Numerical investigation of the heterogeneous combustion processes of solid fuels

Alganash, B., Paul, M. C. and Watson, I. A. (2015) Numerical investigation of the heterogeneous combustion processes of solid fuels. Fuel, 141, pp. 236-249. (doi: 10.1016/j.fuel.2014.10.060)

Abstract

Two-phase computational modelling based on the Euler–Euler was developed to investigate the heterogeneous combustion processes of biomass, in the solid carbon phase, inside a newly designed combustion chamber (Model 1). A transient simulation was carried out for a small amount of carbon powder situated in a cup which was located at the centre of the combustion chamber. A heat source was provided to initiate the combustion with the air supplied by three injection nozzles. The results show that the combustion is sustained in the chamber, as evidenced by the flame temperature. An axisymmetric combustion model (Model 2) based on the Euler–Lagrange approach was formulated to model the combustion of pulverized coal. Three cases with three different char oxidation models are presented. The predicted results have good agreement with the available experimental data and showed that the combustion inside the reactor was affected by the particulate size. A number of simulations were carried out to find the best values of parameters suitable for predicting NOx pollutants.

• Item Type: Articles
• Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, 141:236-249 2014 DOI:10.1016/j.fuel.2014.10.060
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Watson, Dr Ian and Paul, Professor Manosh
• Authors: Alganash, B., Paul, M. C., and Watson, I. A.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Fuel
• Publisher: Elsevier Ltd.
• ISSN: 0016-2361
• ISSN (Online): 1873-7153
• Copyright Holders: Copyright © 2014 Elsevier Ltd.
• First Published: First published in Fuel 141:236-249
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher