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January 4, 2011, 16:27 |
Coal gasification fluent
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#1 |
New Member
Join Date: Jan 2011
Posts: 7
Rep Power: 15 |
Hi all,
I am trying to simulate coal gasification using species transport, finite rate chemistry/eddy dissipation model.... These are the reactions I want to include: Heterogeneous Reactions: C(s)+0.5O2 --> CO C(s)+CO2 --> 2CO C(s)+H2O --> CO+H2 Homogeneous Reactions: Volatiles+O2 --> CO2+H2O CO+0.5O2 --> CO2 CO+H2O --> CO2+H2 CO2+H2 --> CO2+H2O H2+0.5O2 --> H2O I have chosen coal-mv-volatiles-air as the mixture material...but having confusion over what species to include in the mixture /fluid /solid under the materials tab...I am using FLUENT 12.1 version... could anyone please suggest on this... thanks Arnab |
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February 24, 2013, 01:04 |
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#2 | |
New Member
prishor p k
Join Date: Jul 2012
Posts: 29
Rep Power: 14 |
dear arnab,
i am prishor. i am doing the simulation of biomass gasification in Fludized bed. i am also stuck with the material entry in material panel. for the homogeneous reaction is it necessary to enter each reactant mixture in material tab?. please help me if you have any idea. thanks and regards, prishor p k Quote:
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February 24, 2013, 05:36 |
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#3 |
Senior Member
SSL
Join Date: Oct 2012
Posts: 226
Rep Power: 14 |
I have modeled Fixed-Bed combustion by UDF programming in fluent. Fluidized bed may be like that.
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February 26, 2013, 01:01 |
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#4 |
New Member
prishor p k
Join Date: Jul 2012
Posts: 29
Rep Power: 14 |
dear saeed,
thank you for your kind reply.i have a doubt that where i should enter both heterogeneous and homogeneous reaction... whether to enter homogeneous reaction in species transport panel and heterogeneous reaction in phase interaction panel only.. can you help me with your UDF so that i will get some idea about UDF for multiphase. awaiting your valuable reply, thanks and regards, prishor QUOTE=msaeedsadeghi;409764]I have modeled Fixed-Bed combustion by UDF programming in fluent. Fluidized bed may be like that.[/QUOTE] |
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February 26, 2013, 01:08 |
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#5 |
Senior Member
SSL
Join Date: Oct 2012
Posts: 226
Rep Power: 14 |
Please email me a sample paper to check and help in defining parameters.
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February 26, 2013, 01:28 |
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#6 |
New Member
prishor p k
Join Date: Jul 2012
Posts: 29
Rep Power: 14 |
okkay mr. saeed i will a sample journal paper in which they mention the coal gasification with some reactions and its rate constants.
thanks and regards, prishor |
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January 19, 2015, 07:22 |
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#7 |
Member
Nikolaos Babilas
Join Date: Nov 2014
Posts: 37
Rep Power: 11 |
[QUOTE=arnab;289255]Hi all,
I am trying to simulate coal gasification using species transport, finite rate chemistry/eddy dissipation model.... These are the reactions I want to include: Heterogeneous Reactions: C(s)+0.5O2 --> CO C(s)+CO2 --> 2CO C(s)+H2O --> CO+H2 Homogeneous Reactions: Volatiles+O2 --> CO2+H2O CO+0.5O2 --> CO2 CO+H2O --> CO2+H2 CO2+H2 --> CO2+H2O H2+0.5O2 --> H2O I have chosen coal-mv-volatiles-air as the mixture material...but having confusion over what species to include in the mixture /fluid /solid under the materials tab...I am using FLUENT 12.1 version... could anyone please suggest on this... thanks Arnab In homogenous reactions do you know from what species consist of the volatiles? or do you define this volatiles with another option? i have a similar problem to the understanding of my fuel. thank you |
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August 21, 2016, 07:30 |
Coal Combustion
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#8 |
New Member
International/Other
Join Date: Feb 2014
Posts: 3
Rep Power: 0 |
Dear Saeed,
I am trying to simulate coal combustion by UDF programming in fluent. Would you please help me by a sample UDF file? Email address: Mohammad_jm2008@yahoo.com Thanks in advaned Best regards Yazdanpanah |
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November 17, 2016, 11:42 |
meaning
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#9 |
New Member
shailin
Join Date: Apr 2016
Posts: 4
Rep Power: 10 |
what does mv in coal - mv mean?
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July 20, 2019, 08:42 |
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#10 |
New Member
Join Date: Dec 2018
Posts: 1
Rep Power: 0 |
Dear msaeedsadeghi,
I am trying to write an UDF including Multi-step homogeneous reactions of coal combustion for my simulation on a furnace,but I am a newbie on UDF,can I have a communication with you for some help if you are available? or you could offer me some simple UDF codes samples so I can learn it Best wishes |
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coal gasification, fluent species transport |
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