Combustion

The C-H-O Fuel Map
Thomas Reed, Biomass Energy Foundation, October 4, 2007

Stove Performance Report: Mayon Rice Hull Stove
Aprovecho research Center, July 18, 2005

INTRODUCTION:

This report serves to provide detailed performance measures of the smaller red model of the Mayon Turbo Rice Hull cooking stove including speed, fuel use, efficiency, and emissions produced. Stove performance is also considered in comparison to a laboratory open fire and the average of four similar wood burning stoves recently tested at the Aprovecho laboratory. Comments are included describing ease of use and recommendations for possible design improvement.

The Mayon Turbo stove reduces both Carbon Monoxide and Particulate Matter when compared to a carefully operated open fire. It is especially successful at reducing Particulate Matter.

RESULTS AT A GLANCE:

Burning of wood

Rocket Stove Questions and Answers: Rocket Stove Air Supply - Primary and Secondary Air
Hugh Burnham-Slipper (UK) and Kevin Chisholm (CAN), Dean Still (Aprovecho), AD Karve (ARTI, India) November 25-26, 2006

Rocket Design (Aprovecho)

Select to Enlarge

Q.
Dear Stovers,
The fuel magazine that sticks out the side of a rocket stove is divided into two: above the shelf is where the fuel goes, and air passes under the shelf. Am I right in thinking that the fuel should be packed in as much as possible, to try and minimise the amount of air entering the stove through the fuel inlet? If so, why? My experience is that char builds up at the bottom of the elbow, so air is needed to burn the char (which in turn pyrolises the fuel), and a second air supply is required to burn the volatile gases. Any pointers would be warmly received.
Confused, Hugh.

The Fuel Composition-Conversion Diagram (pdf)
The Equivalence Ratio: The Key to Understanding Pyrolysis, Combustion and Gasification of fuels (pdf)