Characteristics of a dielectric barrier discharge in atmospheric air

Lai, C.K. and Chin, O.H. and Thong, Kwai Lin (2009) Characteristics of a dielectric barrier discharge in atmospheric air. In: Frontiers in physics: 3rd international meeting, 12-16 January 2009, Kuala Lumpur.

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Parallel plate dielectric barrier discharges consisting of two electrodes with glass (εr = 7.5) and alumina (εr = 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.

Item Type: Conference or Workshop Item (Paper)
Additional Information: This work is supported by the PPP Grant PS126/2007B (University of Malaya) and the Science Fund 06-01-03-SF0186 (Ministry of Science, Technology and Innovation).
Uncontrolled Keywords: Dielectric barrier discharges; Atmospheric pressure; Bacterial sterilization
Subjects: Q Science > QR Microbiology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Prof. Dr Kwai Lin Thong
Date Deposited: 31 Oct 2014 03:16
Last Modified: 12 Oct 2018 06:19

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