While not a sustainable option for third world countries (they can't
afford the tariffs), McGill's Warehouse
http://www.mcgillswarehouse.com/p/2923/hf10-ceramic-fiber-blanket-2-8lbft3-or-128kgm3-f2acf6cg1ah1c
has a reasonable price for ceramic wool blanket. Given that insulation
of the outermost shell can result in much better cooking efficiency and
enhanced safety, might it be reasonable to use this to build a standard
test stove, and test other insulation choices for comparison. The
ceramic wool could, rationally, be used as a standard allowing diverse
testing sites to try different materials without importing them from
around the world.
Testing things like rice hull ash might prove it is BETTER than ceramic
wool, but finding it in [area of your choice] as well as Beech ash and
animal dung ash might be difficult, while such things will be easily
found in other places.
If, for example, preheated air is desired and too much heat loss occurs
without insulation, having a way to figure out how much insulation (to
start with), of what kind would be a good thing, IMHO. Yes, fine tuning
will still be needed, but this means it is from a likely good starting
place.
Comments are welcomed.
Dave 8{)
--
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at the men he has around him."/
Niccolo Machiavelli
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