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Title: Photometric assessment of energy efficient torchieres

Extensive development of designs and prototyping of energy efficient torchiere systems using compact fluorescent lamps (CFLs) has led directly to the production of CFL torchieres by a major US manufacturer. This paper compares the electrical and photometric characteristics of one of the new CFL torchieres to standard tungsten halogen torchieres (halogen uplighters). Power assessments and gonio-photometric data indicate that the new CFL torchiere provides significant energy savings over the standard tungsten halogen torchiere while producing more luminous flux. The energy savings is jointly due to the high source efficacy of the CFLs and the poor performance . of the imported halogen lamps. The paper also presents results from a test site in the student dormitories at Stanford University where a torchiere "lamp swap" program was initiated in which students voluntarily traded their halogen torchieres for CFL torchieres. Out of the 500 torchieres involved in the lamp swap, a random sample of nearly 100 halogen lamps (seasoned in the field and considered to represent a typical population) were collected and photometrically and electrically characterized in the laboratory. These laboratory results indicate that the CFL torchieres use 65 watts to produce 25 percent more light than the 300 W tungsten halogen torchieresmore » they are designed to replace. Additionally, the CFL torchieres have the benefit of a cooler lamp operating temperature, making them safer luminaires.« less
Authors:
;
Publication Date:
OSTI Identifier:
6382
Report Number(s):
LBNL-40507
ON: DE00006382
DOE Contract Number:
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: Right Light 4, 4th European Conference on Energy-Efficient Lighting, Copenhagen, Denmark, November 19-21, 1997
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; Fluorescent Lamps; Energy Efficiency; Energy Conservation; Photometry