[Stoves] Improving Thermal Efficiency (TARP-VE)

[Alex English]

Crispin,
You have provided an interesting discussion of heat transfer and 
buoyancy effects under a horizontal surface such as a pot bottom. I am 
still struggling to come up with the right metaphorical imagery to go 
with your description. Micro thunder heads bumping their anvils on the 
pot. Anyhow, would it follow that a small rim extending down on the 
outer edge of the pot bottom would prevent hottest gas molecules from 
slipping up the side of the pot before it had given up its heat and 
dropped low enough to pass under and around the rim edge. This is a bit 
like trapping supper heated steam in an airless drier.
Certainly a flow restriction, but with the increased space you describe 
in you example, a tolerable one?

Alex


On 04/06/2012 3:25 PM, Crispin Pemberton-Pigott wrote:
>
> Dear Frank
>
> I will use Deans rather helpful list as a starting point to expand the 
> topic and perhaps provide additional insight.
>

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