[Gasification] Getting both heat and char .....

[Energies Naturals C.B.]

How amazing!
In such a short time sooo many good ideas!
And I think Doug is right:

First step is a demo unit to learn with and to show the feasability of the project by baking a few test pieces.

Second is a first upwards step towards a semi "serious" unit.Perhaps together with a professional ceramist.

Third would be after there is a real commercial perspective . Here comes the idea of additional charcoal production back.
A more sophisticated installation, perhaps like Roland Siemons'would be great. Know how, money, investment,and partners wanted!

I have just spoken to Pilar, the ceramist. She is recovering from a severe infect and not yet fully operational.

But she tells me a 150-250 l unit, 0.5 x 0.5 x 1m could do to bake the necessary standard 300x300 x 5 mm test pieces.

A  seemingly simple Agua Das gasifier, perhaps with more sophisticated air control could perhaps work.
Brass smelts at roughly 1200 °C, quite similar to the 1300 we need.

I guess I can find a siutable kiln and convert it to gas. I have never done this, so any hint and help is welcome!

The next step is building the right kind and size of gasifier. Next the burner(s), matching both gasifier and kiln the kiln.

BTW, what are temperatures in a typical gasifier stove (inverted flame) ?

Looking foreward to your ideas!

Rolf

 


On Sat, 7 Jan 2017 07:07:58 +1300
Doug <doug.williams.nz at gmail.com> wrote:

> Paul and Colleagues,
> 
> Quite awesome and the smelting pot demonstrates how much high 
> temperature can be created. Some version of this would I think be 
> adequate for Rolf's first proof of concept trial, better than using his 
> gasifier. How big have you made one without compromising the key parameters?
> 
> Our colleagues are responding to the wake up call, and when a few $$ are 
> available,  the ceramic project will be able to draw from the best 
> people and technologies in the business. In the mean time, we can all 
> contribute to assembling Rolf's projects needs, and I hope others will 
> join in and help make it happen.
> 
> Doug.
> 
> 
> On 06/01/17 15:40, Paul Anderson wrote:
> > Doug,
> >
> > The AVUD method is ignited at the level of the "grate" (actually a 
> > pipe with holes on side and bottom, so the char can pass around the 
> > pipe, drop below the hot zone, and be extracted at regular 
> > intervals).  The heat rises and pyrolyzes the biomass above, and 
> > additional fuel is added regularly on top of the fuel pile.   That 
> > makes it a continuous process.   No need to stop.
> >
> > The tarry gases exit and are combusted with turbulent air, coming from 
> > an air compressor.   The combustion is quite complete and clean.  This 
> > has similarities to the    Dasifier    made by Agua Das almost 20 
> > years ago.    You should read these materials at my website:
> >
> > http://www.drtlud.com/?s=dasifier that link leads to
> >
> > http://www.drtlud.com/wp-content/uploads/2015/01/Dasifier-Foundry-Gasifier.pdf 
> >
> >
> > and see a 2012 video with Das himself melting metal with woodgas at:
> >
> > https://www.youtube.com/watch?v=t08tj4NWUQY
> >
> > Many years ago Das was one of my teachers and mentors, and a good 
> > friend of Tom Reed.
> >
> > Paul
> 


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Energies Naturals C.B. <energiesnaturals at gmx.de>