[Stoves] ***SPAM*** Re: ***SPAM*** Re: ***SPAM*** Re: ***SPAM*** Re: Stoves Digest, Vol 149, Issue 10

[Kevin McLean]

Dear Crispin,

Please keep in mind that I must keep this ultra simple and ultra cheap.
When I add things, there must be a big benefit or adoption rates will
drop.  I am willing to settle for less than perfect.

But I always welcome your ideas.

What are the functions the of the enclosure?  I'm sure it will block the
wind when used outside.  Will the mass steal heat that could be available
to the cookpot?


On Tue, Jan 17, 2023, 2:39 PM Crispin Pemberton-Pigott <
crispinpigott at outlook.com> wrote:

> Dear Kevin
>
>
>
> That would cook so-o-o much better if you surrounded the fire with
> bricks.  You could leave access on one side, but I think a spare piece of
> sheet metal leaning against the hole to close off all air would do just as
> well.
>
>
>
> There is going to be a lot of air leaking between the bricks so try
> surrounding the whole fire.  Maybe it would take 7 stacks of 4.
>
>
>
> Those bricks were probably moulded using a wooden frame with 6 of so
> formed at a time.  That same principle can be used to make a wooden frame
> with slots.  Fill the whole thing at once, and tip them out to dry.  Same
> as with bricks.   The technique is called “slop-moulding”.   You make it
> wet enough to flow reasonably when pushed, throw in a load, push down a bit
> to fill the cavities, then strike it off with a flat stick.  Tip out the
> set of 6 or 8 “sticks” which may require the mould cavities to be tapered
> 10 degrees or so, because it is sticky.
>
>
>
> After some time in the sun they will be dry enough to stack criss-crossed
> for a long drying period like a week or a month. Being very dry is
> important.
>
>
>
> Good luck
>
> Crispin
>
>
>
> *From:* Stoves <stoves-bounces at lists.bioenergylists.org> *On Behalf Of *Kevin
> McLean
> *Sent:* Tuesday, January 17, 2023 8:21
> *To:* Discussion of biomass cooking stoves <
> stoves at lists.bioenergylists.org>
> *Subject:* [Stoves] ***SPAM*** Re: ***SPAM*** Re: ***SPAM*** Re: Stoves
> Digest, Vol 149, Issue 10
>
>
>
> Dung has better uses than cooking fuel.  (Some of the nutrients for
> fertilizing can be extracted by washing.)  But hundreds of millions will be
> using dung as a cooking fuel for decades. Let's improve it.
>
>
>
> We've also been testing dung sticks upright in a metal band.  Preliminary
> results indicate they burn much hotter and cleaner than dung patties.  Here
> is a video
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1zlTqdTdTBOTlRUt55mPDlonCEvRzfdrL%2Fview%3Fusp%3Dshare_link&data=05%7C01%7C%7C056d1b9135d7493d002b08daf89f67c8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638095660822530235%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=8IHK%2BwdkrtcM0v%2Fx5bfrCIK%2FzW7Hw0v8MHqzvCUuTsc%3D&reserved=0>.
> But this really needs to be tested in India by someone who cooks with dung
> patties.
>
>
>
>
>
>
>
> Kevin
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