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These RocketStoves are intriguing. I've been reading this morning, and plagarizing too. I am fairly certain that the research group that created this book intended free dispersal. I hope so. See: http://www.aprovecho.org/This is the type of information which could make the world a better place for our children. All that is really needed are people to teach these sustainable living techniques, people to learn from this, and most importantly people to employ these techniques on a regular basis. Sounds a bit naive doesn't it?
One of the things that strikes me about reading this book is that it is made to help people in undeveloped countries. This doesn't mean we can't learn from these articles. We can and with the help of our very own societal-rebel Lee Einer, we can start learning now. I am proud to announce that we'll be hosting a Tin Can Rocket Stove and 16 Brick Rocket Stove workshop here at our shop on the 28th of this month. That's a Saturday. we'll get started around 10AM.
I've only been reading about the Tin Can Rocket Stove, I haven't had a chance to read about the 16 brick stove yet. If the latter is as interesting as the former we'll be having a whole bunch of fun here at the Tusas shop. Shoot me an email if you are interested in attending.
let me get on with the show . . .
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Here are a few excerpts, the book in its entirety is on my site and is very interesting download it here: capturing_heat The file is 1mb according to my downloader.
Low Mass Rocket Stove
The Winiarski Rocket Stove
(Estufa Rocky)
available at a fixed rate and can disappear
behind clouds. If you've got it, wood is a
powerful, convenient source of fuel.
One pound of dry wood releases about
8,600 btu's of energy when burned. Gasoline
is only about twice as concentrated. It took a
long time for the tree to grow. The daily
amount of sunlight was captured and
changed into chemical energy. In fact, trees
are very much like batteries, storing energy.
Wood is like a battery that has been storing
energy for decades. The energy is concen-
trated and ready for use at any rate, depend-
ing on need. Also, this "battery" does not lose
its charge while sitting, cannot spill acid on
your pants, and usually smells good!
By using wood efficiently, people can cook
food using branches and twigs instead of split
logs. Gathering fallen branches can bring
people firewood without killing the trees, if
the rate of use matches the resource. The
branches are already a handy size so people
can be spared the labor of splitting logs as
well. The trees continue to grow while people
cook with wood.
Burning wood or any biomass also has a
great advantage over burning petroleum
products. Trees absorb carbon dioxide while
growing and release the same amount when
burned. The tree reduces the amount of C02
in the atmosphere and then replaces it. Burn-
ing fossil fuels, made from plants millions of
years old, can only increase the amount of
atmospheric C02, since absorption done by
the plants happened so long ago. Burning
biomass does not increase the amount of C02
in the atmosphere in the same way that burn-
ing petroleum can.
The 54" in diameter conical concentrator
focuses about 10 square feet of sunlight at the
pot. Each square foot of earth receives be-
tween 200 to 300 btu's per hour on a sunny
day. So, the conical cooker delivers about two
to three thousand btu's per hour to the pot.
That's approximately equal to the amount of
energy that's held in a small bit of 2 by 4
lumber only four inches long! The wood is
very concentrated and we can burn it as
quickly as we want. Direct solar energy is
Dr. Larry Winiarski's low mass Rocket stove
has proven itself to be the most efficient
cooking stove that we have used so far. It is
far more efficient than high mass cooking
stoves like the Lorena. We use Rocket type
stoves now to cook, bake, heat water, warm
houses, etc.
The Rocket stoves are based on an ingen-
ious combination of principles:
The combustion chamber is insulated in
order to keep the fire hot (above 1,100 F.) to
burn the wood more completely, reducing
smoke which is uncombusted fuel.
The cooking stoves are low mass, robbing
less heat from the pot.
Download the PDF file from http://outfitnm.com
capturing_heat
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