CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

coal combustion

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 16, 2013, 11:25
Default coal combustion
  #1
New Member
 
Join Date: Jun 2010
Posts: 20
Rep Power: 7
semo is on a distinguished road
Hello,

I am modeling coal combustion with non-premixed combustion and dpm. I am checking fluxes after the calculation. Mass flow balances out and shows the correct flows including the coal particles. however, when I check the heat transfer it shows less heat input from the dpm. Coal flow is 400,000 lb/h (mass flow is correct) and Coal HHV is 10,000 btu/lb (this value entered in coal calculator) so I should have 4,000mmbtu/hr heat input from dpm. Instead it shows me only 1,000mmbtu/hr from dpm.

FYI I am providing more than enough air to complete the combustion.

Any ideas?

Thank you in advance.
semo is offline   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
Coal combustion injection properties semo FLUENT 10 May 2, 2014 11:03
Problem on EDC model for coal combustion lei FLUENT 3 April 29, 2014 08:55
Coal combustion and ash reaction kinetics sega Fluent UDF and Scheme Programming 0 January 21, 2010 09:05
moisture in coal combustion Sheng FLUENT 3 June 15, 2003 19:43
Coal combustion with Fluent 4.5 or 5.0! Sriram Popuri Main CFD Forum 2 July 24, 1999 11:34


All times are GMT -4. The time now is 20:06.