[Gasification] spark discussion on dry filters

[andy schofield]

Howdy Gordon,

  It wouldn't take a much bigger engine (woodgas fueled) in a pickup to beat 
me in a race! Also nothing has been optomized yet on my worn-out ol' rattler 
Ford. However, I do have my eye on a one-ton with a 460 in it. He He.

  High-voltage precipitator elements may be much eaiser to clean, but my 
budget constrains work to the older types of filters, that use less exotic 
things like straw and sawdust. Gordon, have you seen any product (or 
components) off the shelf? I wouldn't see problems with a stoutly-built 
system, if air gets in and the elements arc. It might be a bit frightening 
to the un-initiated though. Eliminating free-oxygen in the gas you are 
making would be the key, for certain.

   Yes Gordon, a manifold on the gasifier air-inlet. It seems when the flow 
is fully controlled to only air-into the gasifier, on occasions when gas 
-demand falls off sharply (after full-power operation) the gas now wants to 
come out the engine combustion-air inlet. The gas has to go somewhere.
A saftey-flare located somewhere high and to the rear of the machine would 
be best.

   A Bag, bellows or a "gas-surge accumulator" could be simple and robust, 
however the physical-size nessesary to hold many cubic-units of gas is 
large. When the engine is stopped after a full-power run, some kind of 
thermal-inertia in the gasifier continues to produce gas for several 
minutes.

  Andy


> > ..................  Having gone 700 miles in the F150 so far
>........................
>   I am Green with envy. I guess I won't beat you cross country.
>
> >   Has there been a vehicle system for particulates smaller than is
>captured
> >in a cyclone?
>   Electrostatic?   Or would explosions be too much of a problem if air
>got in with
>the gas?
>
> > ........ Clouds of smoke left in traffic behind the system have been
>eliminated by
> >using a nozzle distributor manifold equipped with a suction valve for
>total
> >primary air  ...............
>    Are you referring to before the gasifier?
>
> >................... Direct operator or (gasifier-system) variable
>Injector dutycycle  is
> >next after a good filter ........
>
>   Fascinating, duty cycle from the Ford computer to a gas proportioning
>valve??
>
> >.......  I'm finding excess gas spills out of the mixer when I decend a
>particular
> >hill, then climb up the next hill. This needs to be ducted somewhere
>safe!.........
>
>You have probably read Doug Williams comments on this problem.
>  How about to a bag or bellows?
>
>Keep on cooking
>Gordon
>from the other side of the pond(Lake Michigan)

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