On 12/09/2012 10:34 PM, jim mason wrote:
other than the explosive risk
There is an interesting question here:
Is there an explosion risk if the gasses have not been diluted by the
atmosphere?
Let's start with gasoline, if we evacuate a bell jar and inject enough
gasoline so there is a layer of liquid gasoline on the floor or in a
pan, and we generate a hot arc 1/2" above the gasoline, will there be an
explosion? The correct answer is "only if there is an air leak."
Without an air leak, there will be no oxidizer, fire (or explosions)
require three things: Fuel, Oxidizer and Ignition. Fuel is gasoline
(in this case), Ignition is the spark, but where is the oxidizer?
If woodgas has excess oxidizer as it exits the reaction zone, it simply
burns off the extra gas. So, unless there is an air leak, the reaction
can not occur. However, if there is an air leak in _any_ fuel system,
there will be severe problems.
Dave 8{)
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