Testing the predictive power of visual discomfort from glare metrics in the near-window and near-wall zones of the daylit classroom environment

Conference paper (2019)

Authors

R.J. Abreu Vieira Viula Building Physics - Architecture and the Built Environment
G.J. Hordijk Building Physics - Architecture and the Built Environment
Research Group
Building Physics (Architecture and the Built Environment) (TU Delft)
Copyright: © 2019 R.J. Abreu Vieira Viula, G.J. Hordijk
DOI: https://doi.org/10.25039/x46.2019.OP40
More Info
expand_more

Published Date

2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Architecture and the Built Environment

Department

Architectural Engineering +Technology

Research Group

Building Physics

Abstract

The objective of the present study was to find how well a group of selected luminance-based metrics predict reported visual discomfort from daylight glare in spatial conditions that differ from the conditions where metrics tend to developed and validated for. An empirical study involving the assessment of visual discomfort from glare by n=50 subjects (n=185 cases) in a daylit-only classroom space was carried out to investigate this problem. It was found that the glare indexes were the most robust metrics predicting reported glare. However, as all metrics failed most of the statistical tests in the near-wall zone of the classroom, it can be said that none of the metrics was able to predict with enough accuracy the glare reported across the space. Indeed, the metrics show a very poor performance in the sitting positions away from the window, an aspect that requires further investigation.

Files

X046_OP40.pdf
(pdf | 1.12 Mb)
Unknown license