Conference article

A Model Study of the Daylight and Energy Performance of Rooms Adjoining an Atrium Well

Jiangtao Du
School of Architecture, University of Sheffield, Sheffield, UK

Steve Sharples
School of Architecture, University of Liverpool, Liverpool, UK

Neil Johnson
School of Architecture, University of Sheffield, Sheffield, UK

Download articlehttp://dx.doi.org/10.3384/ecp110571906

Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:22, p. 1906-1913

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Published: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Daylight has been regarded as a significant environmental advantage of atrium buildings because the natural light can illuminate potentially dark core areas and decrease energy consumption. This study has investigated the average daylight factors (overcast sky conditions) and annual lighting energy load (real weather conditions of Sheffield; UK) in adjoining spaces to assess the fundamental daylight performance and energy performance in an atrium model. Radiance and Daysim (based on Radiance algorithm) were the tools to simulate the daylighting and lighting energy use. A comparison of the measurement and simulation showed the validation of the basic Radiance simulation in the model. In terms of the well façades (decided by the ratio of window area to solid wall area) and well surface reflectance; the variations of daylight level and annual electrical lighting use in the adjoining rooms have been analysed and some design strategies for supporting preliminary design decisions are presented. Only the square atrium model and relatively simple climate conditions have been considered in the investigation.

Keywords

Atrium Building; Daylight Performance; Lighting Energy Saving; Simulation

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