Improved soot model for glass furnace simulation
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
In a glass furnace, the heat from the combustion chamber is transferred to the glass batch by radiation. Soot and gas species like CO2 and H2O are mainly responsible for this heat transfer process. Therefore, for glass furnace modeling, a precise model of soot formation is needed. GTM-X, a CFD code specially designed for glass furnace simulation, is currently using Khan and Greeves one-equation soot model to model the soot formation in flames. A simulation result based on Brookes and Moss experiment indicated that prediction of the soot formation using this model is not accurate, as it under predicts the soot volume fraction by two orders of magnitude compared to experimental data. In this study, Moss-Brookes two-equation soot model is implemented in GTM-X to improve the prediction of soot formation. The model accounts for soot particle number and soot mass fraction. Two-equation k-ε model was used for turbulence modeling, steady flamelet model for chemistry modeling and Discrete Ordinate Method for radiation modeling. The simulation results from GTM-X were compared to the experimental data and simulation results from ANSYS FLUENT. Big improvement of the soot prediction has been observed after the implementation of Moss-Brookes soot model in GTM-X.
Place, publisher, year, edition, pages
CFD, combustion, soot modeling, glass furnace, moss-brookes model
IdentifiersURN: urn:nbn:se:kth:diva-148775OAI: oai:DiVA.org:kth-148775DiVA: diva2:737019
Subject / course
Master of Science - Sustainable Energy Engineering
2014-08-05, Brinellvägen 68, Stockholm, 11:30 (English)
Roekaerts, D.J.E.M, Prof. DrFakhrai, Reza, Dr.
Fakhrai, Reza, Dr.