cie-ec-sim-mix-0.1.pdf (1.57 MB)
Neutral daylight illumination with electrochromic glazing: simulation of ‘light mixing’
conference contribution
posted on 2016-01-11, 11:33 authored by John MardaljevicJohn Mardaljevic, Ruth Kelly Waskett, Birgit PainterElectrochromic glazing generally exhibits a shift in spectral transmission as the glass darkens, e.g. causing it to appear blue as it tints. Occupants however are believed to prefer a neutral spectrum of daylight illumination without any pronounced hue. In this paper the authors show that it is
possible to maintain a neutral spectrum of illumination with EC glazing under normal operation provided that just a small proportion of the EC glazing is kept in the clear state. Predictions from a theoretical model are compared with measurements of the daylight spectra in an office with EC glazing under various states of tint. The predicted spectra show excellent agreement with the measurements. The theoretical model is further validated using lighting simulation to demonstrate that, under normal operation, illumination from clear and full-tint EC is well-mixed, with that from
clear glazing dominating the overall illumination.
History
School
- Architecture, Building and Civil Engineering
Published in
CIE 28th SessionCitation
MARDALJEVIC, J., KELLY WASKETT, R. and PAINTER, B., 2015. Neutral daylight illumination with electrochromic glazing: simulation of ‘light mixing’. Presented at: The 28th Session of the International Commission on Illumination (CIE 2015), 28th June-4th July 2015, Manchester.Publisher
© Commission Internationale de l'EclairageVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015Notes
This is a conference paper.Publisher version
Language
- en