Journal
APPLIED SCIENCES-BASEL
Volume 10, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/app10217861
Keywords
solar absorber; low emissivity; selective coating; polymers; life cycle assessment
Categories
Funding
- Grantova Agentura Ceske Republiky [GA 20-00630S]
- Vedecka grantova agentura MSVVaS SR a SAV [VEGA 1/0680/20]
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Featured Application Prototype of a solar absorber for building integrated solar thermal applications. 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.
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