[Gasification] OT - Six Stroke Engine

[doug.williams]

Bob,

You specifically twist my response to Mike:

>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.

My answer was directed at the engine in question, not how to redesign it to 
possibly make it work with producer gas.
You are right that plenty of waste heat exits the engine on producer gas, 
usually between 6-800C, but this depends on how much moisture is present to 
slow the flame speed down, which can result in the gas still burning out the 
exhaust valves. No reference was made to the RPM of this engine, and that is 
important when producer gas enters the equation, as a fuel.

If you take into consideration, that the ignition temperature of clean gas 
is only  1,050C, it is easy to see that RPM becomes a critical factor of 
maximizing the energy of producer gas while in the cylinder, which given the 
chance, can behave like steam, in the torque produced from a continuously 
expanding combustion, instead of an explosive flash of heat.

Interesting as it might be to discuss engine designs, that subject is surely 
found in other forums with real expertise to support the discussion. Making 
gas that can fuel an engine without destroying it, might be a better use of 
the talent  members jointly display, instead of this forum being high jacked 
to discuss liquid fuels, and technology not relating to their subject 
titles.

Doug Williams.