Improved Biomass Cooking Stoves

Andrew Ma, January 2010

My favorite method in is to use trailgear555's stick method:

Since my skewer sticks are rather thin and it is below freezing, I spread pieces from a crunched tea light candle at the bottom to ensure a single match lighting.
Skewers are bone dry so it works well by placing the sticks on the can first and just light the top of the pile.

Video from my experiment:

Otto Formo, January 2010

Clean burning PekoPe 2009

The Peko Pe is an easy to built, top lit, natural draft (no fan) gasifying stove that burns biomass completely (low to no ash or char). It is

• Efficient: easy to light, easy to handle, cooks quickly at high temperature.
• Complete combustion no smoke and no soot
• Flexible Covering all needs of energy for all types of household and institutional kitchen and other activities like take away food, bakery etc.
• Simple Not intimidating technology.

The Peko Pe

The Energy Unit, single also called Peko Pe is designed to cover the general basic need for energy, but can be manufactured both smaller and bigger.

The combustion chamber is the heart of the system, and from there the heat will be consentrated up under the pot. The Energy Unit can be used both for cooking and for heating. Single, as a cooking or heating stove, it will cover the basic needs of energy for smaller household. More units put together will cover the need of energy for bigger houshold, institutional kitchen and pots of any size.

Boiling water

Boiling test

The fuel
Any kind of dry combustible biomass can be used as fuel.

The fire has complete combustion; is High temperature. No smoke. No soot. Some tar under the pan. Sensitive to wind

The usage
It is New technology and requires some training, but it is Easy to use; Flexible; Fits all types of kitchen utensils; and transmits No heat to the sides.

For more information, take a look at the Peko Pe web site: http://www.pekope.net/stove.html
and also the Miomio site: http://www.miombo.no/

Cottage Grove company sends 'rocket stoves' to Haiti

By The Associated Press
January 24, 2010, 5:14PM

A CLEAN BURNING COOKSTOVE DEVELOPED IN VIETNAM
Alexis Belonio, Tran Binh, Doan Thi Minh Nguyet, and Bui Dinh Hai
VINASILIC SJ, Socialist Republic of Vietnam and Center for Rice Husk Energy,
Philippines January 24, 2010

Paal Wendelobo, January 2010

What I feel is strongly needed by NGO's and others dealing with Household Energy for Developing Countries; is a list of about top10 actual fuels to be used and top 10 actual types of stoves to be used.

Wood

• Solid wood

SODIS
Michael travor, Majuro, Marshall Islands, January 19, 2010

Noting World Stoves efforts there is another critical issue for Haiti. WATER. In line with this I would like to point out SODIS which people can google for more information. Essentially it is is simply a clear plastic bottle partially filled with water, shaken and placed in direct sunlight. Oxygen, UV light and elevated temperature yield safe drinking water. Anyone is a position to do so
should see about passing on the information where it would do the most good.

Michael N Trevor
Majuro
Marshall Islands

Safe Drinking Water

http://www.sodis.ch/methode/anwendung/index_EN

Other Water Links

Improved Mirak Charcoal Stove, Haiti
Rogerio Miranda, World Bank January 18, 2010

Here some pictures of traditional charcoal stove in Haiti and the improved Mirak version with the bottom part enclosed

TRADITIONAL

IMPROVED

Richard's Charcoal Supplemented Briquettes
Edit Blue cells only C C Pemberton-Pigott Jan 2010

Briquettes
Outside Diameter 100 mm
Height 70 mm
Central hole diameter 35 mm
Volume 0.48 litres

Density of the briquette 0.40 kg/litre
Mass, Dry 0.19 kg

Contents, density assumed to be equal Portion Energy
Leaf/Straw 75% 17.00 MJ/kg

Nathaniel Mulcahy, January 2010

Attached are the photos of Mr. Ronald Watts' version of our EverythingNice Stove. A version of which we are now rushing for the Haitian relief efforts to provide clean water. More later

yours, Nat

--
Dear Nathaniel

Here a a few photos from the successful construction and operation of the stove. Because I had no suitable vessels, I built them from sheet steel. It operates quite well, and is a good prototype for a larger model

Many thanks
Ronald Watts

The 2010 ETHOS Conference is being held in Kirkland, Washington, on January 29th ~ 31st, 2010.

The 2010 ETHOS Conference aims to expand its reach from previous annual meetings, encouraging participation of Southern partners, international stoves experts, and development specialists with field experience in the transfer of cooking technologies.

2010 ETHOS Conference & Registration on their website