[Stoves] Stirling to drive fan

[AJH]

On Sun, 24 Sep 2006 11:53:10 -0700, Tom Miles wrote:

>Send your drawings to tmiles at trmiles.com and view and comment on them at
>www.bioenergylists.org 
>
>At least for the older participants. :-)

I don't know where I figure in that but I couldn't remember my
username!

Anyway I sent this to Steve and I would invite comments on anything
except my drawing skills:

"For a stove I think the pile would form the secondary combustion
chamber if metal to metal so Delta T could rise to 600C. 

For the semiconductor device I don't see how you could easily get all
the heat flux through the device without a massive ally or copper
heatsink, so I see it as an add on to the combustion chamber. With
3kW(t) going up the flue and only needing to develop <20W we can power
lamp and stove.

To have a light with no need for waste heat is the bigger challenge.

Note many of the stoves we speak of have no flue stack or chimney, it
just vents past the pot.

I was thinking something could be done with a nickasil lined aluminium
cylinder and head inverted, such as an old chainsaw pot. With a P4
heatsink on the cold side."

I've had a bash at visualising the sort of things I am thinking of:

http://www.loampitsfarm.co.uk/stoves/TEGlayout1.gif
http://www.loampitsfarm.co.uk/stoves/TEGlayout2.gif

I'll leave the picture there for a while.

AJH