Windmeadow Labs

Hi,

The version I've read of this seems different to yours. The one I read of, which apparently was used in WW2 when petrol was rationed, involves burning charcoal, not wood. You burn it, as you say with a limited air supply, but also you add steam. The charcoal, basically carbon, takes some of the O from the H2O, and some from the air, the result being as you say, hydrogen and carbon monoxide.

Where were you thinking the hydrogen would come from in your design?

It seems what you've designed is actually a simple charcoal-making oven. The gasses that come off are simply the more volatile plant compounds, which burn, yes, but very dirtily. It's almost ENTIRELY tar!

I think some re-planning is required. The idea is to power it with charcoal (hence, no tar), and add very-hot dry steam. The output is a mix of CO, CO2 and H, of which the CO and H are the end-result fuel. Exact control of the air intake is vital.

But yes, I've read reports that in WW2 Britain, cars would drive around with enormous balloons / bellows type things on the top, full of this "producer gas", with the boot converted into the charcoal-burning gas producer I discuss (since I imagine it needs producing constantly, even a big balloon full of producer gas is low in energy value, so you wouldn't get too far without having it produced on-board).

A way of running your car on charcoal, but NOT wood!

The air pipe enters the can tangentially and causes a cyclone effect in the top of the can which mixes the air and wood gas thoroughly. The result is the woodgas burns with a powerful roaring flame like a propane torch.Dissertations | Essay Help | Buy Research Paper

Would be good for small scale fuel production for homes. Syngas and charcoal.

Is it possible to gasify liquids?

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i like the fact how some call this not full gasification or distillation.
this is as full as it will get in survivel.
this type of forced, may not be down draft or up draft type, but when the power gos out, just how are you going to suck the gas out of the gasifier to get it started, pucker up, LOL.

with this type of forced gasifier the wood/ turned charcoal can be use as fuel to heat the next batch of wood placed in side.

for thouse who think this is just distillation, their is no cooling process to force condensition to make a product like alcohol.
this fuel burns hot right out of the can.
but you can add a type of intercooler to cool the gas to make a richer fuel, the draw back is the amount of tar that will clog the intercooler.

ovvvvv all right :)
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You seem to not know the difference between the words "were" and "where" and "to" and "too". Illiteracy is a terrible thing.

If I recall correctly I think my grandmother used to have one of these as a backup whenever the power goes down. It wasn't quite the same mechanism though but I think I can still find it and see what's left of it. Hopefully I will make it function again without calling my Atlanta plumber...

this seems to be really good, accept its not full gasification as you said.

Do you know of any simple way to modify this design to produce a downdraft to create full gasification?
please email me if you know how, thanks in advance sir.
canadian

canadian

i am actively working on making a 'woodgas' lawnmower. small scale. and i want to do it in the manner that i get biochar out of it (look this stuff up, it could really make a difference in farming, pollution, ect) I would like to talk to anyone else who is actively working on a woodgas lawn mower.

Very cool, but I would be too concerned about carbon monoxide poisoning even if I were doing this outside...I'm not exactly sure how much carbon monoxide you need to get poisoned, but a couple nice whiffs are enough to keep me away.
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Simon S
San Francisco DUI lawyer

This is a great idea. Using vegetable oil is also a good idea. Thanks for the info.

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hello chad
im a grade 12 student and was searching for quite a while on how to make a simple gasification apparatus

this seems to be really good, accept its not full gasification as you said.

Do you know of any simple way to modify this design to produce a downdraft to create full gasification?
please email me if you know how, thanks in advance sir.

What makes a gasification Outdoor wood furnaces so unique? It is a whole new way of burning wood.

I know a plumber in AZ that has a portable storage space full of WW2 wood burning generator power sources...cool collection...he's listed in Chandler...he actually is interested in selling or donating them

Last year, I used a glass flask with a stopper and a small-diameter tube, or "chimney" as I call it, sticking out of the side and then going up. I filled the flask with broken up sticks, then stuck the stopper on the fill hole. I hung it over a wood fire and lit the gas that came out the top. I was pretty impressed when it actually worked--I didn't think there would be enough gas flow to actually ignite. Unfortunately, I've never been able to keep the wood gas flame burning for more than thirty seconds or so. Why is that?

Wood-gas cooking stoves are perhaps the best answer so far. These are gasifiers that produce gas from wood and then burn the gas, leaving ash and charcoal. They're clean, fast and efficient.

mother earth ran numourous articles on wood gasifiers for automobile propulsion during the 70's

Any idea as to what was the net heat in to the net heat out? Also, the mass of wood used and the mass of charcoal produced? The efficiency of charcoal production and net amount of usable heat would be useful to know -- this could possibly be scaled up -- producing usable gas, as well as a good source of "bio-char"

"Bio Char" is a more useful way of using charcoal than as an energy source!

I read thru it but the fact still remains that the viedo is not gasifications as such but distillation. The former creates "Producer Gas" the Later drives off combustible products like, acetone ,wood alcohol, and phenols etc. These are what you show burning in the video not "Producer Gas". i have been playing with a simple down draft retort using a combination of home made pressed fuel blocks (straw , paper, plastics, dung..etc), and have a first hand experience with the retort chemistry. I guess i was being a bit anal here but i would rather be anal than have someone misunderstand the process. We may need this technology again If gas goes to $10 a gallon like some people are prodicting. Keep up the experiences though it never hurts to have more eyes and hands on the process.

The Url below will explain a real Gasifier for you, not a charcoal maker. :)

http://www.gengas.nu/byggbes/index.shtml

If your technically incline, go to the following url its even better.

http://www.fao.org/DOCREP/T0512E/T0512E00.HTM

After reading thru these two sites you might want to rename ur Video to "Charcoal Maker Demo"

Good Luck Guy regardless
Rip

What your doing is distillation of wood not gasification. If you had been producing actual C0+H+Methane (producer gas), you would have ended up with nothing but ash in the can not charcoal. You need to read about the process of Gasification before you publish a page like this. Sorry but this demo of yours is bogas guy!
Rip

Chadphil,

Thanks for a very simple and convincing demonstration of producing woodgas in a small retort.

I did a similar demo, but I force draughted the air into the top of the coffee can - about 3/4 of the way up through a 3/4" pipe.

The air pipe enters the can tangentially and causes a cyclone effect in the top of the can which mixes the air and wood gas thoroughly. The result is the woodgas burns with a powerful roaring flame like a propane torch.

I used woodchips as the fuel, and it burns like crazy for 5 minutes - with no need for the camping gas stove to get it started - I light mine with a heat gun.

A friend made a big cyclone burner, with a forced air blower , 40" diameter and 40" deep, filled with woodchips. This burns for 4 hours with a 100kW (340,000 BTU) flame and gas temperatures of 1650F (900C).

Have fun.

Ken

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