7Hp Honda, test with exhaust, you can see the glowing reacting, sadly a bit dark
I will redo this testing also with a no load engine
Here a few pictures from the set up with piston pump and car generator
Posting one by one…
First the engine and piston pump set
Piston pump can run up to 57 liters a minute and max 50 Bar
Now ist set up for max 40 liters and max 30 bar.
Okay, now for the die hards… 
some of my observations and my sole opinion to it.
during the different tests with this small gasifier i have noticed the multiple effects from the processes involved;
2 important processes needs to be balanced according to the desired gas contents
The gas from this small charcoal gasifier at an outlet temp 40°C should be in normal conditions in a dry state.
if any noticeable condensation occurs, at relative low air speed at the nozzle, then most likely the mixture is rich in methane, caused by the “sabatier reaction”
( this is Co2 reacting with Hydrogen, forming Methane and water)
This is mostly effected by a coarse charcoal or cavity around the nozzle ( excess combustion area without conversion of the carbon )
Increasing airspeed at the nozzle or a vibrating nozzle ( exhaust) might do the trick
Second process, the so called “boudourd reaction” is the conversion of Co2 into Carbon monoxide and oxygen.
Since this small gasifier is not a “cross draft” a “kalle” or down draft system, care must be taken that all injected gasses will pass trough the hottest part of the reduction zone.
Since IC engines tends to react in their exhaust composition, depending engine load, air humidity, proper adjustment is needed.
The problem with to much “wet” gas is the acids formed and they will destroy the aluminium in the small engines.
I am open for discussion and ideas/solutions to prevent the acids to enter the IC engine are more then welcome.
You could try filtering through steel wool, that should react with the acid before it eats the engine.
Hi Gary H,
I reccon your tip is spot on… i think i does comes closest to what they used in the early days… iron ore for reducing the “acids”
so i am going to follow your lead and construct something for testing…
Thx
Koen
Hi Koen,
Hopefully you can buy it there, in my time in Thailand I found somethings very hard or even impossible to get. Sometimes it was much easier to buy things online and get it posted.
An alternative would be swarf from a lathe.
Gary
Hi Gary H,
I call everything what i want to find in Thailand “Unobtanium” and then i want to have it
Its always easy to build something simple in a difficult, complicated way…
Its a challenge to build complicated things the easy way 
Look what i am going to use as a nozzle tip…
I think you even find those in USA ?
Regards
Koen
The nozzle for the bottom port in its holder, for testing
I also can fit one nozzle in the lightning port
Nozzle size 10 mm diameter
Here a link to a document about the influences of the nozzles in a “crossdraft” gasifier, still useful for gilmore style i think.
https://docs.google.com/file/d/0B4CL3bqit0osY2Q4aldjYWgteEk/edit?usp=sharing
Testing how hot i could make the nozzles… ( made from fuses)
Used charcoal and a lot of air… White hot, stainless molten, glass molten, Iron ore starting to melt, but the porcelan nozzle not damaged, only glazed with a little of the molten glass.
The nozzle is easy to be sized by either abrasive disk or diamond cutter.
What did the ceramic fuse look like before you burned the rest of it off?
Hi Brian,
In a post above, the 2 nozzles are shown, i trowed them in the glowing charcoal.
In the picture with the left overs glowing parts ( nr 2 pic from last post) you can see at the left 1 nozzle, middle 1 nozzle with glass attached , at the right you see the iron ore klump.
I did grind the glas off for testing purpose, to see if its easy to modify the porcelan with standard tools
More info about one more test…
I tested the vacuum in the reactor, without filling it with charcoal, just for references.
It seems that the smaller nozzle would be preferable for our purposes
Rule of thumb: amount of gas, *0,6 off surface for the nozzle at almost zero vacuum.
That will reduce the amount of Carbon dioxide produced…
60% of the volume is external air sucked trough the nozzle, the rest is gaz from the sublimating charcoal.
so at 20mm carb diameter 
= 314mm2 surface
0,6 for air mixture
= 125mm2 for gas
0,6 for external air = 75mm2 = 10mm diameter
I achieved a max vacuum 100mm water colomb at full blower speed
with 20 mm i had only 5 mm water colomb
I am preparing a next set of power tests with the new nozzle, but, based on the info from the cross draft, this should be better then full sized.
Also: the amount of exhaust gasses, according Kalle ( where the translation say’s 17% Co2) this should be readed as 17% volume exhaust gas. ( not 17% Co2)
Next consideration: what if we could replace all the nitrogen by only Co2 ? ( 79% Co2 + 21% O2)
i wished that i could test that
Presentation of the Green Waste Charcoal Project to Dr. Sukhumvit from Khon Kaen University in Nong Khai, also present Dr. Kingminghae from the Udon Thani University and the Chief Administration, from Dan Si Suk, mr. Achirapat Singsaikhao
Thumbs up to the achievements of Keith Wayne and the DOW team
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Sunday 20 th October, 3 days after my visitat the Khon Kaen University Nong Khai, Dr. Sukhumvit gave me a surprise visit with a delegation of the
Royal funded Aoyama 2 School. ( Basic school Dan Si Suk, first public School founded by the King himself in Thailand )
This visit of Dr. Sukhumvit is prior to his trip to bangkok, to present the Green waste Charcoal project in the capital of Thailand.
More about this project at www.renewableenergythailand.com
The connection with the Thai university’s is made also on behalf of the MIT USA, who are interested in supporting the Green Waste Charcoal gasification project.
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Good Morning Koen ,
Thanks for the pictures and keep up the good work.
Hi Wayne,
Yes will do that
having the next load of visitors announced themselves already…
Politicians and Governmentals…
The project is kicking of as you can see on www.renewableenergythailand.com
I mentioned your achievements and the DOW as well.
It does impress a lot of people…
Maybe you can come over here and show them how its done ? …
I am using all possible ways to promote gasification so if you have more idea’s,…
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Hi Koen,
Will be interesting to see what the university does with it. There has been many Thai projects before trying get alternative fuels for poor farmers. Such as using palm oil to run Diesel engines, I think that was funded by HM also.
Any success getting the local people to copy what you are doing yet?
Gary