Characterization of sugarcane bagasse ash under different beneficiation processes for application as solar selective surfaces

Autor: Ithyara Dheylle Machado de Medeiros, Raissa Venâncio, Gabriela Oliveira Galvão, José Félix da Silva Neto, Kelly Cristiane Gomes
Jazyk: English<br />Portuguese
Rok vydání: 2021
Předmět:
Zdroj: Revista Principia, Vol 1, Iss 53, Pp 124-130 (2021)
Druh dokumentu: article
ISSN: 1517-0306
2447-9187
DOI: 10.18265/1517-0306a2020v1n53p124-130
Popis: The present study evaluated the influence of two sugarcane bagasse ash (SCBA) beneficiation processes (sieving and high-energy milling) as an alternative to evaluate its absorption potential for application as a raw material for the production of solar absorber films. It was noticed that the absorption levels of all the samples were higher than 90% and that the SBCA has predominance of SiO2 corroborated by the mineralogical analysis. The thermal behavior of all the samples was similar among each other, presenting a total mass loss corresponding to 8.5%. As the ash is able to maintain a thermal stability in the temperature range of 100°C to 1000°C, and the chemical and mineralogical composition favors the absorption of solar energy, SCBA has proven to be favorable for application as raw material of selective solar surfaces.
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