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Carbon Ecologico
http://www.carbonecologico.com/productos.html

BIOMASAS COMBUSTIBLES DEL PERU S.A.C.

POR QUE CARBON ECOLOGICO ?

PORQUE SON FABRICADOS A PARTIR DE BIOMASAS SOLIDAS.

QUE LO DIFERENCIA DEL CARBON VEGETAL:

Dr TLUD (Paul S. Anderson) would like to share recent documents about rice husk gasifier technology and its application from Alexis T. Belonio (Professor and Engineer) of the Center for Rice Husk Energy Technology (CRHET).

The first four documents describe stove developments through CRHET’s collaboration with fabrication shops. These stoves provide rural households and small cottage industries new options for clean cooking using agricultural wastes, like rice husks, as fuel.

  1. Batch Type Rice Husk Gasifier Stove, Model RHGS-12D
    (Document URL: http://drtlud.com/wp-content/uploads/2011/12/rhgs1.pdf )
  2. Continuous Type Rice Husk Gasifier Stoves, Models 10D, 12D, and 14D
    (Document URL: http://drtlud.com/wp-content/uploads/2011/12/rhgs2.pdf )
  3. Firefly (BMG-1040SS), Quickfire (BMG-1050SS), and Wildfire (BMG-1060SS) Biomass Gasifier Stoves
    (Document URL: http://drtlud.com/wp-content/uploads/2011/12/rhgs3.pdf )
  4. A Two-Burner, Continuous-Type Rice Husk Gas Stove (CFRHGS Model 16D-2B)
    (Document URL: http://drtlud.com/wp-content/uploads/2011/12/rhgs4.pdf )
  5. Small-Scale Rice Husk Gasifier Plant for Community Street Lighting
    (Document URL: http://drtlud.com/wp-content/uploads/2011/12/rhgs5.pdf )

The fifth document describes a rice husk gasifier plant which produces enough electricity for community street lighting. This plant was developed by Suki Trading Corporation in Lapu-Lapu City, Cebu, Philippines in collaboration with Kanvar Enterprises and the Center for Rice Husk Energy Technology (CRHET).

OPB did a nice story on stove designers that call the Pacific Northwest (of the US) home.

http://news.opb.org/article/burgeoning_cluster_of_lifesaving_stove_designers_call_nw_home/

TChar Technology for Cookstoves: Part B: Construction has been released. It is available for download at:
http://drtlud.com/
The TChar is a TLUD which lifts off at the end of the gasifier phase to drop char into either a charcoal stove bottom for continued use as cooking charcoal or a quench base for later use as charcoal or biochar.

Dr. N. Sai Bhaskar Reddy, CEO, GEO December, 2011
http://e-geo.org

See the attached pdf (about 150kb): Understanding Stoves
it is an excellent brief summary that highlights the important aspects of stoves design and testing. e.g. fuels, fuel preparation, stove design, materials, use and testing.

the Partnership for Clean Indoor Air (PCIA) December, 2011

PCIA Bulletin Issue 29
http://www.pciaonline.org/bulletin/pcia-bulletin-issue-29

This Bulletin focuses fuels for clean burning stoves. As they note, a lot of effort has been focused on wood burning stoves, but in urban areas, stick wood is hard to come by, and charcoal is a much more popular fuel. There's a good reason for this, studies have shown that charcoal stoves have up to 90% less indoor air pollution than similar wood stoves. In urban areas, there is a noticeable improvement in indoor air quality simply by shifting to charcoal burning. Additionally, biomass fuel briquettes, pellets, and other densified paper burning stoves are showing a lot of promise in urban areas so this bulletin profiles projects that use urban waste to create fuel briquettes that can be sold to stove owners.

http://www.pciaonline.org/bulletin/pcia-bulletin-issue-29

From GEO BIOCHAR STOVE
From GEO BIOCHAR STOVE

* About 30% biochar production
* 3 to 4 days for a batch of charcoal production
* Continuous hot water access (pot 1)
* Highly suitable for institutional cooking and as well making biochar
* Additional heat generated by flaring the pyrolysis gases, used for cooking
* Mitigation of the emissions during the pyrolysis by flaring
* Costs about Rs. 3000 for a 2’ width x 5’ depth x 6’ hight (in feet) “GEO Biochar pit stove”. (cost including, tin sheet for cover, digging the pit, three pot stove and chimney.)

*_"GEO BIOCHAR STOVE" is designed by Dr. N. Sai Bhaskar Reddy, CEO, GEO. Demonstrated to farmers under the project Good Stoves and Biochar Communities Project, being supported by GoodPlanet.org, France

I've attached a diagram of how I'm now planning to build the grate and throat area. (I took the liberty of modifying the GIZ diagram Crispin kindly sent to explain an appropriate layout)

As I'm only going to be burning wood and in my experience of wood stoves all the wood burns to a light ash which would easily fall through the grate I am planning to have a stationary grate. Am I making the wrong decision here?

--- next email --
Getting close to completing this stove now.

Some photos are attached.

I've also attached a drawing of how things stand now (not to scale)

The door and hatch are made and have fire rope seals. These will be fitted once everything else is together.

I've used a cast iron grate from an old coal stove that was the perfect size.

A couple of things I'm wondering

*At the moment all the secondary air is going in through some square section pipe with an internal diameter of 20x20mm that enters at the rear of the combustion chamber above the ceramic blocks. (shown as blue square in stove2-7.jpg). Is this going to supply enough air or should I put a similar sized secondary air inlet on the front of the stove also?

*Crispins GIZ design has an area where the combustion chamber tapers wider (an expansion chamber?). I've drawn this in green in stove2-7.jpg . How important is this? I could make these sloping walls from sheet steel or I guess buy some refractory material sheets (my x partner who is making this with me had some jewellers heat mats that would appear suitable although she appeared reluctant to give them up) Is this a crucial detail? What effect does it have on combustion? what would happen if I leave them out?

Thanks in advance for any pointers. Hopefully I should finish and test fire it in the coming week.

Dear Friends

Further to Darren’s efforts, a reminder that the original drawings for the combustor and one of the stoves that incorporates it is in the Library at New Dawn Engineering at the very much enlarged (this week) website. That is not to say there is so much there, just that we can now make very large files such as high-res video originals available. As time passes more will be available.

Gustavo Peña, November 2011

Tom varios amigos me han escrito que no reciben el documento aqui te lo mando, si lo van a poner en la web por favor agregar los siguientes comentarios

  1. Està fabricada con làmina de 3 milìmetros en la parte exterior y la càmara interna es de tubo acero al carbòn de 5 milìmetros
  2. tengo varios modelos en pruebas con gente que la usa todos los dias y los resultados hasta el momento son los siguientes
  3. A- en nuetro medio un negocio comun es la venta de tortillas, una de las usuarias ha logrado producir 800 tortillas con 10 libras de leña.
  4. B- la primera estufa con 2 quemadores tiene ya 8 meses de prueba y las condiciones de la càmara son exelentes no se ve deterioro alguno, esto nos da un parametro de vida de mas o menos 4 años de uso diario.
  5. C-los usuarios que estan haciendo las pruebas estan muy contentos por el desempeño y el ahorro, pues antes gastaban $7.50 usd en gas licuado (LPG) y con este modelo ahorran $5.00 por dia con un ahorro total de $1,800.00 usd por año
  6. D- los resultados finales con relacion al peso de la leña en comparacion de estufa tradicional estaran listos en 2 semanas.

Aqui van las fotos y los dibujos de la càmara, en el power point puedes ver los modelos que estoy produciendo, la Ecocina es la lider en ventas, al final del power point veras una estuva de metal con protector amarillo para evitar quemaduras la he nombrado HOPE y espero presentarla a una universidad de Africa en unas semanas.
la estufa HOPE esta equipada con la nueva càmara de combustion
cualquier pregunto por favor estoy a la orden

The Low Smoke Chulha has been enabled by Philips Design in close co-operation with NGOs, self-help groups, local entrepreneurs and potential users. Low Smoke Chulha provides a safer home environment for families, reduces the risk of respiratory illness, and supports indigenous ways of cooking. The Low Smoke Chulha is not only smokeless but also helps every household save 10 kilos of firewood each house each day which is 4 tones of firewood a year!

See our page: http://www.lowsmokechulha.com/

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