| Author: | Tsui, Zhong Heng Henry |
| Title: | Investigate an optimization control between daylight and LED lighting in a commercial building |
| Advisors: | Wong, L. T. (BSE) |
| Degree: | M.Eng. |
| Year: | 2019 |
| Subject: | Hong Kong Polytechnic University -- Dissertations LED lighting Commercial buildings -- Lighting Electric lighting -- Energy conservation |
| Department: | Department of Building Services Engineering |
| Pages: | xi, 115 pages : color illustrations |
| Language: | English |
| Abstract: | The electricity consumption in Hong Kong is increasing nowadays. The electricity demand from commercial buildings is also getting higher. Many systems in buildings needs lots of energy such as air-conditioning system, lighting system, water supply system. Energy saving is one of the important issues to be concerned in this society. Since many wastes will produce when the energy is generating. Green environment is also another important issue being concerned nowadays. At the same time, the energy used in lighting system is one of the major components of total energy consumption in commercial building. Many building owners change to use LED light (Light emit dioxide) instead of traditional lighting such as fluorescent lamp. Since LED light is the most energy efficient. This paper will focus on a commercial building which changed the lighting system (from fluorescent lamp to LED lamp) a year ago and it is controlled by a smart control panel. The LED lighting will cooperate with the existence of daylight. The energy used for LED light and the comparison between LED and fluorescent lamp are described. Moreover, after the changes of lighting system, the occupants' satisfaction is also an important issue to focus. An optimization control will be carried out based on the occupants' satisfaction. The luminous lux level in each area are also presented. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991022370851203411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 7.78 MB | Adobe PDF | View/Open |
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