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主、被动结合的太阳能双效集热器空气采暖系统,可同时解决南向房间和北向房间的供暖问题。借助TRNSYS仿真平台,编写双效集热器的嵌入模块,对应用在太阳能示范建筑上的主、被动式双效集热器空气采暖进行模拟研究。模拟结果显示在合肥地区,木质结构的示范房只需白天供暖情况下,整个采暖期的太阳能保证率为38%,而同样条件下在拉萨和上海地区,太阳能保证率分别达到77%和58%;若示范建筑采用有蓄热能力的混凝土砖墙结构,在拉萨地区全天供暖条件下太阳能保证率达到64%;晴朗天气,南向房间和北向房间白天均可达到20℃舒适性温度。同时讨论集热器倾角、出口温度、集热面积等对主动式空气采暖太阳能保证率的影响。
The main and passive combined solar double-effect heat collector air heating system can solve the problem of heating in the south room and the north room at the same time. Based on the TRNSYS simulation platform, an embedded module of double-effect thermal collector is prepared to simulate the air heating of main and passive double-effect collectors applied to solar demonstration buildings. The simulation results show that in Hefei, the demonstration room with wooden structure only needs daytime heating, the solar energy guarantee rate is 38% during the whole heating period, while in the same conditions, the solar energy guarantee rates in Lhasa and Shanghai reach 77% and 58% ; If the model building adopts the concrete brick wall structure with heat storage capacity, the solar energy guarantee rate will reach 64% under the condition of heating all-day in Lhasa. In sunny weather, the comfortable temperature will reach 20 ℃ in the south and the north to the room during daytime. At the same time, the influences of collector inclination, outlet temperature and collector area on the solar energy guaranteed rate of active air heating are discussed.