Test result
Water boiling test (WBT)
Stove and fuel
Stove description
Mali Charcoal. A conical metal grate holds the charcoal and is surrounded by a sheet metal cylinder with pot supports. A door opens and closes to control air flow into the charcoal.
Stove characteristics
Traditional
Fuel type
Charcoal
Fuel moisture content
not available
Fuel net calorific value
not available
Test information
Test details
WBT-3.0, 5 Liters Boiled
Testing organization
Reporting type
Not available
Country
United States
Year performed
2010
Test environment
Lab
Altitude
not available
Number of replicate tests
3
Test result IWA tiers of performance
Show subtiers
unrated
Emissions
unrated
Efficiency
unrated
Indoor emissions
unrated
Safety
Performance metrics
IWA emissions  
Metric Value SD (σ) Cv
IWA high power CO 31.377 g/MJ-del
IWA high power PM 107.534 mg/MJ-del
IWA low power CO 0.213 g/min/L
IWA low power PM 0.168 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 17.5469766%
IWA low power specific consumption 0.052 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 1.45 g/min
IWA PM 15.88 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Specific energy consumption 19800.0 kJ/task
Fuel consumed 655.0 g/task
Hot start thermal efficiency 17.6%
Cold start thermal efficiency 17.5%
Output
Metric Value SD (σ) Cv
Cold start firepower 5859.0 W
Hot start firepower 5443.0 W
Simmer firepower 2586.0 W
Mean time to boil 38.6 min
Emissions
Metric Value SD (σ) Cv
CO emissions factor (2) 284.5276728 g/kg fuel
CO emissions rate 1.450275456 g/min