Numerical and experimental analysis of municipal solid wastes gasification process

摘要

As the quantity of municipal solid waste (MSW) increases with economic growth,problems arise in regard to sustainable management solutions. Thermal treatmentpresents a valid option for reducing the amounts of post-recycling waste to belandfilled. Incineration technology, besides reducing the total volume of waste andmaking use of the chemical energy in MSW for power generation, has negativeenvironmental impact from high emission of pollutants. Recent policy to tackle climatechange and resources conservation stimulated the development of renewable energy andlandfill diversion technology, thereby giving gasification technology developmentrenewed importance. In this work a two-dimensional CFD model for MSW gasificationwas developed and an Eulerian-Eulerian approach was used to describe the transport ofmass, momentum and energy for the solid and gas phases. This model is validated usingexperimental data from the literature. The numerical results obtained are in goodagreement with the reported experimental results.