Test result: Berkeley-Darfur Stove V.14
Water boiling test (WBT)
Stove and fuel
Stove characteristics
Pot skirt, Rocket, Non-traditional
Fuel type
Wood
Fuel description
Wood, dry
Fuel moisture content
not available
Fuel net calorific value
17.7 MJ/kg
Test information
Test details
WBT 4.1.2, 5 Liters of water
Testing organization
Reporting type
Third party
Country
United States
Year performed
2012
Test environment
Lab
Altitude
not available
Number of replicate tests
3
Test result IWA tiers of performance
Show subtiers
1
Emissions
2
Efficiency
1
Indoor emissions
unrated
Safety
Performance metrics
IWA emissions  
Metric Value SD (σ) Cv
IWA high power CO 5.175 g/MJ-del 0.45 0.09
IWA high power PM 276.5 mg/MJ-del 50.0 0.18
IWA low power CO 0.075 g/min/L
IWA low power PM 3.367 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 37.4% 2.9 0.08
IWA low power specific consumption 0.032 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 0.357 g/min
IWA PM 17.617 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Fuel consumed 124.0 g/task
Hot start thermal efficiency 38.6% 2.4 0.06
Cold start thermal efficiency 36.1% 3.4 0.09
Output
Metric Value SD (σ) Cv
Cold start firepower 2668.0 W 84.0 0.03
Hot start firepower 3165.0 W 399.0 0.13
Simmer firepower 2194.0 W 155.0 0.07
Mean time to boil 33.7 min 2.2 0.07
Emissions
Metric Value SD (σ) Cv
CH4 emissions factor (2) 0.96955 g/kg fuel
CO emissions factor (2) 42.545 g/kg fuel
PM2.5 emissions factor (2) 2.0725 g/kg fuel
CO emissions rate 0.357 g/min
PM2.5 emissions rate 17.90921753 mg/min