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Lighting control systems in individual offices at high latitude: measurements of electricity savings and users preferences

Gentile, Niko LU ; Laike, Thorbjörn LU and Dubois, Marie-Claude LU (2014) ISES Solar World Congress, 2013 57. p.1987-1996
Abstract
Abstract in Undetermined
An efficient lighting control systems (LCS) should take advantage of the natural light available, but this presents some technical challenges as well as user related issues. So far, the assessment of lighting energy consumption of LCS has been based on technical features rather than the occupants’ acceptance.

This article presents the results of a monitoring study providing some recommendations based on the human and technical aspects of LCS in small scale applications.

Four identical peripheral office rooms located in Lund, Sweden, were equipped with four different LCS: manual switch at the door, presence detector, daylight dimming with absence detector and LED task lamp. Each occupant... (More)
Abstract in Undetermined
An efficient lighting control systems (LCS) should take advantage of the natural light available, but this presents some technical challenges as well as user related issues. So far, the assessment of lighting energy consumption of LCS has been based on technical features rather than the occupants’ acceptance.

This article presents the results of a monitoring study providing some recommendations based on the human and technical aspects of LCS in small scale applications.

Four identical peripheral office rooms located in Lund, Sweden, were equipped with four different LCS: manual switch at the door, presence detector, daylight dimming with absence detector and LED task lamp. Each occupant performed ordinary office tasks for two weeks in each room in April-May 2013. A subjective evaluation concerning the general lighting experience and the appreciation of the LCS was carried out.

The results indicate that the manual switch was greatly appreciated and it accomplished good energy performances (75% savings compared to the presence detector). The daylight-linked LCS achieved only slightly higher savings (79%), due to relatively high parasitic losses, but did not guarantee an optimal light environment. The desk lamp achieved 97% savings, but the lighting conditions were considered unacceptable by the office workers. In general, the participants in this study perceived all automatic controls as stressful. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
human factor, Lighting control systems, daylight-linked system, energy saving.
host publication
Energy Procedia
volume
57
pages
9 pages
publisher
Elsevier
conference name
ISES Solar World Congress, 2013
conference location
Cancun, Mexico
conference dates
2013-11-03 - 2013-11-07
external identifiers
  • wos:000348253202012
  • scopus:84922334342
ISSN
1876-6102
DOI
10.1016/j.egypro.2014.10.063
project
Robust control systems for electric lighting: inventory of existing technology, laboratory tests and field studies
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Environmental Psychology (011036009), Energy and Building Design (011038110)
id
01cda035-d90f-403f-a129-186133f651c8 (old id 4358586)
date added to LUP
2016-04-01 15:03:11
date last changed
2021-09-22 02:03:03
@inproceedings{01cda035-d90f-403f-a129-186133f651c8,
  abstract     = {Abstract in Undetermined<br/>An efficient lighting control systems (LCS) should take advantage of the natural light available, but this presents some technical challenges as well as user related issues. So far, the assessment of lighting energy consumption of LCS has been based on technical features rather than the occupants’ acceptance.<br/><br/>This article presents the results of a monitoring study providing some recommendations based on the human and technical aspects of LCS in small scale applications.<br/><br/>Four identical peripheral office rooms located in Lund, Sweden, were equipped with four different LCS: manual switch at the door, presence detector, daylight dimming with absence detector and LED task lamp. Each occupant performed ordinary office tasks for two weeks in each room in April-May 2013. A subjective evaluation concerning the general lighting experience and the appreciation of the LCS was carried out.<br/><br/>The results indicate that the manual switch was greatly appreciated and it accomplished good energy performances (75% savings compared to the presence detector). The daylight-linked LCS achieved only slightly higher savings (79%), due to relatively high parasitic losses, but did not guarantee an optimal light environment. The desk lamp achieved 97% savings, but the lighting conditions were considered unacceptable by the office workers. In general, the participants in this study perceived all automatic controls as stressful.},
  author       = {Gentile, Niko and Laike, Thorbjörn and Dubois, Marie-Claude},
  booktitle    = {Energy Procedia},
  issn         = {1876-6102},
  language     = {eng},
  pages        = {1987--1996},
  publisher    = {Elsevier},
  title        = {Lighting control systems in individual offices at high latitude: measurements of electricity savings and users preferences},
  url          = {http://dx.doi.org/10.1016/j.egypro.2014.10.063},
  doi          = {10.1016/j.egypro.2014.10.063},
  volume       = {57},
  year         = {2014},
}