[Stoves] GARI FRYING STOVE

[Andrew Heggie]

Ronal

To answer your question:

"4.   I joined Michael Shafer In trying to find out why we got that strange
message on naming.  No response yet..
Anyone know why that might have come in?"

The recent list activity has attracted far more spam. I think the address
this auto response comes from joined on March 12, I have blocked it, so
hopefully posts to the list will no longer get this response.

Because there is a side discussion with a large number of CCs as well as
[stoves] the listbot is trapping many otherwise legitimate posts to
[stoves] as well as general spam.

Andrew


On Tue, 16 Mar 2021 at 01:17, Ronal Larson <rongretlarson at comcast.net>
wrote:

> Marc,  Christa, stoves list.  and ccs
>
> 1.  Christa has provided good guidance here. Thanks.   Be sure to read her
> book at
>
> https://energypedia.info/wiki/File:Micro_Gasification_2.0_Cooking_with_gas_from_dry_biomass.pdf
>
> 2.   Here is one possible way to get a start at roasting the gari: with
> much lower power levels
>
> 3.   I assume everyone on this thread will know the meanings of PA and SA
>  (primary and secondary air), but Christa’s book will go into those terms
> fully.  As well aa the placement of the holes.  It is relatively rare to
> have only a single combined air entry - but that is a natural choice with
> this new added inner cylinder - and the need to empty. The drum here is
> modified by only the single PA. + SA hole.  A 2 or 3 cm diameter hole
> should be enough.  Air supply controlled by a cone or other type “door”.
>
> With two inner cans,  there could be almost continuous roasting.
> Interchanging might be possible in less than a minute.
>
> That inner cylinder is sketched here as having half the drum diameter - so
> two can be made from a second drum.   This ratio should drop the max power
> level by a factor of four.  It would - at 27.5 cm - be a large TLUD.  And
> its height also would be large in the TLUD world.
>
> The new gap between the inner and outer cylinders provides multiple
> functions:
>
> a.  The inner cylinder can now be removed (with hooks?) for replacement
> and unloading (by tipping-over nearby).  Much more convenient than tipping
> a full drum.  Better to have two people make the exchange, but one strong
> person might do it.
> b.  It allows preheating of both primary and secondary air.  I show the PA
> + SA  entry hole below mid-height - but some testing will provide an
> optimum. (All on the same can if you can plug unused holes)
> c.    More efficient (more roasting for the same fuel input) - because of
> less radial hat loss.
> d.  Safer for the operator.
> e.   The inner cylinder diameter can be varied to give higher or lower
> power levels (toasting temperatures).  Half the outer diameter might be
> good enough if the turn down ratio (PA amount) can be made small enough
>
> The inner cylinder needs a cap at the bottom, with holes. Seven shown here
> - but the number depends on the size of the chisel or pick ax or drill used
> to make them.  Small enough that the produced char can’t fall through.
> Three or 4 caps can be made from one drum top or bottom.
> The cap can be welded to the cylinder - or secured withed with 40r screws
> through four corners starting with a square sheet steel of almost any
> thickness.
> The inner drum can rest on three or more bricks or flat stones.  Their
> height can be used to vary the gap at the top.
>
> Instead of making two inner cylinders  from a drum - it may be cheaper to
> use new thinner sheet steel
>
> There are many means for getting a best gap for the flame exiting under
> the “wok’’-sshaped roasting pan.  None shown here.
>
>
> Anyone see why this sort of an inner cylinder might not work for Marc.?
> This still looks like a good way to get more biochar to put in the ground
> - and grow bigger casaava/manioc/yucca.  And make money (from the produced
> char) instead of spending time or money on fuel.
>
>
> 4.   I joined Michael Shafer In trying to find out why we got that strange
> message on naming.  No response yet..
> Anyone know why that might have come in?
>
>
> Ron
>
>
>
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