Next Article in Journal
Establishing Priorities for Sustainable Environmental Design in the Rural Villages of Yunnan, China
Next Article in Special Issue
Side-View Atmospheres under Outdoor Midday High Luminance
Previous Article in Journal
Assessing the Play Provisions for Children in Urban Neighborhoods of India: Case Study Nagpur, Maharashtra
Article Menu

Export Article

Open AccessArticle
Buildings 2016, 6(3), 30; doi:10.3390/buildings6030030

Accordance of Light Scattering from Design and De-Facto Variants of a Daylight Redirecting Component

1
Competence Center Envelopes and Solar Energy, Lucerne University of Applied Sciences and Arts, 6048 Horw, Switzerland
2
Faculty of Architecture, Technische Universität Darmstadt, 64287 Darmstadt, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Yuehong Su
Received: 3 June 2016 / Revised: 27 July 2016 / Accepted: 12 August 2016 / Published: 18 August 2016
View Full-Text   |   Download PDF [21368 KB, uploaded 18 August 2016]   |  

Abstract

For the systematic development of a small-scale daylight-redirecting louver system the impact of manufacturing on light scattering characteristics has to be quantified, localized and understood. In this research, the accordance of the measured scattering distributions of a de-facto production sample V1 with the computed predictions based on its design geometry V2 are quantified for selected incident light directions. A metric describing the global accordance of distributions is adapted to quantify their overall difference. A novel metric of local accordance allows further analysis. A particular low global accordance between V1 and V2 is found for an incident elevation θ i = 35 . To test the hypothesis that this result can be explained by observed geometric deviations, a simulation model V3 replicating these is compared to the design. The hypothesis is supported by the resulting high degree of accordance. The low local accordance for individual outgoing light directions indicates geometric non-uniformity of the sample V1. This method has been found useful for product development and quality assurance. Beyond their application in the proposed method, global and local accordance have potential applications in all fields of light scattering measurements. View Full-Text
Keywords: daylight redirection; BSDF; light scattering; simulation; goniophotometry; manufacturing deviation; quality assurance daylight redirection; BSDF; light scattering; simulation; goniophotometry; manufacturing deviation; quality assurance
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Noback, A.; Grobe, L.O.; Wittkopf, S. Accordance of Light Scattering from Design and De-Facto Variants of a Daylight Redirecting Component. Buildings 2016, 6, 30.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Buildings EISSN 2075-5309 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top