INFINA (EX INFIP)   05545
INSTITUTO DE FISICA INTERDISCIPLINARIA Y APLICADA
Unidad Ejecutora - UE
artículos
Título:
Electrical characteristics and influence of the air-gap size in a trielectrode plasma curtain at atmospheric pressure
Autor/es:
R. SOSA; D. GRONDONA; A. MÁRQUEZ; G. ARTANA; H. KELLY
Revista:
JOURNAL OF PHYSICS - D (APPLIED PHYSICS)
Editorial:
IOP
Referencias:
Año: 2009 vol. 42 p. 45205 - 45212
ISSN:
0022-3727
Resumen:
A study of the electrical characteristics of the trielectrode plasma curtain (TPC) discharge is
presented. The influence of the air-gap size (for a fixed value of the inter-electrode distance)
on the discharge behaviour has been exhaustively studied. The TPC discharge is based on the
combination of a dielectric barrier discharge (DBD) with a corona discharge (CD) in a three
electrode system, and basically it consists of the stretching of a pure DBD by the action of a
negative CD generated between the active electrode of the dielectric barrier and a remote third
electrode. It was found that the general trend of the electrical characteristic curves (the average
discharge current and the streamer frequency as functions of the AC and DC biasing voltages)
was very similar for all the air-gap values considered. Our results indicate that the
development of the TPC discharge requires two conditions: (a) the presence of a positive cycle
of a well-developed DBD together with a CD where the remote electrode acts as the cathode
and (b) a voltage drop between the DBD electrode and the remote electrode high enough to
obtain an average electric field in the gap that must exceed a minimum average electric field
value in the streamer channel necessary for its propagation across the gap .