Heat Exchange

A Continuous–Flow Steam Generator for a Cookstove (3.6 MB pdf)
Dale Andreatta, July 2007

Andreattasteam

Vitagoat Steam Boiler
Malnutrition Matters, Ottawa, Canada

Steam boiler: Operates on wood or other solid fuels or liquid gas. Steam-injected pressure -cooking can be 10 times more fuel efficient than traditional open fire cooking and more efficient than improved stove-design cooking. Water is heated in an inner chamber and the resulting steam is re-heated in a tube, creating a “superheated steam” that is much hotter than regular steam. The steam is then fed into the cooker. The boiler is inexpensive to build, safe, and can be taken apart for cleaning, which is critical since most boilers accumulate scale on their inner shells and eventually fail.

Report on Improved Dung Burning Stove in Tibet
Mike Hatfield, Aprovecho Research Center and GTZ, July 16-August 4, 2006

Tibet Traditional Stove

Boiler Stove Idea
Frans Peeters, July 25, 2006

Richard Hill Stick Wood Furnace (pdf) and Emissions Tests (pdf) (1979-1980), Richard Hill, January 2005

Tribal Waste Energy Recovery Plant "TWERP" gasifying water heater, Charles MacArthur, inventor, Tralchemy July 2005

Institutional Stoves in Southern Africa: Malawi Report 2005, Peter Scott, Aprovecho for GTZ/Probec North, October 2005. Includes many rocket plans and guides such as: 200L Brick Stove Plans, Design Guides, Quality Control Guide (xls), Institutional User Guide.

Designing Improved Wood Burning Heating Stoves (2 MB) Dean Still, Aprovecho, October 2005

Heat Flux Report January 2006, Dale Andreatta, January 2006