[Gasification] Two Engines One Gasifier
gasman at welho.com
Wed May 20 08:10:08 CDT 2015
There are two logical "formulations" that, when both used, gives a
practical working solution for an "independent" motor starting from a
A common gasifier delivery line usually (in a good system) keeps below
50 cm H2O.
A motor with tight valves, without overlap and hidden crankcase
ventilation into the manifold develops ~ 500 cm H2O at cranking.
Combined with the fact:
Identical pressure drops over identical openings (slots) results in
IDENTICAL FLOWS. (with similar fluids)
Using identical ganged twin flaps with identical geometry for gas and
air will deliver a 50/50 air/gas mix, if starting both from
The secondary air intake pressure has to be regulated to equal the
pressure with a membrane and air-line flap, sensing the resulting
air-pressure versus the gas-line pressure.
This way the total pressure drops in both "legs" will constantly be
To furthermore assist slow crank starting, the twin-flaps will be closed
by a trimmable spring closing the flaps COMPLETELY.
A manifold-vacuum membrane or cylinder, diameter ~2-3" opens the
when the spring starts to give in for a vacuum of ~100 - 200 cm H2O.
This opening increases as the motor fires, and has to be controlled by a
manually settable stopper = idle limiter!
When fired, there has to be a "change over" to automatic run...
------ Originalmeddelande ------
Från: "Jeff Davis" <jeffdavis0124 at gmail.com>
Till: "Discussion of biomass pyrolysis and gasification"
<gasification at lists.bioenergylists.org>
Skickat: 30.3.2015 03:47:47
Ämne: [Gasification] Two Engines One Gasifier
>Is it practical to fuel two engines with one gas producer? I think a
>check valve in each fuel line would be needed but would it be a problem
>to get the second engine running? My system would consist of a charcoal
>gas producer with two 6.5hp engines.
>"Once an owner has got used to charcoal gas he will never revert to the
>more expensive fuels", Geo Bray
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Gasification