[Gasification] OT - Six Stroke Engine

[Thomas Reed]

Dear Ken and All:

I know that there are statements that  the flame speed of producer gas 
is low compared to gasoline, and that it requires a slower turning engine. 

On the other hand, the high hydrogen content of producer gas gives it a 
wide combustion range and fast burning properties.  Motorcycles are 
regularly converted to producer gas and they have high RPM. 

So I wouldn't worry about it.

The low speed reports may apply to producer gas from coal which have 
very low hydrogen content. 

Do it.

Yours truly,

TOM REED

Ken Boak wrote:
> Doug & list,
>
> What are your thoughts about the optimum rpm range for an engine burning 
> producer gas?
>
> Is it a case of matching the piston speed to the flame speed?
>
> Would 300rpm to 600rpm  be better for extracting more expansive power from 
> the producer gas, than a higher speed engine say running at 1500rpm.
>
> Are you suggesting that in a high speed engine, the producer gas charge is 
> still  burning at the time the exhaust valve opens.
>
> Any clarification appreciated.
>
>
>
> regards,
>
>
> Ken 
>
>
>
>
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