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DOI: 10.1615/ICHMT.2001.RadiationSymp.590
page 9

M. Falcitelli
Consorzio Pisa Ricerche. P.zza A. D'Ancona, 1. - Pisa, Italy

Sauro Pasini
ENEL Ricerca-Generation Area Combustion and Fuel Gas Treatment Unit Via Andrea Pisano, 120 1-56122 Pisa, Italy

Leonardo Tognotti
Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali, Universitá di Pisa, Via Diotisalvi 2, 56100 Pisa, Italy


An integrated methodology for the simulation of practical combustion systems is presented. A detailed 3D simulation of flow is performed adopting adequate CFD models for heat transfer, chemical reactions and turbulence. Then flow information is extracted from resulting CFD fields to create simplified reactor networks, for utilising detailed reaction chemistry and predicting the interconversion of the species involved in combustion. The study of two glass melting furnaces are shown as example. The furnaces were experimentally characterised, then CFD simulations were performed. From each CFD simulation, a chemical reactor network was extracted, to perform the computation of the secondary product combustion species. An evaluation of the models was given comparing the measurements with of both the temperature CFD field and the NOx prediction. A discussion of the effect of the various sub-models is presented with a special emphasis on the heat-transfer boundary conditions and combustion chemistry interaction.

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