Thermal characteristics of the gravel layer in the system heated by hot water natural circulation with solar collector were studied.
对由太阳能集热器热水自然循环加热的太阳能热转换系统卵石层的热特性进行了实验研究。
2
The calculation shows that using the selective coating and the cylindrical glass cover both are the effective means to improve the thermal performance of the collector.
计算表明,使用选择性吸收涂层和圆管形玻璃罩都是改善集热器热性能的有效措施。
3
The most common type of active solar thermal technology is the flat plate collector.