Study on solar energy utilization characteristics of a solar building integrated wall
发布时间：2026-04-09
点击次数：
- 发表刊物：
- Applied Thermal Engineering
- 关键字：
- Building integrated solar thermal (BIST);Heating;Mechanical circulation;Heat transfer amount;Solar thermal utilization efficiency
- 摘要：
- This study proposed a solar building integrated wall in which a solar hot water circulation system was installed. The wall was provided with a solar collector and a thermal radiation plate, which were connected through circulating pipes with a control valve and a water pump. In the cold climate of Xiangtan, experiments and simulations on the solar energy utilization efficiency of the wall were carried out. The results show that the heat transfer amount of the solar building integrated wall increased with the increase of the solar irradiance, whereas the solar thermal utilization efficiency decreased. Increasing the circulating water flow can increase the heat transfer amount of the wall and solar thermal utilization efficiency, thus change the effective thermal resistance of the wall. Under the studied conditions, the heat transfer amount and solar thermal utilization efficiency reached 1530.21 W and 63.8%, respectively. The circulating water flow does not need to be greater than 200 L/(h.m(2)). The area ratio of the thermal radiation plate to solar collector has a great influence on the heat transfer amount of the wall and the solar thermal utilization efficiency. Increasing the area of thermal radiation plate is beneficial to improving the solar thermal utilization efficiency.
- 论文类型：
- 期刊论文
- 论文编号：
- 115289
- 卷号：
- 175
- 是否译文：
- 否
- 发表时间：
- 2020-01-01