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The U.S. Department of Energy, Building Technologies Program, and the National Electrical Manufacturers Association (NEMA) hosted a High Intensity Discharge (HID) Lighting Technology Workshop on November 15, 2005. HID technology experts from industry, universities, research organizations, and other government agencies gathered in Arlington, VA, to examine the current state of HID technologies and identify R&D opportunities to enhance the performance, efficiency, and use of HID technologies in commercial lighting applications.
James Brodrick, DOE Lighting Program Manager, and Ron Runkles, NEMA Program Manager, welcomed 34 workshop participants to a full-day session of presentations and facilitated discussion. James Brodrick kicked off the morning session with a presentation about the energy-saving potential of HID lighting, and the role of government in pushing the technology envelope by supporting targeted R&D.
Workshop presentations then focused on the current state of HID technologies and key opportunities. Jerzy Janczak from Philips Lighting spoke about achieving energy savings through controllable, high efficiency ceramic HID systems. J. Gary Eden from the University of Illinois talked about metal-halide laser spectroscopy and microcavity plasma devices, tools for improving HID lamp performance.
The next presenter, Walter Lapatovich from OSRAM SYLVANIA, focused on the efficacy limits of white-light metal halide lamps and potential methods for improving lamp efficacy. Roger Buelow from Fiberstars talked about lifetime increases and photometric improvements to quartz metal halide lamps, achieved with exterior thin film coatings and improved ballasts. Timothy Brumleve from APL Engineered Materials spoke about recent developments in dose optimization and design of low-wattage quartz metal halide lamps.
John Curry from the National Institute of Standards and Technology (NIST) followed, with a presentation on NIST's ALIGHT program. Norman Boling from Deposition Sciences talked about advances in internal and external arc-tube coating. Bill Ryan and Paul Walitsky of ICF Consulting then kicked off the open discussion and offered some additional ideas for HID advancements, including advanced phosphors and alternate arc-tube materials.
In a facilitated afternoon discussion, workshop participants identified cutting-edge R&D opportunities and challenges prohibiting further advancement of HID technology. The goal of the workshop was to create an outline of key R&D topics to advance HID technology through performance and efficacy improvements. The complete workshop report will be posted in January 2006.
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