July 2014

TLUD Bread Oven

23 July 2014 - 12:10pm

Marc AYATS PLANA

Estremera Nova, Bunyola, Illes Balears, Spain htttp://www.cuinessolars.jimdo.com

Marc Ayats Plana has been working on TLUD stoves and improved low thermal mass ovens. This TLUD powered low thermal mass oven was inspired by the Anderson's Recho Rocket Oven, and uses a Champion style TLUD heating stove to power the low thermal mass earth oven.

For Marc's excellent writ-up download the pdf TLUD-OVEN Description
These are some quick notes:

He has made some changes to the TLUD style oven

Increased primary air draft, which can apport enough oxigen to burn the charcoal generated during the gasification process and continue giving heat to the oven. Now the primary air enters around the lower perimeter of the reactor, instead of having a single inlet tube like in the original model.
Increased the length of the riser, which also sustains the diffuser. This extra extension allows the complete combustion of gases gasification to completely remove the visible smoke in the oven.

TLUD Reactor. Diameter: 20cm. Total length: 30cm. Fuel Height: 20cm
TLUD Outskirt. Diameter: 22cm. Diameter central hole: 10cm. Total length: 25cm
TLUD Riser and diffuser. Diameter: 12 cm. Total length: 30cm. Diffuser: granite piece 2cm thick and 15cm diameter
Fuel load: 3.38Kg pellets

The Low Thermal Mass oven is based on the Haiti Rocket oven http://www.rechoroket.com
To see more pictures of the TLUD oven and the process of construction go to:
http://cuinessolars.jimdo.com/forns/

In the Oven Temperature graph, you can see the complete temperature profile. Marc did a side by side comparison of both a 20cm reactor TLUD and a smaller TLUD, with 12,5cm reactor.
"Note: the temperatures refers to the inside side of the wall oven, half way between the baking surface and the top hole. Note2: the temperatures were taken by a temperature datalogger and a type K probe."

Marc's Notes and TLUD size comparison are copied here:
Notes about 20cm TLUD test

File attachments:

TLUD Oven Description and Notes

Gasifier (microgasification)

TLUD

Ceramic

Pellets

Bingka Oven

21 July 2014 - 10:41am

Rebecca Vermeer

Bingka Coconut Rice Cakes baked in the Bingka Oven

Attached is my BINGKA OVEN fired by an Eco-Kalan-C using charcoal (oling) made from coconut shells. I have used charcoal as fuel as it burns clean. I have used firewood also but the soot that is formed inside the oven tarnishes the looks of whatever is baked in it. In the Philippines, there are many men and women who use the traditional “hornohan” for their home-based businesses of making bingka (sweet rice cake with coconut), tortas (breads filled or plain) and cakes made of cassava, ube, wheat and sweet rice. In most cases, one does not earn enough to pay for the medical costs of treating illnesses such as cancer, eye and skin infections and lung diseases which result from long term exposure to smoke and intense heat. By reducing fuel consumption and exposure to radiant heat and by removing the smoke from the cooking environment and immediate neighbourhood, the BINGKA OVEN can bring better health and higher living standards to poor families in the Philippines.adidas Yeezy 350

Philippines

Bingka Oven

Improved Biomass Briquettes

18 July 2014 - 11:00am

Richard Stanley

The use of biomass fibers used as binders of a charcoal matrix --all done at ambient temperatures and at pressures generated by a simple hand press (12 to 15 bars) -and there are many such options– is certainly a viable alternative to boiling up starch or sugar on one end or purchasing the mechanized press and consuming the energy to generate the higher temperature/pressure for lignin melting. I will being the samples to the stoves camp to show what kind of densities can be achieved by infilling a properly processed fiber matrix with such as charcoal fines but I find it puzzling that this alternative now active in 67 nations globally, escapes mention.

Richard Stanley

Air Jordan 1 GS

File attachments:

07-18-14-richard-stanely-binders.pdf

briquettes

Maasai Improved Wood burning Stoves

17 July 2014 - 4:46pm

Bob Lang

I agree that burning wood and other fuels like that is not what the rural people of the world should be saddled with forever. They need the kind of cooking fuel I have.

But for now, we can really help them have healthier lives and less menial labor. There is no contradiction between helping out now with better wood stoves and knowing that their governments, central and local, must do more as quickly as possible to improve their access to good energy, water, housing and all the rest.

We are happy to bring our stove to the Maasai. We have 100% "sustained adoption" and the attached photo shows why. Yes, someday they will be much better off, we hope, and not need this sort of thing. But for now, to see Rhoda, cooking some beans with her grandchild on her lap, safe and smoke free, is a motivating image that makes us proud and happy.

Bob Lange
Maasai Stoves and Solar

http://www.forstoves.com/what-we-do/maasai-stove/
and http://internationalcollaborative.org/about-us/impact/
Page non trouvée , La SCELF, Société Civile des Editeurs de Langue Française.

Tanzania

Masaai Stoves

Wood

Potential Energy Stove adds Orange heat shield screen

17 July 2014 - 4:02pm

Potential Energy http://www.potentialenergy.org/ stoves are the stoves original designed in the Berkley labs for Sudan (the Darfur region). They are an energy efficient stove designed with the cook's needs in mind.

They have recently added an orange 'cool mesh' to the outside of their metal stove to help protect the stove user (and their children) from burns. The second photo is of a stove field test, where ladies in Africa can see for themselves the advantages and disadvantages of several designs.

The Berkley stove is created out of metal and then shipped to local artisans who assemble the stove in the field. This video shows part of the process.