Experimental study on the combustion characteristics of stalk biomass fuel

Abstract

China is an agriculture country. Biomass resource will be up to 65 hundred million ton per year. On the assumption that average heating value is 15000KJ/kg, those biomass resources are equivalent to 33 hundred million ton standard coal, and equivalent to 1.8 double annual total energy consumption in China. Biomass fuel is a kind of renewable energy. In this paper, basal compositions of multi-representative biomass fuel were studied, especially analyzed on the effects on combustion characteristics of composition changes of molding corn stalk. The air consumption, triatomic gas and flue gas of unit mass of corn stalk all are under those of general soft coal, therefore, air supply and air distribution of corn stalk combustion are obviously different from those of general soft coal. Combustion experiments were adopted on the grate boiler, and the results indicated that under the specific air distribution, molding corn stalk could meet the need of combustion.