Gas Producer

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Gas Producer

Postby gyro » Tue Apr 03, 2012 3:59 pm

Has anyone here thought of building a gas producer something similar to that used during the war to run automobiles? The principle is quite simple. You have two chambers the bottom one being the fire box the top one (sealed with strong door) is the oven. Also you will need a 44 gallon drum and copper tubing to make cooling condenser. The gas is fed into an amphometer constructed using extra large Tractor inner tube weighed down with rocks or concrete lid. The idea is to heat wood or even dry weeds in the top chamber while sealed releasing the gas through a coil in drum filled with water to the amphometer. Once the wood or weeds turn to charcoal the charcoal is burnt in bottom fire box to start the process all over again.
There has to be a non return valve fitted in gas supply line from gas producer to prevent gas from flowing back when door is opened to remove charcoal and replenish wood or weeds. (Anything combustible such as cardboard, paper, cotton rags etc can be used but not plastics).
The gas can be used for heating, cooking, drive engines etc the gas pressure is only as high as the weight used on the inner tube and will remain constant while it is inflated with gas.
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Re: Gas Producer

Postby Tracker » Tue Apr 03, 2012 5:43 pm

.
Use wood, and (I presume) you would end up with charcoal, and so you could have two bites at the cherry, and burn the charcoal in your home heater..
I must admit that I could only imagine your contraption being used at home to (Say) power a generator, or perhaps feed it into a gas-Fuel-Cell to produce power directly.
Can't imagine that it would be all that enviro-friendly as you have the main heating fire, to stoke up, in order to produce the gas..
I would be concerned for the nasty contaminants in the gas, that might limit the life of the device being fed by the gas..
..
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Re: Gas Producer

Postby jaahn » Sat Apr 07, 2012 9:58 am

Hi,
I have no direct information, however my father did talk about the one he had, during the war fitted to a Ford Pilot. He laughed about the 70% loss of power running on the producer. Also the great weight of the unit and the bags of coke strapped to the front guards. I have a photo somewhere of an epic trip to Sydney for some reason.
He was no mechanic but like most people of the time could do "whatever" was required to get things running. He commented on the filthy nature of the gas and the cleaning required to keep it going. I believe he was very glad to dump it asap.
Obviously a stationary setup would be easier thay a moible one. Note however the 70% power loss is due to the non flamable nitrogen in the fuel gas. So a bigger engine is required to pass the extra volume through. Any older style engine would probably run OK on the gas if it was scrubbed of dirt and ash in a water bath before going to the engine!
Cheers Jaahn
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Re: Gas Producer

Postby Tracker » Sat Apr 07, 2012 10:40 am

jaahn wrote:He commented on the filthy nature of the gas and the cleaning required to keep it going. I believe he was very glad to dump it asap.... Any older style engine would probably run OK on the gas if it was scrubbed of dirt and ash in a water bath before going to the engine!

and I think that sums it up..

Mind you there are micro power generation plants based on burning rubbish.. That is doing the SAME thing but without any intermediate stage, and so the heat from the gas generates steam for power..
Same-Same-but-different... :roll:
..
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Re: Gas Producer

Postby Smurf1976 » Sat Apr 07, 2012 3:19 pm

Manufactured gas produced from solids (coal, wood etc) has always been somewhat "filthy" by its very nature.

"Town gas", as it was properly called, was used widely until the introduction of natural gas for reticulation to households and business. The gas was historically produced from coal although in later years production from oil (heavy fuel oil, natpha and as a by-product taken direct from refineries) was in widespread use with the actual sources varying between cities.

Then along came natural gas. Melbourne and Adelaide got it in 1969 with Brisbane and Perth about the same time. Sydney came later in 1976 whilst Launceston continued with town gas until the late 1990's.\

There's a reason why gas use boomed after natural gas replaced town gas. Town gas is, quite simply, filthy stuff compared to LPG or natural gas and the same would apply to any gas produced in the manner described in this thread. It will burn, but it's not "clean" as such.
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Re: Gas Producer

Postby parsa » Tue May 29, 2012 8:21 pm

I'm looking for the potential of the gas producer process to grow in 10 next years and also the countries are prior of coal gas. Does anybody know or have a an article or something about these questions?
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Re: Gas Producer

Postby gyro » Wed Oct 17, 2018 10:09 pm

I have just purchased a 3 HP Cooper engine and wish to run it on wood gas to drive a 48 volt Dc generator has anyone out there got any drawings of this sort of thing? gyro14u@bigpond.com
Thanks Tony
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Re: Gas Producer

Postby davidg » Thu Oct 18, 2018 1:30 am

You'd be better off producing "Bio-gas", more easily produced and much cleaner.
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Re: Gas Producer

Postby jaahn » Thu Oct 18, 2018 3:16 pm

Hi Gyro :)
Good luck is all I can say. Some years ago I did some experiments on petrol engine driven alternators and made a couple of battery chargers for some friends. I was using a 5.5HP Honda to drive various car alternators. I was surprised at the power required to drive them at full output.
It was possible to bring the engine to stall running at ~ 50amps and 28volts, OK at 14V. It just did not have enough power. The engine was running properly. I ended up with an 9 HP to do that job. :geek:
It might take more power than your 3HP would put out on real fuel. Definitely not on producer gas with 70% power loss. Also depends on the amps required of course !
Biogas is an option as said but also has serious power loss due to the inactive gas. Or you need a scrubber as well. No so sure about it being "cleaner" either. The acid is a bit severe. i have some old ideas etc on that too but I believe you can get all the hopeful ideas on the internet these days.
Plenty of perpetual motion motors which do not even need fuel there too :roll:
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Re: Gas Producer

Postby lantern » Fri Oct 19, 2018 7:09 am

We used to make a 20A 24V battery charger using a 2hp petrol motor.
Reason we used 2hp was we couldn't find a 1hp one.
Trick was using a three phase electric motor to make the power by turning it with the motor, and switching different capacitors across the motor windings to give it different loads.
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