[Gasification] Help with Heating Gasifier design (Starting togetconfused)

[Jeff Davis]

Hi Steve,


On Wednesday 16 August 2006 05:33 pm, Steve Carroll wrote:
>   Downdraft allows for continuous operation without complication.

You might like the open top (stratified) gasifier for continuous operation.

>   As for 
> staged combustion, I'm not entirely against it but I don't believe that it
> would be as efficient or as clean.

IMHO, I would gasify the wood then mix the air with the gas for the cleanest 
burn.


> Yes, this is a close-coupled gasifier. I suppose I could just as easily
> pipe the gas somewhere else and burn it but most of the tars would probably
> condense in the pipe. 

A down draft would be helpful here.


> I think that what I am trying to figure out is: is it possible to put
> either the primary or secondary air stream in the charcoal bed and still
> have a layer of charcoal above it to do the co and h2 conversions. Also,
> would the oxygen through the charcoal bed just burn the charcoal off too
> fast.

I think this is the meat of your question. Interesting! I would first 
prototype your idea out of scrap metal (barrels etc.), first. Before spending 
the money on it. In other words, do some experimenting before casting your 
creation in cement.


Jeff



-- 
Jeff Davis
Somewhere 20 miles south of Lake Erie, USA
http://www.velocity.net/~jeff0124