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Author Topic: Pyrolysis v prescribed fire  (Read 1149 times)

mdangelmaier

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Pyrolysis v prescribed fire
« on: June 30, 2016, 08:30:25 am »

Hi,

I want to verify some calculations regarding temperatures which I have done by hand using FDS.

The scenario is more or less a couple of pallets which a cardboard box on top of each pallet. When calculating the temperature by hand
I got a max HRR of 19,4 MW and a burning surface of 18 m² resulting in nearly 500 °C at a certain distance.

Now I was wondering how to properly set up Pyrosim to verify those results. I thought about two options:

1) create on surface of a single pallet with burner and set the reaction to wood. I'm not sure if the cardboard as well as the other pallets
ignite after a while, although they should ignite, right?

2) prescribe the development of the fire using the 19,4 MW and use a Q_RAMP function. I would use several vents which would be enabled one after another to achieve 18m²

What do you guys think?
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