Energy conservation opportunities in luminaire design and installation

✍ Scribed by Kenneth Lim; Edward Dean

• Book ID: 103900085
• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 209 KB
• Volume: 1
• Category: Article
• ISSN: 0378-7788
• DOI: 10.1016/0378-7788(77)90012-3

✦ Synopsis

Fluorescent lamp operating characteristics are discussed. Energy consumption and light output are sensitive to ambient temperature in such a way that lamps installed in luminaires operate far from the optimum condition. The effect is worse for surface-mounted fixtures than suspended fixtures. Fixture ratings are inaccurate because it is assumed that the lamp rating for the installed lamp is the same as the bare-bulb at the fixture ambient temperature. In practice this results in the over-design of lighting levels. Energy efficiency can be improved by ( 1)improved lamp design, so the lamps achieve optimum light generation at higher temperatures, (2) improved fixture design, such as air-cooling, and (3) improved fixture mounting, such as chain-or stem-suspension.