Soiling and cleaning of polymer film solar reflectors

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dc.contributor.authorSansom, Christopher L.
dc.contributor.authorFernández-García, Aránzazu
dc.contributor.authorSutter, Florian
dc.contributor.authorAlmond, Heather
dc.contributor.authorKing, Peter
dc.contributor.authorMartínez-Arcos, Lucía
dc.date.accessioned2016-12-12T12:20:29Z
dc.date.available2016-12-12T12:20:29Z
dc.date.issued2016-11-29
dc.description.abstractThis paper describes the accelerated ageing of commercially available silvered polymer film by contact cleaning using brushes and water in the presence of soiling created by dust and sand particles. These conditions represent cleaning regimes in real concentrating solar power (CSP) solar fields in arid environments, where contact cleaning using brushes and water is often required to clean the reflecting surfaces. Whilst suitable for glass reflectors, this paper discusses the effects of these established cleaning processes on the optical and visual characteristics of polymer film surfaces, and then describes the development of a more benign but effective contact cleaning process for cleaning polymer reflectors. The effects of a range of cleaning brushes are discussed, with and without the presence of water, in the presence of sand and dust particles from selected representative locations. The experiments were repeated using different experimental equipment at Plataforma Solar de Almería (PSA) in Spain and Cranfield University in the UK. The results highlight differences that are attributable to the experimental methods used. Reflectance measurements and visual inspection show that a soft cleaning brush with a small amount of water, used in a cleaning head with both linear and rotational motion, can clean polymer film reflecting surfaces without inflicting surface damage or reducing specular reflectance.en_UK
dc.identifier.citationSansom C, Fernández-García A, Sutter F, Almond H, King P, Martínez-Arcos L, Soiling and cleaning of polymer film solar reflectors. Energies, 2016, Volume 9, Issue 12, Article number 1006en_UK
dc.identifier.issn1996-1073
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11143
dc.identifier.urihttp://www.mdpi.com/1996-1073/9/12/1006
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectconcentrating solar power (CSP)en_UK
dc.subjectsolar collectoren_UK
dc.subjectreflectanceen_UK
dc.subjectsoilingen_UK
dc.subjectpolymer filmen_UK
dc.subjectmirror cleaningen_UK
dc.titleSoiling and cleaning of polymer film solar reflectorsen_UK
dc.typeArticleen_UK

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