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Daylight utilisation in perimeter office rooms at high latitudes: Investigation by computer simulation

Dubois, Marie-Claude LU and Flodberg, Kajsa LU (2013) In Lighting Research and Technology 45(1). p.52-75
Abstract
A simulation study of daylight autonomy in perimeter office rooms at high latitudes is presented where the following variables are studied: Glazing-to-wall ratios (GWR), climate, orientation, inner surface reflectance, glazing visual transmittance, Venetian blind management and electric lighting dimming and switching systems. Based on daylight utilisation alone, the results indicate an optimal GWR ranging between 20% and 40%, with a North orientation requiring a larger GWR (40%), a South orientation a smaller GWR (20%) and an East/West orientation an intermediate GWR (30%). The reflectance of inner surfaces has a significant effect on daylight autonomy and the use of low transmittance glazing demands a larger GWR (60%) to achieve the same... (More)
A simulation study of daylight autonomy in perimeter office rooms at high latitudes is presented where the following variables are studied: Glazing-to-wall ratios (GWR), climate, orientation, inner surface reflectance, glazing visual transmittance, Venetian blind management and electric lighting dimming and switching systems. Based on daylight utilisation alone, the results indicate an optimal GWR ranging between 20% and 40%, with a North orientation requiring a larger GWR (40%), a South orientation a smaller GWR (20%) and an East/West orientation an intermediate GWR (30%). The reflectance of inner surfaces has a significant effect on daylight autonomy and the use of low transmittance glazing demands a larger GWR (60%) to achieve the same daylight autonomy as 20% GWR with high transmittance glazing. Also, the results indicate that the choice of electric lighting dimming and switching systems has a more significant impact on electricity use than the GWR, orientation and the other variables examined. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Lighting Research and Technology
volume
45
issue
1
pages
52 - 75
publisher
SAGE Publications
external identifiers
  • wos:000314375900006
  • scopus:84873054961
ISSN
1477-1535
DOI
10.1177/1477153511428918
language
English
LU publication?
yes
id
953e298c-7b4a-436e-9f4e-a2f9b7844194 (old id 3590258)
date added to LUP
2016-04-01 09:51:40
date last changed
2022-03-19 07:02:52
@article{953e298c-7b4a-436e-9f4e-a2f9b7844194,
  abstract     = {{A simulation study of daylight autonomy in perimeter office rooms at high latitudes is presented where the following variables are studied: Glazing-to-wall ratios (GWR), climate, orientation, inner surface reflectance, glazing visual transmittance, Venetian blind management and electric lighting dimming and switching systems. Based on daylight utilisation alone, the results indicate an optimal GWR ranging between 20% and 40%, with a North orientation requiring a larger GWR (40%), a South orientation a smaller GWR (20%) and an East/West orientation an intermediate GWR (30%). The reflectance of inner surfaces has a significant effect on daylight autonomy and the use of low transmittance glazing demands a larger GWR (60%) to achieve the same daylight autonomy as 20% GWR with high transmittance glazing. Also, the results indicate that the choice of electric lighting dimming and switching systems has a more significant impact on electricity use than the GWR, orientation and the other variables examined.}},
  author       = {{Dubois, Marie-Claude and Flodberg, Kajsa}},
  issn         = {{1477-1535}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{52--75}},
  publisher    = {{SAGE Publications}},
  series       = {{Lighting Research and Technology}},
  title        = {{Daylight utilisation in perimeter office rooms at high latitudes: Investigation by computer simulation}},
  url          = {{http://dx.doi.org/10.1177/1477153511428918}},
  doi          = {{10.1177/1477153511428918}},
  volume       = {{45}},
  year         = {{2013}},
}