Highly Efficient Metal Halide HID Systems With Acoustically Stabilized Convection

Author

Stockwald, Klaus ; Kaestle, Herbert ; Ernst, Herbert

Author_Institution

OSRAM GmbH, Augsburg, Germany

Volume

50

Issue

1

fYear

2014

fDate

Jan.-Feb. 2014

Firstpage

94

Lastpage

103

Abstract

High-intensity discharge (HID) lamp systems based on the application of acoustically induced convection, causing arc straightening, enhanced plasma mixing, and effective suppression of segregation effects, are presented. Outstanding HID lamp system properties with significantly enhanced efficacy level up to 150 lm·W^-1 providing high-quality white light can be achieved. The design and dimensioning of the ceramic lamp tubes in accordance with high-frequency supply schemes, which enables the system for long-term operation, are discussed.

Keywords

arcs (electric); ceramics; convection; discharge lamps; acoustically induced convection; acoustically stabilized convection; arc straightening; ceramic lamp tubes; high-frequency supply; high-intensity discharge lamp systems; metal halide HID systems; plasma mixing; segregation effects; white light; Acoustics; Ceramics; Electron tubes; Electronic ballasts; Frequency modulation; High intensity discharge lamps; Plasmas; Acoustics; ceramics; cerium compounds; diffusion processes; fluid flow control; frequency modulation; high-intensity discharge (HID) lamps; intelligent control; light sources; plasma arc devices;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2013.2271271

Filename

6547652