[Gasification] a proposed mobile gasifer concept

[Harmon Seaver]

Frankly, I think it's a bit of a waste of time and effort. Much easier
to make ethanol, even on a small scale, and even easier to run the big
diesels on it. Two ways of doing it -- mix 1-2% of biodiesel with
straight ethanol and run it through the regular pump and injectors.
Or, use a kit that they were selling back in the '80s -- which injects
ethanol into the air intake downstream of the turbo. Both of these
presuppose a turbo with knock sensors controlling the wastegate. Not
much of problem with any truck doing commercial hauling today -- but
with an older diesel, with no turbo, you need to add an extra
headgasket to drop the CR to 18:1 or less.
     Sorry -- gasifiers are great for stationary engines if you have
little else, but for commercial use, on the road -- it's going to be
either ethanol or CNG. And from what I've been reading lately, it will
probably be mostly ethanol.


On Nov 20, 2007 6:40 PM, Philippe Raufast <praufast at free.fr> wrote:
>   Daniel,
>
> As you can see here : http://forum.aceboard.net/12980-1246-27054-0-PROCEDE-GENEFAG.htm
> It has already being done here  in France, after the first oil shock, by the Calberson trucking company .
> The gasifier system was called GENEFAG (generateur fuel air gas). As you can see from  the schematic
> it was of standard Imbert type, running on chopped wood.
> Starting fan, igniter, air and gas valves were operated electrically from the dashboard, the driver had various gauges to monitor the system.
> You can see that the "packaging" was very neat, using the free space between the truck and trailer
> to install the "box"  containing the whole system.
> The smaller Saviem SG2 payload area was a bit shortened  .
> The Renault truck on the first picture was burning 500 l of diesel to cross France from north to south (1000 km) .
> With the gasifier fitted, it was using 200 l of diesel and 1000 kg of wood for the same distance, saving 300 l of fossil fuel.
> The payload was 25 tons. I hope you will like it ...
>
> Regards, Philippe.
>
>
>
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-- 
Harmon Seaver