2 research outputs found
New Emission Factors and Efficiencies from in-Field Measurements of Traditional and Improved Cookstoves and Their Potential Implications
Household
cooking using solid biomass fuels is a major global health
and environmental concern. As part of the Research on Emissions Air
quality Climate and Cooking Technologies in Northern Ghana study,
we conducted 75 in-field uncontrolled cooking tests designed to assess
emissions and efficiency of the Gyapa woodstove, Philips HD4012, threestone
fire and coalpot (local charcoal stove). Emission factors (EFs) were
calculated for carbon monoxide (CO), carbon dioxide (CO<sub>2</sub>), and particulate matter (PM). Moreover, modified combustion (MCE),
heat transfer (HTE) and overall thermal efficiencies (OTE) were calculated
across a variety of fuel, stove and meal type combinations. Mixed
effect models suggest that compared to traditional stove/fuel combinations,
the Philips burning wood or charcoal showed significant fuel and energy
based EF differences for CO, but no significant PM changes with wood
fuel. MCEs were significantly higher for Philips wood and charcoal-burning
stoves compared to the threestone fire and coalpot. The Gyapa emitted
significantly higher ratios of elemental to organic carbon. Fuel moisture,
firepower and MCE fluctuation effects on stove performance were investigated
with mixed findings. Results show agreement with other in-field findings
and discrepancies with some lab-based findings, with important implications
for estimated health and air quality impacts