Light Distribution in 3D-Printed Thermoplastics
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Author / Producer
Date
2023-12
Publication Type
Journal Article
ETH Bibliography
yes
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Abstract
Daylight distribution is an essential performance parameter for building facades that aim to maximize user comfort while maintaining energy efficiency. This study investigates the feasibility of using 3D-printed thermoplastic to improve daylight distribution and transmission. To identify how geometry influences light distribution and transmission, 12 samples with various patterns were robotically fabricated. In a physical simulation of spring, summer, and winter, a robotic arm was used to direct light onto the samples in both the vertical and horizontal print pattern directions. In addition, three samples of conventional facade materials, including a polycarbonate panel, a polycarbonate sheet, and a single sheet of glass, were compared with the 3D-printed samples. All samples were examined and compared using high dynamic range imaging to qualitatively characterize luminance. The data analysis demonstrated that 3D-printed geometry can successfully generate customizable diffusive light distribution based on the needs of the user. Furthermore, the results showed that the vertical pattern direction had higher light transmission values than the horizontal pattern direction.
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Publication status
published
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Editor
Book title
Journal / series
Volume
10 (6)
Pages / Article No.
1164 - 1177
Publisher
Mary Ann Liebert
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
3D printing; facade; daylight; light distribution; light transmission; pattern
Organisational unit
03709 - Kohler, Matthias / Kohler, Matthias
03708 - Gramazio, Fabio / Gramazio, Fabio
03902 - Schlüter, Arno / Schlüter, Arno
02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
Notes
Funding
141853 - Digital Fabrication - Advanced Building Processes in Architecture (SNF)
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