Eur. Phys. J. D 54, 265-270 (2009)
https://doi.org/10.1140/epjd/e2009-00034-8

Back discharge in multipoint-plane geometry in flue gases

Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland

Corresponding author: ^a krupa@imp.gda.pl

Received: 15 September 2008
Revised: 24 November 2008
Published online: 13 February 2009

Abstract

The paper presents investigations of back discharge occurring in air and flue gases produced by the process of burning of liquefied petroleum gas or charcoal. The discharge was generated between a multineedle electrode and plate covered with fly ash layer. The aim of this work was to determine the effects of back discharge in multineedle-to-plate electrode configuration on the fly ash layer covering the plate electrode. Level of NO_x and CO emission was also measured. It was found that the chemical composition of flue gas can be changed in the domains where the back discharge occurs, for example, additional amounts of nitrogen oxides (NO and NO₂) are produced and also carbon oxide (CO) was produced at higher discharge current.