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Combustion of suspended fine solid fuel in air inside inert porous medium: A heat transfer analysis

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Combustion of suspended fine solid fuel in air inside inert porous medium: A heat transfer analysis
 
Creator Kayal, Tarun Kumar
Chakravarty, Mithiles
 
Subject Electronics
 
Description 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.
 
Publisher Elsevier
 
Date 2007-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/468/1/Int_J_Heat_Mass_Transfer_50_(2007)_3359%E2%80%933365.pdf
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
 
Relation http://cgcri.csircentral.net/468/