Steady-State Waste Combustion and Air Flow Optimization in a field Scale Rotary Kiln

摘要

This study describes a computational modeling study of a full-scale rotary kiln using the commer- cial CFD-code PHOENICS. A steady-state mode is assumed in which solid waste (a mixture of cel- lulose and toluene) is volatilized and burned. The focus of the model is on the gas phase fluid dy- namics. Buoyancy is accounted for, turbulence is modeled with the k-∈ model, radiative transfer is in a first step modeled with composite flux model of radiation and combustion is modeled us- ing the simple chemical reaction scheme (SCRS) model for diffusive, mixing limited reacting flows.