Influence of geometrical and optical building parameters on the circadian daylighting of an office

Potočnik, Jaka (author), Košir, Mitja (author)

An average working individual in today's society spends a considerableamount of a typical day in an office environment. This, in turn,can negatively influenceher or his circadian systemif the indoor builtenvironment is not designed to provide adequate luminous conditions. Therefore, the presented paper's main objectivewas to address the extent to whichindoor built environmentparametersinfluence the characteristics of the indoornon-visual and visualluminousenvironment.To answer the stated question,a statistical analysis of parametric simulationsusing multispectral software ALFAwas carried outfora sample cellular office in Ljubljana, Slovenia.The influence ofroom, geometrical(depth, width,andwindow to wall ratio),and optical (reflectance of walls, ceiling, and floor and glazing transmissivity) parameterswasstudied for four cardinaloccupantviewdirections. The results show thatthe windowis the most influential building element as the windowto wall ratio and glazing transmissivityare the most influential geometricaland optical parameters. However, it was exposedthatthisis not entirely true for occupant positionsdeeper in space and facing away from the window, as the influence of all studied building parameters changes according to theview orientation and positionin relation to the window.

• Language: English
• Keywords: daylighting, circadian daylighting, indoor lighting environment, photobiology, healthy lighting
• Work type: Scientific work
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: 19 str.
• Numbering: Vol. 42, art. 102402
• PID: 20.500.12556/RUL-127174
• UDC: 620.9:697:699.8(045)
• ISSN on article: 2352-7102
• DOI: 10.1016/j.jobe.2021.102402
• COBISS.SI-ID: 59477507
• Publication date in RUL: 21.05.2021

Record is a part of a journal

• Title: Journal of building engineering
• Publisher: Elsevier
• ISSN: 2352-7102
• COBISS.SI-ID: 525380633

Secondary language

• Language: Slovenian
• Keywords: dnevna osvetljenost, cirkadiana dnevna osvetljenost, notranje svetlobno okolje, fotobiologija, zdrava osvetljenost

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0158
• Name: Gradbene konstrukcije in gradbena fizika