Construction and Optical Testing of Inflatable Membrane Mirror Using Structured Light Technique

Autor: Felipe Patiño-Jiménez, Yuri Nahmad-Molinari, Víctor Iván Moreno-Oliva, Fátima De Los Santos-García, Agustin Santiago-Alvarado
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: International Journal of Photoenergy, Vol 2015 (2015)
Druh dokumentu: article
ISSN: 1110-662X
1687-529X
DOI: 10.1155/2015/196186
Popis: Construction and characterization of an inflatable mirror prototype made out of flexible polymeric membranes are being presented. Surfaces were curved by imposing a slight excess of air pressure. Lightweighted, lowcost, and commercially available materials were selected in order to produce solar concentration elements at competitive prices. In this sense, large-area, image-forming mirrors with low optical acuity were achieved by concentration purposes. Optical characterization of the mirror’s shape at a given pressure or curvature radius was done by means of a structuredlight technique with a resolution of 0.1 mm finding a conical shape acquired by the inflated mirror as the best approximation. Concentration ratio achieved for a focal length of 5068 mm was of 25.1 suns, making a promising approach for lowering initial investment costs in applications such as hot-water, parabolic dish with Stirling engines, or concentrated photovoltaic electricity generation.
Databáze: Directory of Open Access Journals