太阳能炕和Trombe墙相结合的新型太阳能采暖系统的数值研究

NUMERICAL STUDY ON A NOVEL SOLAR HEATING SYSTEM WITH COUPLED SOLAR KANG AND TROMBE WALL

提出了Trombe墙与太阳能炕相结合的新型太阳能采暖系统,建立了新型太阳能采暖系统的理论模型。采用大连1月份的气象数据对该系统的室内温度、炕表面温度等进行数值模拟,讨论运行方式、有无辅助热源等对室内热环境的影响,并与单独采用太阳能炕或Trombe墙的采暖系统进行对比。计算结果显示,在Trombe墙和新型太阳能炕耦合运行模式,室内温度和炕面温度高于炕单独运行模式或Trombe墙单独运行模式;有辅助加热工况下室内热环境的稳定性优于没有辅助热源工况。

A novel solar heating system with coupled solar Kang and Trombe wall was proposed and a numerical model was set up for the simulation of the system. Based on the meteorologic data of Dalian city in January, simulation was carried out to obtain the room temperature and Kang temperature of the system. Results showed that compared with single solar Kang or single Trombe wall, this system is more advantageous in improving the room temperature and Kang temperature; a water regenerator or an assistant heat resource could enhance the system＇ s stability; a larger window could obtain a higher room temperature and Kang temperature in daylight while it＇s almost effectless in night.