Very informative presentation

[ballibeg]

Came across this pdf on an America forum. If we sell wood we should understand as much about the drying and burning process as we can.

check out this site

 

http://www.epa.gov/burnwise/workshop2011/WoodCombustion-Curkeet.pdf

 

Dave

[kevinjohnsonmbe]

[Woodworks]

Bookmarked. Thanks

[difflock]

Excellent

[Wood wasp]

Thanks for sharing, very interesting.

 

Not quite sure how a tree can be 150% moisture content though?

[openspaceman]

Thanks for sharing, very interesting.

 

Not quite sure how a tree can be 150% moisture content though?

 

Yes there were a couple of anomalies but on the whole it seemed good. Americans still don't like SI units!

 

The 150% is when the percentage is given on a dry weight basis e.g. if you have a 1m3 solid log of beech freshly felled it will weigh near as damn 1 tonne. Of this 50% will be water so on a wet weight basis the log will be 500kg of water out of the 1000kg log so mc wwb =500/1000 =0.5 or 50%. Now if you dp the same calculation on a dry weight basis you take the mass of water divided by the dry mass of wood =500/500 or 100%.

 

Do the same with a piece of pine at 60% mc wwb and you get 150% dwb. Dry weight basis is more used in the joinery trade.

[elder]

Interesting read cheers