Stove Performance Report: Mayon Rice Hull Stove

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:

The chart below includes the average results of two full emissions tests and one simmer retest of the smaller red model of the Mayon Rice Hull stove:

Results At A Glance          

Mayon Rice Hull              
Average of Two Full Water Boiling Tests: 2/15/05, 4/15/05, 

Simmer and Boil Retest 4/26/05, 5/31/05

Time To Boil 5 Liter of Water   25.1    minutes  
Approximate Thermal Efficiency  26%      

Firepower:                   
Boiling Firepower       2,879   Watts    
Simmering Firepower     3,065   Watts    
Turn Down Ratio     1        

Fuel:                    
Fuel to Boil 1 Liter of Water   85.2    g/Liter  
Fuel To Simmer 1L for 45 min.   159.7   g/Liter  
Fuel To Cook 1L         245.0   g/Liter  

Energy:                 
Energy to Boil 1 Liter of Water         1,128   kJ/Liter    
Energy to Simmer 1L for 45 min.         2,055   kJ/Liter    
Energy to Cook 1L           3,183   kJ/Liter    

Carbon Monoxide Emissions:           
CO to Boil 1 Liter of Water 3.0 g/Liter  
CO to Simmer 1 Liter for 45 min.    4.9 g/Liter  
CO to Cook 1 L      7.9 g/Liter  

*Particulate Matter Emissions:           
PM to Boil 1 Liter of Water 25.8    mg/Liter     
PM to Simmer 1 Liter for 45 min.    26.2    mg/Liter     
PM to Cook 1L       52.0    mg/Liter