Test result: CookClean CookMate
Water boiling test (WBT)
Stove and fuel
Stove characteristics
Batch loaded, Household, Non-traditional, Portable, Pot skirt
Fuel type
Charcoal
Fuel description
Charcoal produced from cutting of Azadirachta indica (Neem tree, Indian Lilac).
Fuel moisture content
0.00802%
Fuel net calorific value
28.2 MJ/kg
Test information
Test details
These results are for the large-sized CookMate, following the WBT 4.1.2 protocol. Volume of pot used was 10.6 liters.
Reporting type
Third party
Country
Ghana
Year performed
2012
Test environment
Lab
Altitude
not available
Number of replicate tests
3
Source information
Citation
Obriri, HA., August 2012. Report on Testing of CookMate Charcoal Stoves. Council for Scientific and Industrial Research.
Source data
Test result IWA tiers of performance
Show subtiers
unrated
Emissions
unrated
Efficiency
unrated
Indoor emissions
unrated
Safety
Performance metrics
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Specific energy consumption 25946.0 kJ/task 9168.2 0.35
Fuel consumed 920.0 g/task 325.1 0.35
Hot start thermal efficiency 32.0% 7.0 0.22
Cold start thermal efficiency 33.0% 2.0 0.06
Simmer thermal efficiency 45.0% 5.0 0.11
Specific fuel consumption cold start 165.0 g/L 126.0 0.76
Specific fuel consumption hot start 56.1 g/L 2.7 0.05
Temp-corrected specific consumption cold start 175.3 g/L 132.3 0.75
Temp-corrected specific consumption hot start 59.2 g/L 2.1 0.04
Temp-corrected specific energy cons cold start 0.0 kJ/L 0.0 NaN
Temp-corrected specific energy cons hot start 0.0 kJ/L 0.0 NaN
Burning rate cold start 5.3 g/min 1.1 0.21
Burning rate hot start 5.1 g/min 0.5 0.1
Burning rate simmer 4.3 g/min 0.4 0.09
Specific fuel consumption simmer 65.7 g/L 6.5 0.1
Temp-corrected specific energy cons simmer 0.2 kJ/L 0.0 0.0
Output
Metric Value SD (σ) Cv
Cold start firepower 2479.0 W 498.6 0.2
Hot start firepower 2416.0 W 248.9 0.1
Simmer firepower 2117.0 W 161.9 0.08
Time to boil cold start 73.0 min 11.5 0.16
Time to boil hot start 49.0 min 6.0 0.12
Temp-corrected time to boil cold start 77.7 min 11.1 0.14
Temp-corrected time to boil hot start 51.8 min 6.7 0.13
Turn down ratio 1.19 0.3 0.25