Experimental study of combustion of low-calorific producer gas from small scale biomass gasification within porous burner

The aim of this experimental study is to investigate the combustion low-calorific producer gas within porous burner. small scale downdraft biomass gasification for rural area was performed produce gaseous fuel. Three types wood in Thailand were used as raw materials gas, i.e. Acacia-mangium, White popinac and Eucalyptus. low heating values range 3800-4232 kJ.kg-1 that are difficult burn conventional Tapered bilayer burners overcome limitation. effects air preheating modes, equivalence ratio firing rate on thermal structure pollutant emission revealed. results showed complete with accomplished 2.8 – 3 kW. Both CO NOx less than 160 ppm all tests. tapered burner emitted nearly zero ratios. tar reduction 99.5% by