WIT Press


A Computational Analysis Of Re-bum Process In Wood/sludge-fired Stoker Boilers

Price

Free (open access)

Paper DOI

10.2495/AIR030161

Volume

66

Pages

12

Published

2003

Size

547 kb

Copyright

WIT Press

Author(s)

B. Rovagnati, P. Deb, S. Nester, J.K. Rabovitser & F. Mashayek

Abstract

A computational analysis of re-burn process in wood/sludge-fired stoker boilers B. ~ o v a ~ n a t i ' , P. ~ e b ' , S. ester', J.K. ~abovitse? & F. ~ a s h a ~ e k ' 'Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, USA. 'Gas Technology Institute, USA. Abstract In recent years, the re-burn process has been incorporated in the design and development of stoker boilers to reduce the emission of NOx from such boilers in an attempt to preserve the clean air environment. In this paper, we use the existing modelled governing equations for turbulent fluid flow, laden with wood/sludge particles, along with the transport equations for different species to numerically investigate various mechanisms responsible for NOx production. These equations are simulated using the Fluent software to conduct a detailed study on NOx production under different operating conditions for boiler, after incorporating a new method for the re-burn process. This new method is known as

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