Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration

Applied Sciences

Daniel Kopkáně¹  Karel Struhala²  Miroslav Čekon² 

[1] Global Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic;Institute of Building Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech Republic;

关键词: solar absorber;    low emissivity;    selective coating;    polymers;    life cycle assessment;   

DOI  :  10.3390/app10217861

来源: DOAJ

【 摘 要 】

Recent technological advances in solar absorber production may have created opportunities for new applications of these materials in buildings. A low-emissivity enhanced polymer-based absorber foil was developed and prototyped to demonstrate feasibility of the concept. This paper describes key development factors leading to a particular composition of the prototype and its testing, specifically spectroscopy measurements (both for shortwave and longwave regions) and environmental impact assessment of its production. It also provides comparison of the tested parameters with commercially available absorbers. The results show that the developed absorber has relatively good thermal emissivity (approx. 0.3), high solar absorption (0.95) and selectivity (3.2), and significantly lower (up to 98%) environmental impacts compared to the commercially available metal-based solar selective absorbers.

【 授权许可】

Unknown