Calculations: Wood Vaporization Values

[Flashlight237]

So, I went out of my way to calculate the vaporization value of wood and it had been okay'd, but I'd might as well CRT it just to make sure.: https://vsbattles.fandom.com/wiki/User_blog:Flashlight237/Vaporizing_Wood

Based on the calculations made, the vaporization of wood (or at the very least Douglas fir, but a lot of studies generalize wood anyway) appears to range from 9167 to 10127.1 joules per cubic centimeter. A smidge low, but the math ain't wrong. I did that because... Heck with it, it'll be needed for wood vaporization feats. So yeah, there ya have it.

 

[Dalesean027]

Considering I gave my okay you can say I agree

 

[Flashlight237]

Considering I gave my okay you can say I agree

Alright, cool.

 

[DarkDragonMedeus]

Seems fairly fine. And I know some calcs might need slight adjustments.

 

[Flashlight237]

Seems fairly fine. And I know some calcs might need slight adjustments.

Yeah, that's true. It's not every day someone decides to calc missing values. I did some on Carbon (graphite and carbon fibers) of all things, though calcium is largely a mess. I've a feeling I'll have to use rules of thumb for that one.

 

[Flashlight237]

I was given Ant's okay to ask some of the more experienced calc group members about this, so may as well.

@Therefir @DemiiPowa @DemonGodMitchAubin @KLOL506 @Damage3245 @Dark-Carioca Any thoughts?

 

[Damage3245]

This seems fine to me.

 

[Stryker861]

I think this will be pretty helpful.

 

[Therefir]

This is pretty good, a much easier way to calculate vaporization wood.

 

[DemonGodMitchAubin]

Look goods to me

 

[KLOL506]

I ain't the best guy to ask for vaporization values, but why not ask @DontTalkDT, @Executor_N0 and @Spinosaurus75DinosaurFan for approval?

 

[DontTalkDT]

Well, for a start burning vs. vaporization should be addressed upon usage.
The reason we don't consider combustion with humans is that they wouldn't burn if you incinerate them quickly. Too much water. In cremation, some stuff might burn, but that is after the flames dried things to a certain extent, which takes time. Really, the temperatures we use are probably more of a low-end...

Anyway, dry wood burns easier, so exothermal chemical reactions should be considered.

So, before using those vaporization values it is a good idea to put some thought into it.

Anyway, safety disclaimer aside, let's get to the calc:

And before you ask, no, there is no latent heat of fusion for wood. I checked.: https://link.springer.com/article/10.1007/s10973-022-11285-9

Can you point out the part where it says there is no latent heat of fusion?

Wood (15°C): 1.05+(1.8*10^-4*15)

Where does that formula come from? It doesn't seem to match the ones on page 213 from this.

Now, according to this, vapors are released by wood at 1100°C: https://www.dnr.louisiana.gov/assets/tad/education/ecep/sources/d/d.htm

That's °F in the source, not °C.
This and this might be of interest.

 

[Flashlight237]

Well, for a start burning vs. vaporization should be addressed upon usage.
The reason we don't consider combustion with humans is that they wouldn't burn if you incinerate them quickly. Too much water. In cremation, some stuff might burn, but that is after the flames dried things to a certain extent, which takes time. Really, the temperatures we use are probably more of a low-end...

Sure, but you gotta keep in mind the end results of both cremation and wood burning are the same: ash.

Can you point out the part where it says there is no latent heat of fusion?

Right after Figure 10 in the article linked.

Where does that formula come from? It doesn't seem to match the ones on page 213 from this.

Same page, under "Volatile Pyrolysis Products", the section which directly correlates to the final paragraph of Page 212 where the 20 MJ/kg figure came from.

That's °F in the source, not °C.
This and this might be of interest.

... -snap!- Shit!

 

[Flashlight237]

That's °F in the source, not °C.
This and this might be of interest.

Well, I went in and fixed that part. Damn, messing up the most basic numbers made me feel stupid there.

 

[Flashlight237]

Any opinions now that I've fixed the calc awhile ago?: https://vsbattles.fandom.com/wiki/User_blog:Flashlight237/Vaporizing_Wood