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Proceedings Paper

ADASY (Active Daylighting System)
Author(s): Daniel Vázquez-Moliní; Mario González-Montes; Antonio Álvarez Fernández-Balbuena; Eusebio Bernabéu; Ángel García-Botella; Lucas García-Rodríguez; Wilfried Pohl
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Paper Abstract

The main objective of ADASY (Active Daylighting System) work is to design a façade static daylighting system oriented to office applications, mainly. The goal of the project is to save energy by guiding daylight into a building for lighting purpose. With this approach we can reduce the electrical load for artificial lighting, completing it with sustainable energy. The collector of the system is integrated on a vertical façade and its distribution guide is always horizontal inside of the false ceiling. ADASY is designed with a specific patent pending caption system, a modular light-guide and light extractor luminaire system. Special care has been put on the final cost of the system and its building integration purpose. The current ADASY configuration is able to illuminate 40 m2 area with a 300lx-400lx level in the mid time work hours; furthermore it has a good enough spatial uniformity distribution and a controlled glare. The data presented in this study are the result of simulation models and have been confirmed by a physical scaled prototype. ADASY's main advantages over regular illumination systems are: -Low maintenance; it has not mobile pieces and therefore it lasts for a long time and require little attention once installed. - No energy consumption; solar light continue working even if there has been a power outage. - High quality of light: the colour rendering of light is very high - Psychological benefits: People working with daylight get less stress and more comfort, increasing productivity. - Health benefits

Paper Details

Date Published: 20 August 2009
PDF: 8 pages
Proc. SPIE 7410, Optical Modeling and Measurements for Solar Energy Systems III, 74100H (20 August 2009); doi: 10.1117/12.826841
Show Author Affiliations
Daniel Vázquez-Moliní, Univ. Complutense de Madrid (Spain)
Mario González-Montes, Univ. Complutense de Madrid (Spain)
Antonio Álvarez Fernández-Balbuena, Univ. Complutense de Madrid (Spain)
Eusebio Bernabéu, Univ. Complutense de Madrid (Spain)
Ángel García-Botella, Univ. Politécnica de Madrid (Spain)
Lucas García-Rodríguez, Lledó Iluminación S.A. (Spain)
Wilfried Pohl, Bartenbach Lichtlabor GmbH (Austria)

Published in SPIE Proceedings Vol. 7410:
Optical Modeling and Measurements for Solar Energy Systems III
Benjamin K. Tsai, Editor(s)

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