This week a new paper has been published in the IFRF Combustion Journal (http://www.journal.ifrf.net), entitled:

ANALYSIS OF GRATE FIRING OF WOOD WITH NUMERICAL FLOW SIMULATION
by
Huttunen, M, Kjäldman, L. and Saastamoinen,  J.

CORRESPONDING AUTHOR:

Marko Huttunen
VTT Technical Research Centre of Finland
VTT Processes, PO Box 1604
FIN-02044 VTT, Finland
E-mail: Marko.Huttunen@vtt.fi

ABSTRACT:

Flow, combustion and heat transfer in a grate fired furnace burning wood with a heating power of 1 MW has been analysed numerically using the CFD software FLUENT 6.0. Such furnaces are used for example in hot-water boilers of real estate heating systems. The submodels of FLUENT are used for turbulence, for combustion of devolatilised fuel and for radiative heat transfer. The user-defined functions of FLUENT are used to incorporate a submodel for the description of drying, pyrolysis, combustion and gasification of wood on a grate. The grate submodel considers the interactions between the fuel bed and gas phase above the bed, and it predicts the temperature of the fuel bed and the temperature and the composition of the gas mixture released into the furnace from the bed. Subsequently, these are used to calculate the source terms for the flow modelling. The fuel bed model is employed together with the flow simulation. According to the results of the two simulation cases that are considered, minor changes to the construction of the present furnace could considerably reduce CO emissions. The predictions also show that the present fuel bed model is rather insensitive to the conditions of the gas phase above the bed but are more likely to be affected by the properties of the fuel bed.

FULL PAPER:
The full paper may be downloaded from the server, in the “New Papers” section (http://www.journal.ifrf.net/articles.html), by clicking on the Acrobat PDF icon alongside the title.

Publication in the Journal
The Editor-in-Chief (See associated article in this edition of the MNM) would like to remind all potential authors that publication in the Journal is open to all. If you have interesting results to publish in the field of, or related to, industrial combustion, we invite you to prepare a paper according to the guidelines given in the Author’s Guide on the website (http://www.journal.ifrf.net/).

Papers may be regular “articles” (typically up to 20 pages) or Communications (typically up to 4/5 pages). Review papers can of course be longer. Remember that figures and graphics in general can be in full color. This advantage should be encouraged.

All manuscripts and associated files, proposed for publication should be sent by the Corresponding Author in a compressed/zip file, as an email attachment to journal@ifrf.net. This file should include a statement that the proposal’s content is unpublished material that has not being submitted for publication elsewhere. When an article by the author(s) is cited in the proposed article as “in press”, a copy of this article should accompany the proposed article and should be included in the compressed file.

The Editor-in-Chief looks forward to receiving your proposals.