Re: Flammable Vapour Cloud Distance
by
Published on 04-21-2012 02:53 AM

Originally Posted by
jdhariwal
Hey All,
I would appreciate anyones help on this matter:
I have a release from a vessel of propane gas
How can I find the distance to the LFL / UFL from the source?
Are there any good calculations available (worked examples)?
Any help would be apprecaited on this matter
Kind Regards
J
This is a "consequence analysis" for a leak and dispersion scenario. Your problem has 2 subsequent steps for its solution:
1- a theoretical model for the release of flashing propane
2- a theoretical model for the dispersion of propane vapour in air
For newbies to consequence analysis I would recommend to be supported by a software tool, there a lot on the market
but if your are fond of mathematics and analytic solutions you could try with the evergreen
CCPS "Guidelines for consequence analysis of chemical releases"
and in the book there are a number of worked examples to start
You can find somewhere in the forum
hope this helps