New arc ingredients for HID lamps. Final report. [High Intensity Discharge]
The purpose was to examine new gas fills for high intensity discharges (HID) that might give higher efficacy and better color than the conventional metal halide or high-pressure sodium lamp fills currently used in lamps with electrodes. Electrodeless high intensity discharges were established in gases, such as the vaporized chlorides, which would be damaging to electrodes in conventional lamps. Frequency of excitation was 13.56 MHz, and discharge power ranged from about 400 to 1200 W. Electrical and optical properties of the arc were measured. Twenty-one lamps were built and tested. The highest efficacy measured was about 170 lm/W with a fill of mercury, thallium bromide, cerium chloride, and sodium bromide. CRI was about 50 and color temperature 4700K. Molecular radiators alone, such as mercury chloride, gave generally poor efficacy, approx. 80 lm/W. Atomic radiators, from dissociated salts, contributed strongly to the high efficacies. A preliminary examination of possible semiconductor ballast configurations predicts a parts cost of about fifty dollars and an efficacy of about 85%. Stray electromagnetic fields from the lamp assembly are calculated to be below ANSI Standard C95.1-1982 at distances from the lamp of 0.6 m or more. Calculations also show that the lamp cannot meet FCC specifications for operation outside ISM bands. A preliminary cost of light analysis compared the electrodeless lamp, a 1000 W HPS lamp, and a 1000 W metal halide lamp for a parking lot application. The electrodeless and HPS lamps were about equivalent with metal halide more costly.
- Research Organization:
- General Electric Co., Schenectady, NY (USA). Research and Development Center
- DOE Contract Number:
- AC03-84SF11994
- OSTI ID:
- 6151786
- Report Number(s):
- DOE/SF/11994-1; ON: DE86005597
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320602* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Public Services-- (1980-)
ALKALI METAL COMPOUNDS
BALLASTS
BROMIDES
BROMINE COMPOUNDS
CERIUM CHLORIDES
CERIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COST
EFFICIENCY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY SYSTEMS
EQUIPMENT
HALIDES
HALOGEN COMPOUNDS
LIGHT BULBS
LIGHTING SYSTEMS
MERCURY
METALS
OPTICAL PROPERTIES
PERFORMANCE TESTING
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SODIUM BROMIDES
SODIUM COMPOUNDS
SPECTRA
TESTING
THALLIUM BROMIDES
THALLIUM COMPOUNDS
THALLIUM HALIDES