Title: Predicting pollutant emissions from combustion systems using a novel integrated methodology

Authors: Davide Benedetto, Sauro Pasini, Mariano Falcitelli, Cristiana La Marca, Leonardo Tognotti

Addresses: ENEL S.p.A. Research Centre Generation Branch, Via A. Pisano, 120-56122 Pisa, Italy. ENEL S.p.A. Research Centre Generation Branch, Via A. Pisano, 120-56122 Pisa, Italy. Consorzio Pisa Ricerche, Piazza D'Ancona, 1-56126 Pisa, Italy. Consorzio Pisa Ricerche, Piazza D'Ancona, 1-56126 Pisa, Italy. Universita degli Studi di Pisa, Dip. di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali, Via Diotisalvi 2-56100, Pisa, Italy

Abstract: The present contribution describes some of the activities carried out in the domain of combustion modelling at ENEL Research Generation Department. They concern the development and use of CRFD codes applied to the design of industrial furnaces. The objective is to predict the emission of pollutants, such as nitrogen oxides, in real combustion systems. A new approach has been developed, as a reasonable trade-off between engineering needs and computational resources limits analysing the 3D CRFD flow fields, an ||equivalent|| chemical reactors network model is extracted with corresponding residence times distributions and average local properties. Then a detailed kinetic calculation is performed on this simpler scheme. In this paper, a description of the CRFD codes is given, and the methodology to extract a chemical ideal reactors model from CRFD fields is presented. Finally, some relevant applications to industrial furnaces are discussed.

Keywords: combustion; complex kinetics mechanism; chemical reactor network; NOx; industrial furnaces; utility boilers; glass furnaces.

DOI: 10.1504/PCFD.2001.001470

Progress in Computational Fluid Dynamics, An International Journal, 2001 Vol.1 No.1/2/3, pp.50-61

Published online: 14 Dec 2003 *

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