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道路LED灯具评价(最终报告)
This research explores whether LED roadway luminaire technologies are a viable future solution to providing roadway lighting. Roadway lighting enhances highway safety and traffic flow during limited lighting conditions. The purpose of this evaluation study is to determine the feasibility of transitioning from standard high pressure sodium (HPS) roadway luminaire to LED roadway luminaire on the MoDOT maintained highway system. This study includes performance evaluations, a feasibility analysis and a potential transition replacement program.
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LED照明产品的能源和环境影响的生命周期评估。第2部分:LED制造和性能
Part 2 of the project (this report) uses the conclusions from Part 1 as a point of departure to focus on two objectives: producing a more detailed and conservative assessment of the manufacturing process and providing a comparative LCA with other lighting products based on the improved manufacturing analysis and taking into consideration a wider range of environmental impacts. In this study, we first analyzed the manufacturing process for a white-light LED (based on a sapphire-substrate, blue-light, gallium-nitride LED pumping a yellow phosphor), to understand the impacts of the manufacturing process. We then conducted a comparative LCA, looking at the impacts associated with the Philips Master LEDbulb and comparing those to a CFL and an incandescent lamp. The comparison took into account the Philips Master LEDbulb as it is now in 2012 and then projected forward what it might be in 2017, accounting for some of the anticipated improvements in LED manufacturing, performance and driver electronics.
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机场LED灯具使用的一些问题。机场合作研究项目(ACRP)第35项:机场综合实践。
Light-emitting diode (LED) airfield lighting is increasingly used at airports in the United States and abroad. The objective of this synthesis study is to provide documentation about the performance of LED airfield lighting systems, and it is primarily intended for airfield operations managers and airport electrical maintenance staff. Information about LED lighting systems in terms of performance, cost, and other operations issues is not readily found in a single location. This report is an effort to gather information about airport experiences and feedback with LED airfield lighting. A literature review and a survey of individuals representing airports that have experience with LED airfield lighting were conducted. Individuals from 22 airports and aviation agencies agreed to participate in the survey and all 22 completed it (for a 100response rate). In general, the study findings confirm that LED airfield light fixtures reduce energy use and maintenance requirements, compared with conventional airfield lighting technologies. LED airfield lighting systems have been in use for a number of years, and most feedback on their visibility and performance is positive. Early compatibility issues appear to have been largely overcome through technological progress and through efforts of the FAA to address LED technologies in its guidance to airports.
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华盛顿特区史密森美国艺术博物馆LED灯具的改造演示
This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.