Characteristics Of A Dielectric Barrier Discharge In Atmospheric Air

Journal Article · Tue Jul 07 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3192295· OSTI ID:21344281

Lai, C K; Chin, O H ^[1]; Thong, K L ^[2]

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1. Plasma Research Laboratory, Physics Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)
2. Microbiology Division, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)

Parallel plate dielectric barrier discharges consisting of two electrodes with glass (epsilon{sub r} = 7.5) and alumina (epsilon{sub r} = 9.0) as the dielectric barrier were constructed. The system is powered by a variable 20 kV high voltage supply which is capable of delivering unipolar voltage pulses at frequency of 0.1-2.5 kHz and sinusoidal voltages at 6.5 kHz and above. At atmospheric pressure, the discharges exhibit either diffuse or filamentary appearance depending on parameters which include the series capacitance established by the electrodes with the dielectric barrier and varying air gap, dielectric material, and frequency of the supply voltages. This DBD system is built for the study of bacterial sterilization.

• OSTI ID: 21344281
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1150; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ATMOSPHERIC PRESSURE
CAPACITANCE
CHALCOGENIDES
DIELECTRIC MATERIALS
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTRODES
FLUIDS
FREQUENCY RANGE
GASES
KHZ RANGE
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA
PLASMA DIAGNOSTICS
PLASMA PRESSURE
PLASMA PRODUCTION
RF SYSTEMS