A field study of fluorescent and LED classroom lighting

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Indoor lighting is facing a massive retrofit to LED lighting. Research is needed to assess whether LED-based lighting can promote energy efficiency, boost visual comfort and support biological functions. This field study considered the lighting of four identical classrooms in an upper secondary school in Helsingborg, Sweden. Two classrooms were fitted with state-of-the-art ceiling pendants containing T5 fluorescent tubes and that had a direct/indirect light distribution (the control rooms). The other two classrooms were fitted with an experimental LED indirect lighting system (the experimental rooms). In the classrooms, 72 students aged 17–18 years performed their usual educational activities over a whole academic year. The light environment, electricity consumption, and students’ mood, light perception and saliva cortisol concentration were monitored. The two lighting systems produced only marginal differences. Overall, the experimental rooms were slightly preferred but achieved only small energy savings due to high parasitic losses.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Svensk Ljusfakta
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Arkitekturteknik
  • Tillämpad psykologi

Nyckelord

Originalspråkengelska
Sidor (från-till)631-653
Antal sidor23
TidskriftLighting Research and Technology
Volym50
Utgivningsnummer4
Tidigt onlinedatum2016 okt 25
StatusPublished - 2018 jun 1
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Niko Gentile, 2017 okt 27, Lund: Division of Energy and Building Design. 298 s.

Forskningsoutput: AvhandlingDoktorsavhandling (sammanläggning)

Niko Gentile & Thorbjörn Laike, 2015 mar 1, LYS, s. 28-29.

Forskningsoutput: Bidrag till övrig tidskrift/dags- eller nyhetstidningDagstidnings-/nyhetsartikel

Niko Gentile, 2015, Lund University, Faculty of Engineering. 170 s.

Forskningsoutput: AvhandlingLicentiatavhandling

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