Energy and Economic Assessment of a System Integrated by a Biomass Downdraft Gasifier and a Gas Microturbine

This work focuses on the energy and economic evaluation of a power generation system composed downdraft gasifier gas microturbine. The gasification process was studied using wood pellets as fuel, while influence two agents (air oxygen-enriched air) parameters, such low heating value (LHV), composition, yield syngas, were analyzed. syngas produced from air in had an LHV higher than 8 MJ/Nm3, being suitable to be supplied Subsequently, use microturbine evaluated, results demonstrated that efficiency dropped 33.00% 21.35%, its decreased 200 kW 81.35 kW. modeled Aspen Plus® v 11.0 software validated obtained published experimental studies. Accordingly, integrated presented overall 11.82% for cases. On other hand, assessment through risk analysis Monte Carlo simulations performed Crystal Ball® v11.1.2.4.850 software. indicated implementation economically unfeasible, however, if electricity rate price increased by 63%, proposed configuration could feasible.