Lighting and energy performance for an office using high frequency dimming controls

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

128 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1133-1145
Journal / PublicationEnergy Conversion and Management
Volume47
Issue number9-10
Publication statusPublished - Jun 2006

Abstract

Artificial lighting is one of the major electricity consuming items in many non-domestic buildings. Recently, there has been an increasing interest in incorporating daylight in architectural and building designs to reduce the electricity use and enhance greener building developments. This paper presents field measurements for a fully air conditioned open plan office using a photoelectric dimming system. Electric lighting load, indoor illuminance levels and daylight availability were systematically measured and analyzed. The general features and characteristics of the results such as electric lighting energy savings and transmitted daylight illuminance in the forms of frequency distributions and cumulative frequency distributions are presented. Daylighting theories and regression models have been developed and discussed. It has been found that energy savings in electric lighting were over 30% using the high frequency dimming controls. The results from the study would be useful and applicable to other office spaces with similar architectural layouts and daylight linked lighting control systems. © 2005 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Daylight availability, Energy savings, Frequency distribution, High frequency dimming controls, On-off controls

Citation Format(s)

Lighting and energy performance for an office using high frequency dimming controls. / Li, Danny H.W.; Lam, Tony N.T.; Wong, S. L.
In: Energy Conversion and Management, Vol. 47, No. 9-10, 06.2006, p. 1133-1145.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review