Cookstove Emissions and Performance Evaluation Using a New ISO Protocol and Comparison of Results with Previous Test...

Area of Science:

• Environmental Science
• Energy Engineering
• Public Health

Background:

• Established in 2018, ISO 19867-1 provides harmonized laboratory test protocols for cookstove emissions, efficiency, safety, and durability.
• Standardized testing is crucial for data quality and comparability in cookstove research.

Purpose of the Study:

• To compare air pollutant emissions and efficiency data between the ISO 19867-1 protocol and the traditional Water Boiling Test (WBT).
• To evaluate the ISO protocol's performance against previous methods, including the Firepower Sweep Test (FST).

Main Methods:

• Six stove/fuel combinations (LPG, pellet, wood fan, wood rocket, three stone fire, charcoal) were tested.
• Emissions measured included CO2, CO, THCs, CH4, NOx, PM2.5, OC, EC, UFP, and PAHs.
• Data was analyzed using ISO 19867-3 Voluntary Performance Targets.

Main Results:

• The ISO protocol demonstrates improvements over older methods and generally aligns with WBT tier ratings for emissions and efficiency.
• Charcoal and LPG stoves received higher PM2.5 tier ratings under the ISO protocol compared to the WBT.
• The ISO protocol generally resulted in higher PM2.5 tier ratings compared to the FST.

Conclusions:

• The ISO 19867-1 protocol offers a more robust and comparable method for cookstove performance evaluation.
• While largely consistent with WBT, the ISO protocol provides a refined assessment, particularly for PM2.5 emissions from specific stove types.
• Further research comparing ISO with other protocols like FST highlights its utility in emissions characterization.