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
Red Oak (Quercus rubra), wet
Fuel moisture content
0.2023%
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
unrated
Emissions
unrated
Efficiency
unrated
Indoor emissions
unrated
Safety
Performance metrics
IWA emissions  
Metric Value SD (σ) Cv
IWA high power CO 8.215 g/MJ-del 1.25 0.15
IWA high power PM 611.0 mg/MJ-del 160.0 0.26
IWA low power CO 0.096 g/min/L
IWA low power PM 5.9 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 37.4% 2.0 0.05
IWA low power specific consumption 0.028 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 0.511 g/min
IWA PM 34.75 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Fuel consumed 121.0 g/task
Hot start thermal efficiency 39.2% 1.3 0.03
Cold start thermal efficiency 35.5% 2.7 0.08
Output
Metric Value SD (σ) Cv
Cold start firepower 2667.0 W 486.0 0.18
Hot start firepower 3216.0 W 112.0 0.03
Simmer firepower 1930.0 W 46.0 0.02
Mean time to boil 35.1 min 2.05 0.06
Emissions
Metric Value SD (σ) Cv
CH4 emissions factor (2) 1.87075 g/kg fuel
CO emissions factor (2) 63.875 g/kg fuel
PM2.5 emissions factor (2) 4.25 g/kg fuel
CO emissions rate 0.511 g/min
PM2.5 emissions rate 35.00824315 mg/min