Somebody explain this please

[WOODplay]

Phew! A fella could get downright SWEATY reading thru that.........lol.

I burn wood, it gets warm in my house, I keep burnin wood so's I don't get cold.........

-Soupy1957

That’s a good one! I feel the same...
If I have to get out my calculator Fun just left the room
Just sit back, crack open another cold one and enjoy the heat and the view.

 

[jadm]

I read this topic last night before anybody responded. I almost responded but decided to go to bed and let someone else to the all the work. I see someone did and now I know a lot more than I did prior to going to sleep. Who ever said sleeping is a waste of time doesn't know what they are talking about....IMHO... ;-)

My answer wasn't quite as involved but I like it just the same so I shall add it to the mix even though the mix has moved down the list a bit....

Explanation via Buckminster Filler's words on wood burning....

Wood burning = "sunlight unwinding" .....(That is - as a tree grows it captures energy from the sun and stores it for later use by us humans...)

Hence the increase in heat output felt was simply sunlight unwinding a whole lot faster.... (My theory - not Bucky's....)

:coolsmile:

 

[krex1010]

I think he forgot to carry the 1, 1+1=3, yeah I think that's right.

As I said... not that difficult at all. :roll:

The angle of the dangle is directly proportionate to......

 

[soupy1957]

Fire sure is warm, ain't it?! (lol)

-Soupy1957

 

[henkmeuzelaar]

Fire sure is warm, ain't it?! (lol)

-Soupy1957

Funny, how it sometimes seems a lot warmer all of a sudden, eh??!

(aka the non-mathematical explanation)


Henk

 

[410MAN]

Fire sure is warm, ain't it?! (lol)

-Soupy1957

Well Soupy, Im down hear in North East Texas, its gonna snow here tomorrow for second time in 2 weeks and its cold, down to 17 (Texas temp not C) and it was cold so I put 2 little logs (oak and 2 bigger hickory) logs on and litted them, got a beer and it got warm, then wife got home and told me it was cold so I put on 2 more logs and 3 more beers and I got warmer. so I guess my btus are good, then I turned on electric blanket on my side and unplugged her side, PS i used one of those LONG matches to lite my fires, ya'll are lot smarter than me on math, i enjoy reading ya'll info.

 

[rideau]

I don't look at it like a higher air-to-fuel ratio per se so much as an improved mixing of the air and the fuel that is available. Many stove designs would pass the excess air too far away from the hottest part of the fire, providing no increased burn efficiency, but definitely creating a cooling effect on the fire and flue. With enough turbulence inside the firebox, however, the entire cavity becomes filled with a more evenly mixed mixture of gases and air. With a full load, the effect of turbulence isn't as pronounced, so there will be fuel-rich areas between the splits that just don't get enough oxygen in the primary burn area. Therefore, I believe that burning smaller amounts of wood promote more complete combustion, but it certainly is difficult to heat that way unless the smaller amounts of wood are being dropped into a burn pot in pellet form.

I thing the OP was right on when he mentioned the presence of the wood in the full load shielding the walls and glass from the direct effects of IR radiation. Still, if IR through the glass was largely responsible for this burst of felt heat, it fails to explains why the actual air temperature he is experiencing rises so quickly. IR radiation passing through air heats it up very little, so I think that convection may be a larger part of the picture in the case he is mentioning - both coming from the stove itself and coming from the other radiating surfaces in the room.

Which brings up and even more curious phenomenon I have experienced but can't quite explain. I can get my stove up to a certain temperature, but when I close the bypass I get an instantaneous wave of heat that really just hits me in the face. When I play the IR gun over all of the stove and pipe surfaces, I see no instantaneous rise in surface temperature (which, of course, is what I would expect). My feeling is that I must be feeling heat from the stove via convection vs IR radiation, but I still don't understand how this would occur without immediately increased surface temps.

Close the bypass and the air changes from exiting the stove straight up the back of the stove, or out the back of the stove, to instantly coming forward and washing up the window. All the heat of the exiting gas is now immediately adjacent to the glass, hitting it as it climbs, throwing a lot more heat out the glass. So you feel hotter instantly.

 

[ArsenalDon]

They'd either be doing things in their head that I needed to work out on paper, or they'd be solving problems on paper in 5% of the time it took me.

That's 10X's as fast Right??

 

[Machria]

Can somebody please pass me the Alieve bottle?

 

[Oldhippie]

energy is being radiated as the fourth power of absolute temperature AND this energy is being radiated at shorter wavelengths that pass more easily through the window).

Uh... yeah.. that!

 

[Pallet Pete]

Hu ? Wow this thread is sandpaper on my brain :D

Pete

 

[ArsenalDon]

Hu ? Wow this thread is sandpaper on my brain :D

Pete

Just pass the Scotch please?

 

[ArsenalDon]

When it's cold, I burn, if I still want to burn and it is hot inside I open windows...If it is too warm for a fire I do not light one.....sorry to be a smart a*% part of my nature

 

[Hearth Mistress]

When it's cold, I burn, if I still want to burn and it is hot inside I open windows...If it is too warm for a fire I do not light one.....sorry to be a smart a*% part of my nature

Now that's "math" i can understand
Cold house + wood burning in stove = warm house

I flunked geometry and trig in HS, all that "you'll need this in life" crap, hog wash, just turned 40, never needed anything more than basic math. I don't even know how you guys can come UP with these theories but if you want to analyze the laws of probabilities based on historical winning lottery number data, let me know what you find out

 

[ArsenalDon]

I teach econ, accounting and marketing.....Still do not need that trig and calc stuff...the big boys in the think tanks use all that and more, but I just wait to see if what they come down with sounds like logic