New emission factors and efficiencies from in-field measurements of traditional and improved cookstoves and their potential implications

AMS Citation:
Coffey, E. R., and Coauthors, 2017: New emission factors and efficiencies from in-field measurements of traditional and improved cookstoves and their potential implications. Environmental Science & Technology, 51, 12508-12517, doi:10.1021/acs.est.7b02436.
Date:2017-11-07
Resource Type:article
Title:New emission factors and efficiencies from in-field measurements of traditional and improved cookstoves and their potential implications
Abstract: 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 (CO2), 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 EP 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.
Peer Review:Refereed
Copyright Information:Copyright 2017 American Chemical Society.
OpenSky citable URL: ark:/85065/d79w0j2d
Publisher's Version: 10.1021/acs.est.7b02436
Author(s):
  • Evan R. Coffey
  • Didier Muvandimwe
  • Yolanda Hagar
  • Christine Wiedinmyer - NCAR/UCAR
  • Ernest Kanyomse
  • Ricardo Piedrahita
  • Katherine L. Dickinson - NCAR/UCAR
  • Abraham Oduro
  • Michael P. Hannigan
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