中温太阳能集热技术应用分析

Application Analysis on Medium Temperature Solar Thermal Technology

本文总结了近年来中温太阳能集热技术的发展,包括太阳选择性吸收涂层吸收、发射和耐高温性能的优化提高,玻璃增透技术及太阳能集热器聚光技术的改进等。而后,结合太阳能空调系统的案例计算,对比分析了中温太阳能集热器和普通低温太阳能集热器的工作效率、太阳能保证率、节能量等指标。最后,指出了中温太阳能集热技术在建筑中应用的发展方向和前景。

In this paper,the development of medium temperature solar thermal technology was discussed,including the improvement of absorptivity,emissivity and resistance to high temperature of solar paint coat,the glass antireflection technology,the optimization of light-concentrating technology for solar collector,etc.Furthermore,basing on the case study,the system COP,solar fraction and energy-saving quantity of medium temperature solar thermal collector and common low temperature solar thermal collector were compared.As a result,the development direction and prospect of medium temperature solar thermal technology were pointed out.