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http://dx.doi.org/10.14695/KJSOS.2015.18.2.45

A Study on Evaluation of LED Lighting Environments for Energy Saving and Work Effectiveness  

Kim, Hyung-Sun (Green Energy Technology Research Center)
Lim, Jae-Hyun (Department of Computer Science and Engineering, Kongju National University)
Lee, Kee-Sun (Division of Advanced Materials Engineering, Kongju National University)
Kim, Kil-Hee (Department of Architectural Engineering, Kongju National University)
Jung, Hee-Chang (Department of Urology, Yeungnam University Hospital)
Kim, Jin Ho (Department of Industrial and System Engineering, Kongju National University)
Publication Information
Science of Emotion and Sensibility / v.18, no.2, 2015 , pp. 45-54 More about this Journal
Abstract
This study carried out an experiment to identify subject's work effectiveness and energy saving effect using LED light. Towards this end, this study configured nine various lighting environments in order to control PWM (Pulse Width Modulation) and illuminance (lux), which are the characteristics of LED light. The PWM ratio of LED light was set as R:G:B=1:1:1, R:G:B=4:1:5, and R:G:B=8:7:7, respectively, and illuminance (lux) was set as 400 lx, 700 lx, and 1000 lx, respectively. In addition, the indoor environment was set temperature $20-24^{\circ}C$, humidity 50%-60%, and the amount of clothing 1. This study analyzed work effectiveness and energy consumption in nine lighting environments, each. Error correction was performed for work effectiveness analysis, and cumulative power consumption was measured in each lighting environment for energy consumption analysis. According to experiment results through the lighting environments suggested in this study, accuracy and spent time effectiveness were good in 700lux and higher than 400lux. For spent time, the best effectiveness was revealed in the suggested PWM ratio, R:G:B=8:7:7. The lowest power consumption on each illuminance (lux) was revealed in the order of R:G:B=8:7:7, RGB=1:1:1, and R:G:B=4:1:5. Therefore, pulse-width modulation effect is proposed in this paper was found to affect the efficiency and energy saving.
Keywords
pulse width modulation; illuminance; energy saving;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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