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<div class="moz-cite-prefix">On 12/09/2012 10:34 PM, jim mason
wrote:<br>
</div>
<blockquote
cite="mid:CAB5Uy2xAcXc=XC-gssrZ1jELajj3R6Vdfx++WhjzfZP_fomZEw@mail.gmail.com"
type="cite">other than the explosive risk</blockquote>
<br>
There is an interesting question here:<br>
<br>
Is there an explosion risk if the gasses have not been diluted by
the atmosphere?<br>
<br>
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." <br>
<br>
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? <br>
<br>
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.<br>
<br>
Dave 8{)<br>
<div class="moz-signature">-- <br>
<br>
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