Wacky idea but hey, I'll throw it out there.

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EricV

Feeling the Heat
Hearth Supporter
Oct 29, 2007
290
Saranac, NY
Anyone ever thought of making some sort of steel bin, cage, container or some sort of pot to hold pellets in a gasification boiler?

My idea is if someone ran out of wood could we make some sort of container to hold a pot of burning pellets in the boiler?

Don't flame me too hard, just thinking out loud.
 
wacky ideas sometimes lead to useful innovations, so I don't think anyone should flame anyone over them

I remember a few years ago, when I was first reading up on pellets and other altfuel devices, at the time, someone was manufacturing and promoting a "retrofit pellet pot" that you could place in a woodstove or an old-tech updraft wood furnace or boiler, and allow you to burn pellets (although of course without the automatic pellet feed of manufactured pellet burning appliances)

It _seems_ like you could develop a device that migth accomplish a similar function for a downdrft gasifier, although it'd somehow have to hold the pellets in while still allowing the downdraft to function- more complicated than the other thing I saw that just sat on the bottom of a combustion chamber to hold the pellets, which burned upwards

I agree your idea might be a comforting fall-back to have, as long as it was relatively certain to not mess up a gasifier, and was also relatively simple and cheap to make or buy.

"bio bricks," though I am not familiar with them personally, sound like they'd be another "off the shelf" thing someone could have or buy if they run out of cordwood- and I recall mention that they are considered OK in a gasifier boiler. For a non-auto-feed system like a gasifier, they might be easier to handle than pellets anyway
 
Like these?:
(broken link removed to http://thepelleteer.com/faq.htm)

these?:
http://burnwoodpellets.com/
(nice instructions on use)

these?:
(broken link removed to http://www.energex.com/common/product_prometheus.php)

or these?:
http://www.ravenfirewood.com/alternative_fuels.htm

I'm sure there's more. But, the big question: These are designed for wood stoves and fireplaces. Is the burn chamber of the wood gasification unit too hot? Would it weaken/soften/damage/melt the basket?

You could get really big pellets and skip the basket.
http://www.biopellet.net/ (Lists NE dealers.)
http://ecologicalwood.com/ (Lists NE dealers.)

(broken link removed) (I bought some of these in Maine.)
http://www.mainebiomass.com/products (Sells Bioflamme in Brunswick, ME. With prices. Manufacturer says 350# biobricks = 1 cord BTU equivalent)

I am not affiliated with any of these companies.... wish that I were!
 
Yea, that's the idea. I think the heat would be ok because it doesn't get real hot until the smoke passes into the secondary chamber.
 
True with your Tarm, however many people have single chamber Seton designs.

Highlights are mine.
http://www.rohor.com/
"This boiler is the result of an extensive three year R&D;project completed over twenty years ago. First we discovered that the heavier tars and creosotes start burning above 1200° and steel starts to break down at 800°. This is the reason steel wood stoves burn dirty and do not last long. If you surround the fire with a steel fire box and water you remove the combustion heat before it reaches the temperature necessary for a clean burn. We burn the wood in a six inch thick refractory fire chamber surrounded by three inches of high temperature insulation and an airtight steel skin. The fire box temperature exceeds 1800° and the skin temperature is less than 100°."
http://www.greenwoodfurnace.com/products.html
"As the fire grows, fresh air flows in through the air intake manifold (B), fanning the flames in the ceramic firebox. The gas reaches 2000º F before flowing out of the firebox and down the flame path toward the exhaust vent (C)."
 
Yep, on those designs the basket would probably melt down into a pool of slag.
 
I was wondering if you could burn wood chips in that basket. I have a TARM so hopefully the box dosen't get that hot. I've heard others say that its hard to get them dried out, but I figured that if I only burn one load a week, its that much less cord wood I have to buy, and chips are free.
Say take a couple of 5 gallon buckets, spread them out in the basement next to the furnace and stir them each time I go down, they should be fairly dry by the end of the week.

Greg H
 
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