Useful daylight illuminances: a replacement for daylight factors

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dc.contributor.author Mardaljevic, John
dc.contributor.author Nabil, A.
dc.date.accessioned 2009-03-26T15:35:20Z
dc.date.available 2009-03-26T15:35:20Z
dc.date.issued 2006-07-01
dc.identifier.citation Mardaljevic, J. and Nabil, A. (2006) Useful daylight illuminances: A replacement for daylight factors. Energy and Buildings, 38 (7), pp. 905-913. en
dc.identifier.issn 0378-7788
dc.identifier.uri http://hdl.handle.net/2086/1457
dc.description The Useful Daylight Illuminances (UDI) paper proved to be a significant factor in the decision of the CIBSE to support the formulation of climate-based measures of daylight to replace the 50 year old overcast sky paradigm (ie daylight factors). The CIBSE have offered a substantive direct contribution towards an EPSRC research proposal that will formulate the new guidelines for daylighting of non-domestic buildings. That proposal is currently under review (Mardaljevic is the PI). The UDI paper also led to an invitation for Mardaljevic to join the British Standards Institute (BSI Panel for the revision of BS 8206-2 Lighting for Buildings - Code of Practice for Daylighting). The revision of BS 8206-2 will contain a Technical Annex on "Climate-Based Daylight Modelling" (authored by Mardaljevic) which was derived from the UDI paper. The BSI are also supporting the aforementioned EPSRC proposal. Additionally, the UDI scheme has been the focus of debates in the US (eg in "Emerging Daylight Metrics" at Lightair International 2007) where the daylight factor basis of LEED is recognised as a major shortcoming. The UDI scheme has been included in the DAYSIM software produced by the National Research Council of Canada. The UDI paper was written by Mardaljevic based on work by Nabil, an RA in the IESD, line-managed by Mardaljevic and previously, as a PhD student, under his supervision. en
dc.language.iso en en
dc.publisher Energy and Buildings en
dc.subject RAE 2008 en
dc.subject UoA 30 Architecture and the Built Environment en
dc.title Useful daylight illuminances: a replacement for daylight factors en
dc.type Article en
dc.identifier.doi http://dx.doi.org/10.1016/j.enbuild.2006.03.013
dc.researchgroup Institute of Energy and Sustainable Development


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