Nowadays Luminescent Solar Concentrators (LSCs) represent a very promising field for R&D about solar components, especially the semitransparent ones, suitable for building integration [1]. These components can likely represent an effective way to produce renewable energy preserving the transparency of the building envelope, by using a wide amount of surfaces which are at the moment neglected, as windows, skylights, shading devices, etc. The paper describes first evaluations carried out on a new LSC prototype, developed by ENI Donegani Research Institute [2], analyzed by Politecnico di Milano and in which photoluminescent dyes are dispersed. The dyes developed in the first research phase and dispersed in plastic transparent sheets are yellow and red. The two dyes have different possibility to concentrate solar radiation, thus a different electrical performance when installed outdoor. The two colors can be integrated in different parts of the building envelope carefully considering the color affection on visual comfort parameters [3,4,5]. The LSC yellow prototype can substitute parts of the exposed façades of a building in which people have to complain a visual task during all the day, changing the quality of light that become warmer. The increase of the correlated color temperature (CCT) produces favorable effects on visual comfort and can correct the cold light related to meteorological conditions in climates in which covered sky prevails. High transparency envelopes are usually installed in office buildings however a lot of usage scenarios can be proposed. Examples of colored transparent facades are shown in Figure 1 [6] and 2 [7]. The LSC red prototype results more critical in designing the installation in daily occupied working spaces although some cases can be found in modern architecture. Analyses have to be carried out to assess the effective impacts of the color in visual comfort and perception in indoor spaces. The purpose of the study is to assess how the application of LSC plates, installed in a convenient position to produce electrical energy can also be used as interactive windows involving visual comfort parameters. Experimental measures on the LSC sheets and their application on a scaled model were carried out on a single office space with two configurations of transparent south façade and discussed.

Effects on correlated color temperature by using luminescent solar concentrators integrated in the building envelope

ASTE, NICCOLO';PALLADINO, PIETRO;TAGLIABUE, LAVINIA CHIARA;
2013-01-01

Abstract

Nowadays Luminescent Solar Concentrators (LSCs) represent a very promising field for R&D about solar components, especially the semitransparent ones, suitable for building integration [1]. These components can likely represent an effective way to produce renewable energy preserving the transparency of the building envelope, by using a wide amount of surfaces which are at the moment neglected, as windows, skylights, shading devices, etc. The paper describes first evaluations carried out on a new LSC prototype, developed by ENI Donegani Research Institute [2], analyzed by Politecnico di Milano and in which photoluminescent dyes are dispersed. The dyes developed in the first research phase and dispersed in plastic transparent sheets are yellow and red. The two dyes have different possibility to concentrate solar radiation, thus a different electrical performance when installed outdoor. The two colors can be integrated in different parts of the building envelope carefully considering the color affection on visual comfort parameters [3,4,5]. The LSC yellow prototype can substitute parts of the exposed façades of a building in which people have to complain a visual task during all the day, changing the quality of light that become warmer. The increase of the correlated color temperature (CCT) produces favorable effects on visual comfort and can correct the cold light related to meteorological conditions in climates in which covered sky prevails. High transparency envelopes are usually installed in office buildings however a lot of usage scenarios can be proposed. Examples of colored transparent facades are shown in Figure 1 [6] and 2 [7]. The LSC red prototype results more critical in designing the installation in daily occupied working spaces although some cases can be found in modern architecture. Analyses have to be carried out to assess the effective impacts of the color in visual comfort and perception in indoor spaces. The purpose of the study is to assess how the application of LSC plates, installed in a convenient position to produce electrical energy can also be used as interactive windows involving visual comfort parameters. Experimental measures on the LSC sheets and their application on a scaled model were carried out on a single office space with two configurations of transparent south façade and discussed.
Colour and Colorimetry Multidisciplinary Contributions Vol. IX B
978-88-387-6242-0
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/762433
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