Thermal Performance and Optimizing of Composite Trombe Wall with Temperature-Controlled DC Fan in Winter

Sustainability

Hiroatsu Fukuda¹  Yuewei Zhu²  Tao Zhang²  Qingsong Ma² 

[1] Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu 808-0135, Japan;Innovation Institute for Sustainable Maritime Architecture Research and Technology, Qingdao University of Technology, Qingdao 266033, China;

关键词: Trombe wall;    DC fan;    simulation;    heating load;    THERB for Ham;   

DOI  :  10.3390/su14053080

来源: DOAJ

【 摘 要 】

This paper discusses an improved approach to the Trombe wall: an insulated panel is installed on the inner side, and vents are installed at the top and bottom to connect the outer and inner air layer with the interior. Direct current (DC) fans are installed in the upper vents for stable control of the air circulation. The study first analyzed the thermal performance of this composite Trombe wall, for which the heat load was 27.3% less compared to the classic Trombe wall and 32.1% less compared to the case without the Trombe wall. However, its efficiency for heating the room temperature was not high without heating. Then, we optimized the ventilation efficiency, the proportion of the Trombe wall in the room, and the type of glazing. The highest heat load savings could be achieved when the ventilation openings used high ventilation with temperature-controlled fans and the Trombe wall about 3% of the house floor area. With the use of Low-e double-glazing, we were able to save nearly 41.3% of the heat load than that with the regular single-glazing. For the composite Trombe wall, after taking into account the optimization factors, the room temperature was significantly higher, and could save nearly 52.3% of energy compared to the pre-optimization period.

【 授权许可】

Unknown