Improvement of optical properties of AISI 304 as a solar absorber using a pulsed fiber laser.

ABSTRACT: Solar energy is an environmentally friendly and inexhaustible natural resource. It can be converted into thermal energy by using concentrated solar power (CSP) methods. One of the key components of CSP is a solar absorber, which absorbs concentrated solar radiation and converts it into heat. Recently, there have been many studies on enhancing the solar-to-thermal conversion efficiency of solar absorbers. In this work, a pulsed fiber laser was used to modify the surface of AISI 304 stainless steel as a solar absorbing material. By varying the energy density, surface roughness and oxide films can be formed, which affect the solar absorptance and thermal emittance of the substrate. The surface characteristics and corresponding optical properties were investigated. The surface roughness was me

SUBMITTER: Chomcharoen N 

PROVIDER: S-EPMC10363960 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature