CFD Online Logo CFD Online URL
Home > Forums > CFX

Oil combustion

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

LinkBack Thread Tools Display Modes
Old   March 8, 2011, 17:55
Default Oil combustion
New Member
Join Date: Apr 2009
Posts: 24
Rep Power: 10
brajh11 is on a distinguished road
I want to do a CFD simulation of oil combustion in a small burning device.

But i have some problems with pressures. If i use values from tutorial (domain: reference pressure 1 atm, outlet: relative pressure 0 Pa) => i have got incorrect values for pressure in CFD Post.

I want simulate a state for optimal lambda= 1.2.

Pressure from experiments: pressure in the combustor max. 2 bar, outlet is the atmospheric pressure - chimney. But i am not sure which values is the best to use in CFX to simulate this conditions (reference pressure for domain and relative pressure for outlet).

If i use values for pressure from tutorial => i must use for air inlet massflow: 0.027 kg/s to get similar products of combustion which i got during the experiments (CO, CO2, H2O, NO) => the value from experiment for air inlet massflow is 0.017 kg/s => i think the problem is pressures?

i use in CFX- i have got this values from experiment:
fuel inlet massflow: 0.000861 kg/s
air inlet massflow: 0.017 kg/s
oil nozzle pressure: 12 bar

Do you maybe anybody know which pressure is the best option in my case and why i must use greater air inlet massflow?
brajh11 is offline   Reply With Quote


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
Oil combustion problem brajh11 CFX 1 December 7, 2012 02:49
heavy fuel oil combustion imet FLUENT 0 April 11, 2005 03:57
oil combustion Krishnarao CFX 1 November 16, 2004 15:29
how to heat the oil in pipe with combustion fume flyingcfd CFX 5 August 16, 2002 14:30

All times are GMT -4. The time now is 18:04.