2013•Unpublished venueRequires access
ACTIVE CONTROL OF BIOMASS COMBUSTION CHARACTERISTICS BY HIGH FREQUENCY OSCILLATIONS
Inesa Barmina, Modris Purmalis, Raimonds Valdmanis, Maija Zaķe
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Abstract
The paper presents the results of an experimental study of the effect of high-frequency electromagnetic (EM) field oscillations on combustion and emission characteristics of biomass pellets with the aim to provide active control of the processes of biomass gasification and combustion. The effects of high- frequency oscillations on the combustion characteristics were studied experimentally providing complex measurements of the combustion characteristics, produced heat energy and product composition by varying the electric power and duration of biomass preprocessing by EM oscillations. It is found that high-frequency oscillations promote enhanced biomass gasification and combustion of volatiles completing the combustion of the volatiles with a correlating increase of the combustion efficiency and produced heat energy. The mechanism of high-frequency oscillations on the combustion characteristics is analyzed considering the field - enhanced variations of biomass thermal decomposition.