Analysis and prediction of daylighting and energy performance in atrium spaces using daylight-linked lighting controls

Stanley K.H. Chow, Danny H.W. Li, Eric W.M. Lee and Joseph C. Lam

Applied Energy, 2013, vol. 112, issue C, 1016-1024

Abstract: In subtropical Hong Kong, a certain amount of electricity is used to create visually comfortable interior spaces through electric lighting, which is the second major electricity-consuming item in commercial buildings, accounting for 20–30% of total electricity use. The burning of fossil fuels for electricity generation has many adverse effects on the environment. Daylighting is an important and useful strategy for enhancing visual comfort and reducing the need for the electricity consumed by light fittings. The rational use of daylight through tools such as photoelectric lighting controls can effectively reduce buildings’ electricity consumption and the related pollutants and greenhouse gas emissions. Daylighting design techniques are often best demonstrated via field measurements that provide reliable operational and energy performance data for establishing design guidelines. An atrium provides an environmentally controlled indoor public space that introduces daylight into the hearts of large buildings. In circulation areas such as corridors, people expect the way ahead to be sufficiently lit and daylight-linked lighting controls can deliver excellent energy savings. This paper presents the daylighting and energy performance of an atrium space using daylight-linked lighting controls. The cost, energy and environmental issues related to various daylight illuminances are estimated and design implications are discussed.

Keywords: Atrium; Daylight; Greenhouse gases; Daylight-linked lighting controls; Energy savings (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (18)

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DOI: 10.1016/j.apenergy.2012.12.033

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