fire area size and co2 and soot yields

[celso...@gmail.com]

Good evening!

I am modeling a fire in a radioactive waste deposit, but there is no experimental reference to follow.

In a simplified way, the entire fire load of the deposit was materialized in wood, in order to use the fire data in wood wall, provided by CFAST, changing the HRR calculated based on the calculations of the iBMB parametric curve.

My question is regarding the fire area: as there is no bibliographic reference and the entire fire load is distributed over the entire floor area (66.5 m²), when defining the fire, in CFAST, what would be the best way to define the area of the fire depending on its evolution ?,

It is important to take into account that I am considering all combustible materials (wood, polyurethane, plastic, PVC, paper, polyethylene) participating in combustion.

I would also like to know if there are any references that define soot and CO2 reductions for wood fires?

I am already very grateful for the attention

Sincerely

Celso

[Richard Peacock]

Chapter 36 of the SFPE Handbook of Fire Protection Engineering ( SFPE Handbook - SFPE )  by Kahn, Tewarson, and Chaos includes a wide range of species yields for burning fuels. There's also work by Koylu and Faeth that includes a correlation to estimate CO yield, see  

 U.O. Koylu and G.M. Faeth. Carbon Monoxide and Soot Emissions from Liquid-Fueled Buoyant Turbulent Diffusion Flames. Combustion and Flame, 87:61–76, 1991. 

It's described in an older version of the documentation for FDS.  See page 25 of the FDS 4 User's Manual ( Fire Dynamics Simulator (Version 4): User's Guide. | NIST  )

Richard