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Results from the Integrated Performance Appraisal of Daylight-Europe Case Study Buildings
J A Clarke, J, W Hand, M Janak
Energy Systems Research Unit, University of Strathclyde, James
Weir Building Glasgow G1 1XJ, UK
Tel: +44 141 548 3986, Fax: +44 141 552 8513, email: esru@strath.ac.uk
http://www.strath.ac.uk/Departments/ESRU
ABSTRACT
The Daylight-Europe (DL-E) project set out to produce design guidelines for practitioners wishing to incorporate daylight utilisation principles within buildings as a means to displacethe electrical power consumption associated with artificial lighting. The intention was to produce these guidelines in an architect-relevant format, where notable examples are used to illustrate the operational and integration aspects of the different possible approaches, and in an engineer-relevant format, where the approaches are quantified using metrics such as daylight factor distribution, discomfort glare indices and electrical power savings.
This paper describes the simulation method used in support of the latter deliverable and summarises the results obtained when the method was applied to several existing buildings incorporating different daylight utilisation technologies. For each case studied, performance has been assessed in terms of HVAC and electrical system capacities, fuel consumptions, environmental emissions, thermal and visual comfort and glare sources.
Keywords: Daylight-Europe project; daylight utilisation in buildings; integrated performance appraisal.
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