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Effect of an alternating electric field on the polluting emission from propane flame.

I. Ukradiga - D. Turlajs - M. Purmals - I. Barmina - M. Zake

Riga Technical University, Riga, LV-1014, Latvia } {Institute of Physics, University of Latvia, Salaspils-1, LV-2169, Latvia

The experimental investigations of the AC field effect on the propane combustion and processes that cause the formation of polluting emissions (NOx, CO, CO2) are performed. The AC-enhanced variations of the temperature and composition of polluting emissions are studied for the fuel-rich and fuel-lean conditions of the flame core. The results show that the AC field-enhanced mixing of the fuel-rich core with the surrounding air coflow enhances the propane combustion with increase in the mass fraction of NOx and CO2 in the products. The reverse field effect on the composition of polluting emissions is observed under the fuel-lean conditions in the flame core. The field-enhanced CO2 destruction is registered when the applied voltage increase. The destruction of CO2 leads to a correlating increase in the mass fraction of CO in the products and enhances the process of NOx formation within the limit of the fuel lean and low temperature combustion. Figs 11, Refs 18.

Magnetohydrodynamics 37, No. 4, 404-416, 2001 [PDF, 0.36 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X