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

Diesel density in gas

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 14, 2010, 09:18
Default Diesel density in gas
  #1
Senior Member
 
Rickard
Join Date: May 2010
Location: Lund, Skåne, Sweden
Posts: 143
Rep Power: 7
Rickard.Solsjo is on a distinguished road
Is it possible to calculate the density of diesel number 2 as a function of temperature or pressure? Seems rather difficult
Rickard.Solsjo is offline   Reply With Quote

Old   June 15, 2010, 16:27
Default
  #2
Member
 
M. Mahdi Salehi
Join Date: Mar 2009
Location: Vancouver, BC, Canada
Posts: 50
Rep Power: 8
smehdi609 is on a distinguished road
You must write you own themo model to be able to do that
smehdi609 is offline   Reply With Quote

Old   June 23, 2010, 05:10
Default
  #3
Senior Member
 
Rickard
Join Date: May 2010
Location: Lund, Skåne, Sweden
Posts: 143
Rep Power: 7
Rickard.Solsjo is on a distinguished road
Seems like no-one know.
What I did was instead to find the boiling temperature for diesel with 10-17 carbonatoms. The molecular weight is found just by adding the constituents of the carbohydrate, 12*#C+#H.
Thereafter I used some reference data from sandia experiments, by for e.g. Pickett, to get the ambient parameters and injection drop.
I used the equation of state to get the ambient pressure and then this pressure to get the fuel density. Since the injection pressure into a sandia bomb is about 1100bar or something like that, the density is about 200kg/m3
Rickard.Solsjo 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
Help!! calculate gas density by ideal gas law Mahe Phoenics 1 January 26, 2010 04:57
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 12:02
Warning 097- AB CD-adapco 6 November 15, 2004 05:41
Gas pressure question Dan Moskal Main CFD Forum 0 October 24, 2002 22:02


All times are GMT -4. The time now is 23:15.