Oblak

From Rok Oblak, How to Make the Holey Roket Stove

YouTube Video showing cooking with the Holey Roket Stove

Making the Holey Roket Stove (youtube Video)

Instructions and some beautiful examples of the Roket stove can be found on Rok Oblak's Web site: http://holeyroket.wordpress.com/

Holey Roket: A Biomass Briquette Stove
Rok Oblak, Slovenia, June 2009

See Rok Stoves
and Fuel Briquette Burning at Stoves Camp 2008

The Holey Roket technology promotes using biomass briquettes and their hole as the key feature of an efficient cooking system. The flames coming in the combustion chamber are condensed within a small space (scheme) providing higher heat output and therefore better combustion of toxic gasses like Carbon Monoxide (CO).

Fuel Briquette Burning at Stoves Camp 2008
Rok Oblak, August 31, 2008
Briquette Burning StoveBriquette Burning Stove


Stove DiagramStove Diagram

This prototype was to check the hole of the briquette and how gasification can do a nice job. As said, starting the fire with few small sticks and then after preheating the chamber, briquettes ignite by themselves and burn throughly. You can help flames with having a stick in the hole while burning. I really liked how the briquette retained its shape after it burned out, so you could still push the next one it without preventing the draft..

But the briquette burned with the surface lit from the combustion chamber, as Larry predicted. You could literally walk away of the stove with the consistent flame going on all the time (I guess the briquettes were good quality :) The air inflow was only through the hole of the briquette.

Funny was, that even when one briquette burned out, the next one ignited and the airflow continued through the hole of the first briquette.

Mdula: A DIY Mud Cooking Stove
Rok Oblak, August 2008

MdulaMdula

Mdula or Modular Mbaula (stove) is a design project aiming to simplify the construction of an efficient household mud cooking stove for extreme rural areas. It is based on a Do-It-Yourself (DIY) construction techique using a simple wooden mold.

Rok Oblak has started a blog on the development of the Mdula at:
http://mdulastove.wordpress.com/

MALAWI: Mdula (Modular Mbaula) Mud Stove, Rok Oblak, Chembe, Malawi, October 2005


Mdula stove


Stove Mold

BIO19 Gold Medal Winner

BIO19 Biennial of Industrial Design Ljubljana, Slovenia

I want to inform you, that the WWF Finland and UIAH (University of arts and design Helsinki) project: Mdula - biomass briquette stove intervention in Malawi has won the Gold Medal Award on BIO19, represented by international jury of: Aldo Cibic (ITA), Robin Edman, ICSID (SWE), Czeslawa Frejlich (POL), Stephen Hitchins, BEDA (GB), Ruth Klotzel, ICOGRADA (BRA).

The project was set in Helsinki in January 2003 and realised in Malawi (Chembe Village) in January 2004 and finished in Ljubljana in September 2004. The concept is based on the local people material knowlege, upgraded with technological aspects and design skills of us, students, working together in the same environment to improve the situation in the LMNP (Lake Malawi National Park). It is a two-year multidisciplinary based international students effort, how to gain as much improvements possible with the least intervention done in the environment, social and cultural lifestyle of the local people.

The result is a concept of production of a no-cost biomass briquette stove Mdula (modular Mbaula), made with a simple wooden mold and clay as a construction material.

The final model is based on 8 study models, many field testings and interaction with the local people. It uses biomass briquettes combined with woodfuel to make the stove as effective as possible with the same manipulating procedure as burning and using three-stone cooking formation. The project has intention only to gain a long-term result.

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