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Lighting Energy Sav...
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von Wachenfelt, HansSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi,Department of Biosystems and Technology
(författare)
Lighting Energy Saving with Light Pipe in Farm Animal Production
- Artikel/kapitelEngelska2015
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:b9486f79-53d0-4e35-ad2f-f139dcbed272
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https://lup.lub.lu.se/record/7864645URI
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https://doi.org/10.15627/jd.2015.5DOI
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https://res.slu.se/id/publ/68542URI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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The Swedish animal production sector has potential for saving electric lighting of €4-9 million per year using efficient daylight utilisation. To demonstrate this, two light pipe systems, Velux® (house 1) and Solatube® (house 2), are installed in two identical pig houses to determine if the required light intensity, daylight autonomy (DA), and reduced electricity use for illumination can be achieved. In each house, three light sensors continuously measure the indoor daylight relative to an outdoor sensor. If the horizontal illuminance at pig height decreases below 40 lux between 08.00 and 16.00 hours, an automatic control system activates the lights, and electricity use is measured.. The daylight factor (DF) and DA are determined for each house, based on annual climate data. The mean annual DA of 48% and 55% is achieved for house 1 and house 2, respectively. Light pipes in house 2 have delivered significantly more DA than those in house 1. The most common illuminance range between 0 and 160 lux is recorded in both houses, corresponding to approximately 82% and 83% of daylight time for house 1 and house 2, respectively. Further, the daylighting system for house 2 has produced a uniform DF distribution between 0.05 and 0.59. The results demonstrate that considerable electric energy savings can be achieved in the animal production sector using light pipes. Saving 50% of electric lighting would correspond to 36 GWh or 2520 t CO2 per year for Sweden, but currently the energy savings are not making the investment profitable.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Vakouli, Vaia
(författare)
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Pacheco Diéguez, Alejandro
(författare)
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Gentile, NikoLund University,Lunds universitet,Institutionen för arkitektur och byggd miljö,Institutioner vid LTH,Lunds Tekniska Högskola,Avdelningen för Energi och byggnadsdesign,Institutionen för bygg- och miljöteknologi,Department of Architecture and Built Environment,Departments at LTH,Faculty of Engineering, LTH,Division of Energy and Building Design,Department of Building and Environmental Technology,Faculty of Engineering, LTH(Swepub:lu)arki-ngi
(författare)
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Dubois, Marie-ClaudeLund University,Lunds universitet,Institutionen för arkitektur och byggd miljö,Institutioner vid LTH,Lunds Tekniska Högskola,Avdelningen för Energi och byggnadsdesign,Institutionen för bygg- och miljöteknologi,Department of Architecture and Built Environment,Departments at LTH,Faculty of Engineering, LTH,Division of Energy and Building Design,Department of Building and Environmental Technology,Faculty of Engineering, LTH(Swepub:lu)bkl-mcd
(författare)
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Jeppsson, Knut-HåkanSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi,Department of Biosystems and Technology(Swepub:slu)46727
(författare)
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Sveriges lantbruksuniversitetBiosystem och teknologi
(creator_code:org_t)
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Sveriges lantbruksuniversitet
Sammanhörande titlar
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Ingår i:Journal of Daylighting: SolarLits2:2, s. 21-312383-8701
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