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Energy Efficient Afterburner - Patent 5460511

PostPosted: Fri Feb 25, 2011 1:16 pm
by Tomfirth
I'm interested to know what the expert's opinion is on this device: ... nt-5460511

Re: Energy Efficient Afterburner - Patent 5460511

PostPosted: Sat Mar 19, 2011 11:57 am
by Tomfirth
Could I get W or any other expert to comment on this please? I know some anti-wood-smoke people see this as a possible alternative, but I have my doubts.

Re: Energy Efficient Afterburner - Patent 5460511

PostPosted: Sun Mar 20, 2011 8:40 pm
by Wilberforce
Tom I am a fully-trained (but retired) automotive mechanic. I am qualified in this area.

Let us take a look at a car catalytic converter.
This device works best when fed from a tuned engine's exhaust, with precise air/fuel ratios, spark timing, etc.
Any deviation from this norm can result in massive converter malfunction. For example, a poorly-firing spark
plug or plug wire can send large amounts of unburned fuel into the converter. This causes a runaway temperature
rise in the converter core, up to the point of meltdown. At that point, the converter's core, which is principally
ceramic, cracks and crumbles, as it is being exposed to a severe temperature gradient (think of cracked china.)
Since the core melts (yes it can get that hot) the device then ceases to function.

Now imagine a wood-burning stove, with it's (A) ultra-wide variations of temperature effluent, (B) wide variation
of combustion efficiency, and (C) the lack of precise electronic controls (which the modern car has) Using an
example of a disconnected sparkplug wire in a car causing malfunction, or even destruction, of a cat converter's
reactor element, I can see how a similar anomaly can also possibly happen in a catalytic converter-equipped
wood stove. Especially since the average wood-burning user has no idea of how to create a small, hot fire; but
quite the opposite, creates a huge, over-fueled, cool-burning, smoldering mess! In that case, the converter
would not last long at all.

Re: Energy Efficient Afterburner - Patent 5460511

PostPosted: Tue Mar 22, 2011 4:35 pm
by Tomfirth
I suspected as much. Thanks W.