Methods for the illumination of multilevel buildings with vertical light pipes

Garcia Hansen, Veronica & Edmonds, Ian (2015) Methods for the illumination of multilevel buildings with vertical light pipes. Solar Energy, 117, pp. 74-88.

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This paper examines the feasibility of using vertical light pipes to naturally illuminate the central core of a multilevel building not reached by window light. The challenges addressed were finding a method to extract and distribute equal amounts of light at each level and designing collectors to improve the effectiveness of vertical light pipes in delivering low elevation sunlight to the interior. Extraction was achieved by inserting partially reflecting cones within transparent sections of the pipes at each floor level. Theory was formulated to estimate the partial reflectance necessary to provide equal light extraction at each level. Designs for daylight collectors formed from laser cut panels tilted above the light pipe were developed and the benefits and limitations of static collectors as opposed to collectors that follow the sun azimuth investigated. Performance was assessed with both basic and detailed mathematical simulation and by observations made with a five level model building under clear sky conditions.

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ID Code: 83809
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Multilevel daylighting, light pipes, extractors, laser cut panels, daylight collectors
DOI: 10.1016/j.solener.2015.04.017
ISSN: 0038-092X
Subjects: Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > ARCHITECTURE (120100) > Architectural Science and Technology (incl. Acoustics Lighting Structure and Ecologically Sustainable Design) (120104)
Divisions: Current > Schools > School of Design
Current > QUT Faculties and Divisions > Creative Industries Faculty
Copyright Owner: Copyright 2015 Elsevier Ltd
Copyright Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Solar Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Solar Energy, [VOL 117, (2015)] DOI: 10.1016/j.solener.2015.04.017
Deposited On: 30 Apr 2015 00:40
Last Modified: 27 May 2015 17:03

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