| Abstract |
This thesis designs a LED illumination dimming system to meet the requirement of campus, and carried out the economic analysis for the designed system to understand its energy-saving efficiency. This designed LED illumination system includes 3 subsystems. The first subsystem is for teaching area’s lighting, which is mainly for the daytime lighting. The data of classroom environment, lighting illumination, and number of people are considered to design a dimming method for matching human comfort and increasing efficiency. The second subsystem is for road area’s lighting mainly for the nighttime lighting. Except reaching the goal of energy-saving and carbon reduction, it also needs to consider safety. Therefore, the subsystem will activate LED lighting while vehicle passing through, and maintain a minimum illumination without any vehicle or people. The third subsystem is for parking lot’s lighting, which is mainly for the nighttime lighting. Due to most of people temporarily park their vehicles or take a rest, talk and walk here rather than reading, it only needs to maintain a certain standard illumination to keep people and vehicle’s safety in this area. Although LED illumination can save energy, its prices are higher than traditional lighting equipment. Therefore, except designing and testing the designed LED illumination system, the total cost of energy-saving and LED lighting are analyzed to conduct economic analysis. The economic benefits including return on investment can be then recognized. An actual campus is used to test the designed of LED illumination system, and analyze its economic benefits. The design experiences obtained in the thesis will be a good reference for campuses trying to use LED illumination system in the future. |
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