Numerical Simulation and Experimental Research on Higher Heating Value Biomass Gas Gasifier

Abstract

With dry woody particles as fuel and air-steam as gasification agent, the higher heating value biomass gas gasifier used software to simulate the height position h of the steam from the entrance in the gasifier, the steam inlet flow rate Vs and the air inlet flow rate V0. These three parameters impact on the volume concentration of CO, H2 and CH4 and its gas calorific value were analyzed. The orthogonal test were used for design parameters h, Vs and V0, the optimization values of these three parameters were carried out, and test its volume concentration and gas calorific values. Numerical simulation and experimental results showed that when the height position h=180mm, air inlet flow rate V0=0.94m3/h, and steam inlet flow rate Vs=1.30m3/h, the combustion of biomass gas calorific value arrives its top, the value is Q=10.98MJ/m3, which is 114.87% higher than when single gas agent is used.