Detection and acceptance of demand-responsive lighting in offices with and without daylight

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TypeArticle
Journal titleLeukos
Volume4
IssueJanuary 3
Pages130156; # of pages: 27
Subjectdemand response, load shedding, energy management, comfort; Lighting
AbstractThis research investigated the tolerance of office workers for decreased illumination levels. The purpose was to assess the dimming that could be tolerated to reduce electricity demand during periods of grid stress without major inconvenience to workers. Participants (N=33) in an office laboratory were exposed to an initial baseline electric lighting level of 400 lx on their desktops. The electric lighting was dimmed smoothly over 10 seconds. During the dim, and for 30 seconds afterwards, the participants performed a computer-based proofreading task. The participants indicated if they had noticed the change, and whether the lighting conditions were acceptable. This was repeated over multiple trials, with dimming from 0 to 80%, and with or without daylight.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number50324
19565
NPARC number20377318
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Record identifier7cef83f0-7e0e-406a-9693-85a4f0d31ad2
Record created2012-07-24
Record modified2016-05-09
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