CFD Online URL
[Sponsors]
Home > Forums > FLUENT

Fuel blends Combustion

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   August 7, 2002, 00:18
Default Fuel blends Combustion
  #1
Sheng
Guest
 
Posts: n/a
Hello,

I am trying to use FLUENT to simulate combustion of coal-coal blends. I want to consider the volatile and char combustion for both coals. Can anybody kindly provide experience or advices.

Thanks.

Sheng
  Reply With Quote

Old   August 21, 2002, 15:26
Default Re: Fuel blends Combustion
  #2
Joezap
Guest
 
Posts: n/a
I've not simulated multiple coal types but I'd be interesed in finding more about your approach. I think that you may create different coal types and assign each DPM injection a different coal type. If you can assume that the volatiles and char have similar LHV then perhaps the setup is simple. If however you need to use a different LHV for volatiles and char then you may have to use the three stream PDF approach, which is by the way, very computationally expensive. What type of combustion are you trying to simulate?
  Reply With Quote

Old   August 21, 2002, 20:07
Default Re: Fuel blends Combustion
  #3
Sheng
Guest
 
Posts: n/a
Hello, Joezap,

Thank you so much for your message. I am considering simulating combustion of fuel blends with two mixture fractions, i.e.one fuel one mixture fraction. The composition of each fuel have to be defined empirically. Actually, Fluent provides only one or two mixture fractions. As applied to fuel blends combustion, even using two mixture fraction will lose the advantage of seperating volatile and char for each fuel. As you suggested, maybe it is better to using three PDF streams, but I don't know how to do it right now. Could you give me some advices?

  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Please help with liquid fuel combustion modelling tom FLUENT 4 October 17, 2014 22:08
Diesel fuel combustion Marek CFX 1 November 30, 2008 14:39
Multicomponent fuel spray and combustion usker CD-adapco 0 May 16, 2007 03:45
energy from solid fuel combustion Silvia FLUENT 1 August 3, 2005 14:23
heavy fuel oil combustion imet FLUENT 0 April 11, 2005 04:57


All times are GMT -4. The time now is 06:48.