Wood Combustion Behaviour in a Fixed Bed Combustor

摘要

Waste wood is used as feedstock for Universiti Teknologi Malaysia's newly-developed two-stage incinerator system. Ile research goals are to optimize the operation of the thermal system to the primary chamber, to improve its combustion efficiency and to minimize its pollutants formation. The combustion process is evaluated with the variation of fuel's moisture content. For optimum operating condition, where the gasification efficiency is 95.53%, the moisture content of the fuel is best set at Irk, giving odd operating temperature of 550oC and exhaust gas concentrations with 1213 ppm of CO, 6% of CO2 and 14% of 02 respectively. In line to the experimental work, a computational fluid dynamics software, Fluent is used to simulate the performance of the primary chamber. Here the predicted optimum gasification efficiency stands at 95.49% with CO. CO2 and 02 concentrations as 1301 ppm, 6.5% and 13.5% respectively.