High-efficiency dielectric barrier Xe discharge lamp: Theoretical and experimental investigations

Sz Beleznai, G. Mihajlik, A. Agod, I. Maros, R. Juhasz, Zs Németh, L. Jakab, P. Richter

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

A dielectric barrier Xe discharge lamp producing vacuum-ultraviolet radiation with high efficiency was investigated theoretically and experimentally. The cylindrical glass body of the lamp is equipped with thin strips of metal electrodes applied to diametrically opposite sides of the outer surface. We performed a simulation of discharge plasma properties based on one-dimensional fluid dynamics and also assessed the lamp characteristics experimentally. Simulation and experimental results are analysed and compared in terms of voltage and current characteristics, power input and discharge efficiency. Using the proposed lamp geometry and fast rise-time short square pulses of the driving voltage, an intrinsic discharge efficiency around 56% was predicted by simulation, and more than 60 lm W-1 lamp efficacy (for radiation converted into visible green light by phosphor coating) was demonstrated experimentally.

Original languageEnglish
Article number012
Pages (from-to)3777-3787
Number of pages11
JournalJournal of Physics D: Applied Physics
Volume39
Issue number17
DOIs
Publication statusPublished - Sep 7 2006

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Discharge lamps
Electric lamps
luminaires
Methyl Green
Electric potential
far ultraviolet radiation
Fluid dynamics
Ultraviolet radiation
Discharge (fluid mechanics)
Phosphors
simulation
electric potential
fluid dynamics
Metals
plasma jets
phosphors
Vacuum
strip
Plasmas
Radiation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

High-efficiency dielectric barrier Xe discharge lamp : Theoretical and experimental investigations. / Beleznai, Sz; Mihajlik, G.; Agod, A.; Maros, I.; Juhasz, R.; Németh, Zs; Jakab, L.; Richter, P.

In: Journal of Physics D: Applied Physics, Vol. 39, No. 17, 012, 07.09.2006, p. 3777-3787.

Research output: Contribution to journalArticle

Beleznai, Sz ; Mihajlik, G. ; Agod, A. ; Maros, I. ; Juhasz, R. ; Németh, Zs ; Jakab, L. ; Richter, P. / High-efficiency dielectric barrier Xe discharge lamp : Theoretical and experimental investigations. In: Journal of Physics D: Applied Physics. 2006 ; Vol. 39, No. 17. pp. 3777-3787.
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