Kayal, Tarun Kumar and Chakravarty, Mithiles (2007) Combustion of suspended fine solid fuel in air inside inert porous medium: A heat transfer analysis. International Journal of Heat and Mass Transfer, 50 (17-18). pp. 3359-3365. ISSN 0017-9310

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Present work is a numerical analysis of combustion of submicron carbon particles inside an inert porous medium where the particles in form of suspension in air enter the porous medium. A one-dimensional heat transfer model has been developed using the two-flux gray radiation approximation for radiative heat flux equations. The effects of absorption coefficient, emissivity of medium, flame position and reaction enthalpy flux on radiative energy output efficiency have been presented. It is revealed that in porous medium the combustion of suspended carbon particles is similar to premixed single phase gaseous fuel combustion except the former has shorter preheating ternperature zone length. Use of porous ceramic having high porosity and made of Al2O3 or ZrO2 with stabilized flame position operated nearer to downstream end will ensure radiative output maximum and minimum at downstream and upstream end, respectively.

Item Type: Article
Subjects: Electronics
Depositing User: Namita Dutta
Date Deposited: 23 Jan 2012 12:16
Last Modified: 05 Mar 2012 10:29
URI: http://cgcri.csircentral.net/id/eprint/468

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