The electric field-controlled heat and mass transfer and fuel combustion in the flame channel flows

M. Zake - M. Purmals

Institute of Physics, University of Latvia, Salaspils-1, LV-2169, Latvia

Abstract
Results of the experimental studies of the radial electric field effect on the processes of heat and mass transfer and fuel combustion in the flame channel flows are pre-sented here. These investigations demonstrate the field-enhanced variations of the flame temperature and composition profiles and field-enhanced heat generation, which are determined by the drift motion of positive ions in a field direction and momentum transfer to the fuel compounds. It is observed that the field-enhanced radial transfer of fuel compounds reduces a rate of fuel combustion and heat release in a central part of a flame channel flow. This provides reducing the local tempera-ture levels during the fuel combustion and field-enhanced decrease in a rate of NOx formation. Therefore, the results of presented studies demonstrate that the electric field effect on a flame can be used to perform the combustion control. Figs 13, Refs 12.