Most dryers are relatively simple usually a box often 3 to 4 feet wide and
6 to 8 feet long.
and abour 4 feet high. These are usually covered with a single sheet of tin
and generally have
a substancial shelf built across abour 3/4 of the way up put the copra on
for drying. there is stron box built around the top
to hold the cocnuts in place. When initially loaded with cracked coconuts
this is heavy load. After firing several time with a smoldering fire
husk in a pit underneath. Tthere are a great many variations in style
quality and opperation. I have seen neatly made units
fired only by charcoal from burned down coconut shell to ones so rickity
they collapse an but the whole load of copra.
There has been much experiemtation elswhere India Sri Lanka in particular
but little adoption of anything else here
Obviously double walls insulation and better fire control are early step. I
suspect that perhaps Paul Oliver peopl in the Phillapines
will have lots of information as well.
,From: "Paul Anderson" <[email protected]>
To: "Discussion of biomass cooking stoves" <[email protected]>
Cc: "mtrevor" <[email protected]>
Sent: Tuesday, April 16, 2013 5:05 AM
Subject: Re: [Stoves] Applications of TLUD heat - not for cooking and
biochar and terra pretta
Michael,
At least as important as the source of the heat, the "dryer" device (the
application of the heat) needs to be described. Could be several models,
or just one. Please describe the options. And give us some numbers of
quantities, size of pieces, moisture content at start and finish, etc so
that the quantifiers among us can make some calculations on amount of heat
needed.
Paul
Paul S. Anderson, PhD aka "Dr TLUD"
Email: [email protected] Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 4/15/2013 5:27 AM, mtrevor wrote:
Dear All
I have been lurking in the background but following all with the greatest
of intereset.
Here in the Marshall Islands one of my longest desires is a better copra
drier fueled by biomass
and producing biochar as a by-product. This would also put all action at
a local producer level
as copra making is at the house hold level spread over hundred of islets
on 30 some atolls spread
100's of thousands of square miles. If the retort is fueled by coconut
shell the obvious resale of shell charcoal
is a given. However the use of other material particularly fronds and
husk would be a real plus.
Considering a small burner of to the side for cooking would possible.
Since much copra drying is
a nigthtime activity does anyone know if producer gas has even been tried
in a gas mantle lamp?.
Atoll soil is poor nutrient wise and biochar might have good effect from
what small efforts I have done
in the past.
The truly intriguing thing is all the little glimmers that keep showing
up that indicate whole new sustainable
"Jeffersonian" models that could be built. What is scary at the same time
is the philosophy of "newer bigger better." which
seems to be diametrically opposed to terra pretta biochar and biomass
fuel type system. There are a lot of corporations world
wide with vested interests which may not be supportive at all.
We won't be here by Hawking's warning migh have merit
"Stephen Hawking, one of the world's greatest physicists and
cosmologists, is once again warning his fellow humans that our extinction
is on the horizon unless we figure out a way to live in space. Not known
for conspiracy theories, Hawking's rationale is that the Earth is far too
delicate a planet to continue to withstand the barrage of human
battering. 'We must continue to go into space for humanity,' Hawking said
today, according to the Los Angeles Times. 'We won't survive another
1,000 years without escaping our fragile planet.'"
SO GAS IS GOOD
----- Original Message ----- From: "Paul Anderson" <[email protected]>
To: "Discussion of biomass cooking stoves"
<[email protected]>
Sent: Monday, April 15, 2013 2:03 PM
Subject: [Stoves] Applications of TLUD heat - not for cooking
Dear Paul O.
Your example of use of TLUD heat is of great interest. Could you
please expand on it as a small Word document or PowerPoint, with some
photos? A functioning example is worth 10 in the discussion process.
Thanks,
Paul A.
Paul S. Anderson, PhD aka "Dr TLUD"
Email: [email protected] Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
Note that it is not necessary to pelletize rice hulls or coffee husks.
They gasify quite well in their undensified state. But pelletizing
makes transport so much easier, and pelletizing becomes essential when
long, uninterrupted batch cycles are needed. In one commercial setting
in Saigon, ten of my small gasifiers were set up in a single paint
drying facility. The reactors are loaded with rice hull pellets, and
the batch cycle in this case lasts for more than five hours. The
factory is now in a position to sell rice hull biochar to local farmers
at a higher price than the pellets from which the biochar was derived.
No more bottled gas is used in this facility. The owner of this factory
just bought a small pellet machine and will start making his own rice
hull pellets. He will soon become an important producer of rice hull
biochar, and the gas he needs to fuel his paint-drying facility is for
free.
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