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Author Farahat, A.; Florea, A.; Martinez Lastra, J.L.; Branas, C.
Title Energy Efficiency Considerations for LED-based Lighting of Multipurpose Outdoor Environments Type Journal Article
Year 2015 Publication IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensingournal of Emerging and Selected Topics in Power Electronics Abbreviated Journal IEEE J. Emerging and Sel. Topics in Power Elec.
Volume PP Issue 99 Pages 1
Keywords Lighting; LED lighting; LED; optimization; lighting technology; lighting design; energy; energy efficiency
Abstract Nowadays street lighting accounts for 53% of outdoor lighting use and the market is continuously increasing. In the context of rising energy prices and growing environmental awareness, energy efficiency is becoming one of the most important criteria for street lighting systems design. LED-based lights have become the primary option for replacing conventional light bulbs, being digitally controllable, small, highly efficient, and cheap to manufacture. Advanced control strategies adapted to ambient conditions are needed to combine low energy consumption and high quality light ambience according to changing specifications. This paper describes an outdoor lighting solution aimed at energy efficient performance in the context of multipurpose outdoor environments, where control is crucial in achieving efficiency improvements. The work addresses efficiency at the component level, by optimizing the performance of LED drivers, and at system level, defining the control strategy and associated hardware infrastructure. The approach designed was tested in a real environment. The performance of the lighting installation was assessed using the web-based monitoring application, providing real-time consumption information and aggregated historical data.
Address University of Technology, Tampere, Finland.(Email: ahmed.amr.b@gmail.com)
Corporate Author Thesis
Publisher IEEE Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2168-6777 ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number IDA @ john @ Serial 1205
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Author Smalling, R.; Enright, J.
Title A Crusade on HSP Amber High Mast Yields Green with Plasma Type Journal Article
Year 2015 Publication Energy Abbreviated Journal Energy Engr.
Volume 112 Issue 5 Pages 12-17
Keywords Lighting; Energy; lighting technology; light-emitting plasma; lighting transition; LEP; Washington
Abstract Naval Facilities Engineering Command Northwest (NAVFAC NW) Public Works Department (PWD) Everett recently completed a lighting replacement project at Naval Station (NS) Everett, Washington, utilizing a utility energy service contract (UESC) with Bonneville Power Administration (BPA). The project replaced 74 high pressure sodium (HPS) light fixtures with modern energy saving, light-emitting plasma (LEP) fixtures atop 80-foot light poles along the piers and wharf at NS Everett. The no-glare LEP bulbs last twice as long while using less than half the power of their HPS predecessors. This project was completed at a cost of $160,000 and will result in cost avoidances in annual operating and maintenance of over $16,000, with a payback under 10 years. This UESC-financed and executed project saves one percent of the total shore energy consumption cost. Through similar efficiency projects and energy conservation efforts, NS Everett has reduced power usage by 16 percent in the past year and 40 percent since 2003.
Address 2000 West Marine View Drive, Bldg 2000, Rm 242 Everett, WA 98207
Corporate Author Thesis
Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number IDA @ john @ Serial 1219
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Author Bellia, L.; Seraceni, M.
Title A proposal for a simplified model to evaluate the circadian effects of light sources Type Journal Article
Year 2014 Publication Lighting Research and Technology Abbreviated Journal Lighting Research and Technology
Volume 46 Issue 5 Pages 493-505
Keywords Lighting
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1477-1535 ISBN Medium
Area Expedition Conference
Notes (up) Approved no
Call Number LoNNe @ schroer @ Serial 571
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Author Cinzano, P.
Title Technical Measures for an effective limitation of the effects of light pollution. Type Journal Article
Year 2002 Publication Abbreviated Journal
Volume Issue Pages
Keywords Lighting
Abstract
Address
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Publisher Place of Publication Editor
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Area Expedition Conference
Notes (up) Approved no
Call Number LoNNe @ schroer @ Serial 574
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Author Cinzano, P.; Javier, F.; Castro, D.; Astronomia, D.; Padova, U.
Title The artificial sky luminance and the emission angles of the upward light flux. Type Journal Article
Year 1998 Publication arXiv preprint astro-ph Abbreviated Journal
Volume Issue Pages
Keywords Lighting
Abstract The direction of the upward light emission has different polluting effects on the sky depending on the distance of the observation site. We studied with detailed models for light pollution propagation the ratio (bH)/(bL), at given distances from a city, between the artificial sky luminance bH produced by its upward light emission between a given threshold angle θ0 and the vertical and the artificial sky luminance bL produced by its upward light emission between the horizontal and the threshold angle θ0. Our results show that as the distance from the city increases the effects of the emission at high angles above the horizontal decrease relative to the effects of emission at lower angles above the horizontal. Outside some kilometers from cities or towns the light emitted between the horizontal and 10\deg ~is as important as the light emitted at all the other angles in producing the artificial sky luminance. Therefore the protection of a site requires also a careful control of this emission which needs to be reduced to at most 1/10 of the remaining emission. The emission between the horizontal and 10\deg ~is mostly produced by spill light from luminaires, so fully shielded fixtures (e.g. flat glass luminaires or asymmetric spot-lights installed without any tilt) are needed for this purpose.
Address
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Language Summary Language Original Title
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Area Expedition Conference
Notes (up) Approved no
Call Number LoNNe @ schroer @ Serial 575
Permanent link to this record