector area is decreased to 37.5 L/m^2,the solar fraction can be increased to 50%.
出处
《制冷与空调》
2015年第4期36-40 16,16,共6页
Refrigeration and Air-Conditioning
关键词
阳台壁挂式太阳能热水系统
高层建筑
测试分析
模拟
balcony wall type solar water heater system
high-rise building
experimental analysis
simulation
