Paper Conference

Proceedings of ASim Conference 2014: 2nd Asia conference of IBPSA-China, Japan, Korea


Energy Efficiency Lighting for Buildings – Experiments on occupant behavior and visual comfort on a test bed in a university campus office

Yiqun Pan, Yuan Yao, Dandan Cai, Zhizhong Huang, Nobert Linder

Abstract: How much electricity lighting system consumes is up to number of factors, for instance architecture design, glazing specifications, light source, and so on. In order to improve lighting efficiency even more, proper control strategies are necessary to be applied. In which occupant behavior and visual comfort perception have to be considered at the same time. This article is about a study on energy performance of various lighting systems and control strategies applied in open-plan offices. All the experiments were carried out on a test bed which is located on Tongji University, Shanghai. This test bed can realize various control strategies, including daylight linked dimming control and on/off control by occupancy detection. Data of illuminance and power is monitored, displayed and recorded automatically by an online data acquisition system. Online tests were conducted on various lighting control strategies for a period of time and the energy use is compared to that of the lighting system in the baseline office. The energy saving potential of various lighting control strategies is simulated and analyzed. Moreover, a combined lighting control strategy - background dimming lighting + task lighting is studied on the test bed. Occupant behavior and visual comfort are investigated in order to find out the optimal background dimming lighting illumination and energy performance of the combined lighting system is evaluated.
Keywords: Lighting control strategy, building energy conservation, occupant behavior, task lighting
Pages: 682 - 689