[Stoves] the 150 gasifier in operation in Vietnam (Matt Redmond)

[ajheggie at gmail.com]

On Tue, 6 Mar 2012 08:54:51 -0500, Matthew Redmond wrote:

>Kevin,
>
>You make a good point about both temperature and atmosphere being important
>as to whether a material will oxidize.  If there was 0% oxygen available,
>oxidation would not occur even at high temperatures.  However, when the
>stove is turned off, the wire mesh would still be very hot, and probably
>able to oxidize in atmospheric air.
>
>Silicon Carbide seems like a reasonable mesh choice - chemically stable and
>able to withstand high temperatures. It even has a higher emissivity than
>stainless steels in the 0.7-10 micron wavelength range (red visible light -
>mid-IR range), meaning that it will emit more EM radiation than a stainless
>steel at the same temperature.
>http://www.pyrometry.com/emissivity_materials.php
>
>I was able to find some Silicon Carbide meshes using a google search for
>"silicon carbide mesh". Note they are not called wire meshes, but are just
>called meshes. They are a bit expensive, though.
>
>Perhaps some inspiration can be taken from lanterns used for camping?
>http://en.wikipedia.org/wiki/Gas_mantle
>

Thanks for the response Matt, you don't appear to be subscribed to
[stoves]?

I apologise to the list for the reams of digest appended to Matt's
message getting through, I approved the post, as it came from a non
member but was on topic, without seeing how large it was.

AJH