[Gasification] OT - Six Stroke Engine

[Bob Stuart]

I am very surprised to learn from Doug that apparently I could run an  
engine on producer gas all day and not have a wet finger sizzle on  
the exhaust manifold, even with no radiator in use.

I think the real problem with this engine is that in order to  
generate a useful steam pressure, it has to keep the combustion  
chamber temperature well above 100 C.  There is a useful gradient on  
the way to the water jacket, but nothing like the temperatures found  
in efficient boilers.  Running the exhaust through the water jacket  
in the head would help, and it could also superheat the injection  
water first.   Smokey Yunick and others have worked on hotter engines  
with cooling only by the intake and exhaust under the name  
adiabatic.  They prefer carbide parts to lubrication.

I suspect that Mr. Crower's 160 employees are not on this project,  
and have access to a much larger dyno.  Presumably, he hasn't rigged  
one for the testing yet because he is still trying basic variations  
where just running eagerly is a success.

Best,
Bob Stuart

On 2-Jun-07, at 7:41 AM, Michael Redler wrote:

> Goug, Kevin, list,
>
> Well, since I wasn't prepared to offer an opinion of my own and your
> assessment, along with Kevin's seems reasonable, I guess this  
> thread has
> ended (for the time being).
>
> Thanks.
>
> Mike
>
> doug.williams wrote:
>> Hi Mike,
>>
>> You Ask:
>>
>>
>>> I wonder if this is a candidate for use as a gasifier engine:
>>>
>>> http://www.autoweek.com/apps/pbcs.dll/article?AID=/20060227/FREE/ 
>>> 302270007/1023/THISWEEKSISSUE
>>>
>>
>> The short answer is no, for the same reasons that you remove as much
>> moisture from producer gas as you can before ingestion into the  
>> engine.
>> There is just not the heat available to turn the extra moisture  
>> into steam,
>> or H2, and is why this engine works on gasoline, and has so much  
>> waste heat
>> available to make the steam.
>> Hope this helps.
>> Doug Williams,
>> Fluidyne Gasification.
>>
>>
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>
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Best,
Bob Stuart