Mathematical Modelling of Swirling Pulverized Coal Flames

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Title Mathematical Modelling of Swirling Pulverized Coal Flames
Creator Weber, Roman; Peters, Andre F.; Breithaupt, Peter P.; Visser, B. Martien
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1993
Spatial Coverage presented at Tulsa, Oklahoma
Abstract The present study is concerned with mathematical modeling of swirling pulverized coal flames. The attention is focused on the near burner zone properties of high- and low-NOx flames issued from an Acrodynamically Air Staged Burner of 3.4 MW thermal input. The swirling combusting flows are calculated using the k-e model and second-order models of turbulence. The Eulerian balance equations for enthalpy and mass fractions of oxygen, volatilcs, carbon monoxide and final combustion products (CO2+H2O) are solved. The Lagrangian particle tracking is accompanied by appropriate models of coal devolatilization and char combustion. Nitric oxide emissions are calculated using a NOx post-processor for thermal-, prompt- and fuel-NO. The objective of this paper is to examine whether the engineering information required for designing industrial burners is obtainable through the mathematical modeling. To this end. the flame computations, including NO emissions, are compared with the measured in-flame data. The guidelines as to the combination of physical sub-models and model parameters needed for quality predictions of different flame types are given.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
Metadata Cataloger Kendra Yates
ARK ark:/87278/s6mp55tq
Setname uu_afrc
Date Created 2012-05-07
Date Modified 2012-09-05
ID 7735
Reference URL