Clean Cooking Catalog

Test result

Stove and fuel

Stove description

Traditional Malawian mud stove

Stove characteristics

Household, Built in place, Side-feed, U-shape

Fuel type

Wood

Fuel moisture content

12.1%

Fuel net calorific value

not available

Test information

Test details

Emissions testing in households in the Chikhwawa District and the Balaka District.

Testing organization

North Carolina State University, Grieshop Atmosphere and Environment Lab

Reporting type

Third party

Country

Malawi

Year performed

2015

Test environment

Field

Altitude

not available

Number of replicate tests

13

Source information

Citation

Wathore, et al., In-Use Emissions and Estimated Impacts of Traditional, Natural- and Forced-Draft Cookstoves in Rural Malawi, Environmental Science and Technology, 2017.

Source data

not available

Test result IWA tiers of performance

Show subtiers

unrated

Emissions

High power CO

—

Low power CO

—

High power PM 2.5

—

Low power PM 2.5

—

unrated

Efficiency

High power thermal efficiency

—

Low power specific consumption

—

unrated

Indoor emissions

High power indoor CO

—

Low power indoor CO

—

High power indoor PM 2.5

—

Low power indoor PM 2.5

—

unrated

Safety

No subtiers

Performance metrics

Efficiency, energy consumption and fuel use

Metric	Value	SD (σ)	C_v
Fuel consumed	1400.0 g/task	1500.0	1.07

Emissions

Metric	Value	SD (σ)	C_v
PM2.5 emissions factor (2)	7.8 g/kg fuel	2.9	0.37
CO emissions factor (2)	98.0 g/kg fuel	25.2	0.26
CO2 emissions factor (2)	1679.3 g/kg fuel	39.6	0.02
EC emissions factor (2)	1.0 g/kg fuel	0.8	0.8
OC emissions factor (2)	3.2 g/kg fuel	1.7	0.53
EC/TC	0.3	0.2	0.67
PM2.5 emissions rate	151.2 mg/min	71.5	0.47
CO emissions rate	1.93 g/min	0.75	0.39
CO2 emissions rate	35.44 g/min	16.27	0.46
EC emissions rate	21.8 mg/min	17.3	0.79
OC emissions rate	57.2 mg/min	32.9	0.58