Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study
Abstract
Billions of households worldwide cook using biomass fires and suffer from the toxic smoke emitted into their homes. Laboratory studies of wood-burning cookstoves demonstrate that secondary air injection can greatly reduce the emission of harmful air pollution, but these experimental advancements are not easily translated into practical cookstove designs that can be widely adopted. In this study, we use a modular cookstove platform to experimentally quantify the practical secondary air injection design requirements (e.g., flow rate, pressure, and temperature) to reduce mass emissions of particulate matter (PM), carbon monoxide (CO), and black carbon (BC) by at least 90% relative to a traditional cooking fire. Over the course of 111 experimental trials, we illuminate the physical mechanisms that drive emission reductions, and outline fundamental design principles to optimize cookstove performance. Using the experimental data, we demonstrate that low-cost (<$10) fans and blowers are available to drive the secondary flow, and can be independently powered using an inexpensive thermoelectric generator mounted nearby. Furthermore, size-resolved PM measurements show that secondary air injection inhibits particle growth, but the total number of particles generated remains relatively unaffected. We discuss the potential impacts for human health and investigate methods to mitigate the PM formation mechanisms thatmore »
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF)
- OSTI Identifier:
- 1772131
- Alternate Identifier(s):
- OSTI ID: 1604724
- Grant/Contract Number:
- AC02-05CH11231; 1106400
- Resource Type:
- Published Article
- Journal Name:
- Development Engineering
- Additional Journal Information:
- Journal Name: Development Engineering Journal Volume: 5 Journal Issue: C; Journal ID: ISSN 2352-7285
- Publisher:
- Elsevier
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 42 ENGINEERING; biomass cookstove; household energy; air pollution; design; combustion
Citation Formats
Caubel, Julien J., Rapp, Vi H., Chen, Sharon S., and Gadgil, Ashok J. Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study. United Kingdom: N. p., 2020.
Web. doi:10.1016/j.deveng.2020.100049.
Caubel, Julien J., Rapp, Vi H., Chen, Sharon S., & Gadgil, Ashok J. Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study. United Kingdom. https://doi.org/10.1016/j.deveng.2020.100049
Caubel, Julien J., Rapp, Vi H., Chen, Sharon S., and Gadgil, Ashok J. Wed .
"Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study". United Kingdom. https://doi.org/10.1016/j.deveng.2020.100049.
@article{osti_1772131,
title = {Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study},
author = {Caubel, Julien J. and Rapp, Vi H. and Chen, Sharon S. and Gadgil, Ashok J.},
abstractNote = {Billions of households worldwide cook using biomass fires and suffer from the toxic smoke emitted into their homes. Laboratory studies of wood-burning cookstoves demonstrate that secondary air injection can greatly reduce the emission of harmful air pollution, but these experimental advancements are not easily translated into practical cookstove designs that can be widely adopted. In this study, we use a modular cookstove platform to experimentally quantify the practical secondary air injection design requirements (e.g., flow rate, pressure, and temperature) to reduce mass emissions of particulate matter (PM), carbon monoxide (CO), and black carbon (BC) by at least 90% relative to a traditional cooking fire. Over the course of 111 experimental trials, we illuminate the physical mechanisms that drive emission reductions, and outline fundamental design principles to optimize cookstove performance. Using the experimental data, we demonstrate that low-cost (<$10) fans and blowers are available to drive the secondary flow, and can be independently powered using an inexpensive thermoelectric generator mounted nearby. Furthermore, size-resolved PM measurements show that secondary air injection inhibits particle growth, but the total number of particles generated remains relatively unaffected. We discuss the potential impacts for human health and investigate methods to mitigate the PM formation mechanisms that persist.},
doi = {10.1016/j.deveng.2020.100049},
journal = {Development Engineering},
number = C,
volume = 5,
place = {United Kingdom},
year = {Wed Jan 01 00:00:00 EST 2020},
month = {Wed Jan 01 00:00:00 EST 2020}
}
https://doi.org/10.1016/j.deveng.2020.100049
Works referenced in this record:
Beyond PM2.5: The role of ultrafine particles on adverse health effects of air pollution
journal, December 2016
- Chen, Rui; Hu, Bin; Liu, Ying
- Biochimica et Biophysica Acta (BBA) - General Subjects, Vol. 1860, Issue 12
Development of stove-powered thermoelectric generators: A review
journal, March 2016
- Gao, H. B.; Huang, G. H.; Li, H. J.
- Applied Thermal Engineering, Vol. 96
Thermoelectric power generation from biomass cook stoves
journal, February 2010
- Champier, D.; Bedecarrats, J. P.; Rivaletto, M.
- Energy, Vol. 35, Issue 2
Combustion and Co-combustion of Biomass: Fundamentals, Technologies, and Primary Measures for Emission Reduction †
journal, November 2003
- Nussbaumer, Thomas
- Energy & Fuels, Vol. 17, Issue 6
Monitoring and evaluation of improved biomass cookstove programs for indoor air quality and stove performance: conclusions from the Household Energy and Health Project
journal, June 2007
- Smith, Kirk R.; Dutta, Karabi; Chengappa, Chaya
- Energy for Sustainable Development, Vol. 11, Issue 2
Effect of air staging on fine particle, dust and gaseous emissions from masonry heaters
journal, August 2014
- Nuutinen, K.; Jokiniemi, J.; Sippula, O.
- Biomass and Bioenergy, Vol. 67
Global, regional, and national comparative risk assessment of 84 behavioural, environmental and occupational, and metabolic risks or clusters of risks for 195 countries and territories, 1990–2017: a systematic analysis for the Global Burden of Disease Study 2017
journal, November 2018
- Stanaway, Jeffrey D.; Afshin, Ashkan; Gakidou, Emmanuela
- The Lancet, Vol. 392, Issue 10159
The Design, Development and Performance Evaluation of Thermoelectric Generator(TEG) Integrated Forced Draft Biomass Cookstove
journal, January 2015
- Mal, Risha; Prasad, Rajendra; Vijay, Virendra K.
- Procedia Computer Science, Vol. 52
Potential health impact of ultrafine particles under clean and polluted urban atmospheric conditions: a model-based study
journal, August 2009
- Martins, Leila Droprinchinski; Martins, Jorge A.; Freitas, Edmilson D.
- Air Quality, Atmosphere & Health, Vol. 3, Issue 1
Design Changes in a Fixed-Bed Pellet Combustion Device: Effects of Temperature and Residence Time on Emission Performance
journal, February 2010
- Pettersson, Esbjörn; Lindmark, Fredrik; Öhman, Marcus
- Energy & Fuels, Vol. 24, Issue 2
Determining Particulate Matter and Black Carbon Exfiltration Estimates for Traditional Cookstove Use in Rural Nepalese Village Households
journal, April 2015
- Soneja, Sutyajeet I.; Tielsch, James M.; Curriero, Frank C.
- Environmental Science & Technology, Vol. 49, Issue 9
Bounding the role of black carbon in the climate system: A scientific assessment: BLACK CARBON IN THE CLIMATE SYSTEM
journal, June 2013
- Bond, T. C.; Doherty, S. J.; Fahey, D. W.
- Journal of Geophysical Research: Atmospheres, Vol. 118, Issue 11
Particle emissions from pellets stoves and modern and old-type wood stoves
journal, August 2011
- Bäfver, Linda S.; Leckner, Bo; Tullin, Claes
- Biomass and Bioenergy, Vol. 35, Issue 8
The Effects of Air Flow Rates, Secondary Air Inlet Geometry, Fuel Type, and Operating Mode on the Performance of Gasifier Cookstoves
journal, August 2016
- Tryner, Jessica; Tillotson, James W.; Baumgardner, Marc E.
- Environmental Science & Technology, Vol. 50, Issue 17
Characterization of Ultrafine Particulate Matter from Traditional and Improved Biomass Cookstoves
journal, March 2013
- Just, Brian; Rogak, Steven; Kandlikar, Milind
- Environmental Science & Technology, Vol. 47, Issue 7
Black carbon cookstove emissions: A field assessment of 19 stove/fuel combinations
journal, November 2017
- Garland, Charity; Delapena, Samantha; Prasad, Rajendra
- Atmospheric Environment, Vol. 169
Emission characteristics of modern and old-type residential boilers fired with wood logs and wood pellets
journal, August 2004
- Johansson, Linda S.; Leckner, Bo; Gustavsson, Lennart
- Atmospheric Environment, Vol. 38, Issue 25
Reducing Ultrafine Particle Emissions Using Air Injection in Wood-Burning Cookstoves
journal, July 2016
- Rapp, Vi H.; Caubel, Julien J.; Wilson, Daniel L.
- Environmental Science & Technology, Vol. 50, Issue 15
Critical Parameters for Particle Emissions in Small-Scale Fixed-Bed Combustion of Wood Pellets
journal, July 2004
- Wiinikka, Henrik; Gebart, Rikard
- Energy & Fuels, Vol. 18, Issue 4
Solid Fuel Use for Household Cooking: Country and Regional Estimates for 1980–2010
journal, July 2013
- Bonjour, Sophie; Adair-Rohani, Heather; Wolf, Jennyfer
- Environmental Health Perspectives, Vol. 121, Issue 7
Biomass cookstoves: A review of technical aspects
journal, January 2015
- Sutar, Kailasnath B.; Kohli, Sangeeta; Ravi, M. R.
- Renewable and Sustainable Energy Reviews, Vol. 41
Fine particle and gaseous emissions from normal and smouldering wood combustion in a conventional masonry heater
journal, November 2008
- Tissari, J.; Lyyränen, J.; Hytönen, K.
- Atmospheric Environment, Vol. 42, Issue 34
Particle size distributions from laboratory-scale biomass fires using fast response instruments
journal, January 2010
- Hosseini, S.; Li, Q.; Cocker, D.
- Atmospheric Chemistry and Physics, Vol. 10, Issue 16
Airborne Particulate Matter and Human Health: Toxicological Assessment and Importance of Size and Composition of Particles for Oxidative Damage and Carcinogenic Mechanisms
journal, November 2008
- Valavanidis, Athanasios; Fiotakis, Konstantinos; Vlachogianni, Thomais
- Journal of Environmental Science and Health, Part C, Vol. 26, Issue 4
The Influence of air Distribution rate on Particle Emissions in Fixed bed Combustion of Biomass
journal, September 2005
- Wiinikka, Henrik; Gebart, Rikard
- Combustion Science and Technology, Vol. 177, Issue 9
Effects of exposure to ambient ultrafine particles on respiratory health and systemic inflammation in children
journal, May 2018
- Clifford, Sam; Mazaheri, Mandana; Salimi, Farhad
- Environment International, Vol. 114
Development and testing of a domestic woodstove thermoelectric generator with natural convection cooling
journal, June 2005
- Nuwayhid, Rida Y.; Shihadeh, Alan; Ghaddar, Nesreen
- Energy Conversion and Management, Vol. 46, Issue 9-10
The role of primary and secondary air on wood combustion in cookstoves
journal, March 2016
- Kirch, Thomas; Birzer, Cristian H.; Medwell, Paul R.
- International Journal of Sustainable Energy, Vol. 37, Issue 3
Time-resolved analysis of particle emissions from residential biomass combustion – Emissions of refractory black carbon, PAHs and organic tracers
journal, September 2017
- Nielsen, Ingeborg E.; Eriksson, Axel C.; Lindgren, Robert
- Atmospheric Environment, Vol. 165
Household cooking fuels and technologies in developing economies
journal, December 2011
- Foell, Wesley; Pachauri, Shonali; Spreng, Daniel
- Energy Policy, Vol. 39, Issue 12
Effects of Air Staging and Load on Fine-Particle and Gaseous Emissions from a Small-Scale Pellet Boiler
journal, November 2011
- Lamberg, Heikki; Sippula, Olli; Tissari, Jarkko
- Energy & Fuels, Vol. 25, Issue 11
Study of a TE (thermoelectric) generator incorporated in a multifunction wood stove
journal, March 2011
- Champier, D.; Bédécarrats, J. P.; Kousksou, T.
- Energy, Vol. 36, Issue 3
Distinct oxidative stabilities of char versus soot black carbon: Implications for quantification and environmental recalcitrance: OXIDATIVE STABILITIES OF SOOT AND CHAR
journal, May 2006
- Elmquist, Marie; Cornelissen, Gerard; Kukulska, Zofia
- Global Biogeochemical Cycles, Vol. 20, Issue 2
How many replicate tests are needed to test cookstove performance and emissions? — Three is not always adequate
journal, June 2014
- Wang, Yungang; Sohn, Michael D.; Wang, Yilun
- Energy for Sustainable Development, Vol. 20
Results of Laboratory Testing of 15 Cookstove Designs in Accordance with the ISO/IWA Tiers of Performance
journal, September 2014
- Still, Dean; Bentson, Samuel; Li, Haixi
- EcoHealth, Vol. 12, Issue 1
Pyrolysis and thermal-oxidation characterization of organic carbon and black carbon aerosols
journal, September 2011
- Jiang, MingYu; Wu, YiQing; Lin, GongShi
- Science of The Total Environment, Vol. 409, Issue 20
An overview of particulate emissions from residential biomass combustion
journal, January 2018
- Vicente, E. D.; Alves, C. A.
- Atmospheric Research, Vol. 199
Combustion of wood-chips in circulating fluidized bed boilers — NO and CO emissions as functions of temperature and air-staging
journal, July 1999
- Lyngfelt, A.; Leckner, B.
- Fuel, Vol. 78, Issue 9
Velocity Coefficients For Free Jets From Sharp-Edged Orifices
journal, March 1984
- Lienhard, J. H.; Lienhard, J. H.
- Journal of Fluids Engineering, Vol. 106, Issue 1
A Laboratory Comparison of Emission Factors, Number Size Distributions, and Morphology of Ultrafine Particles from 11 Different Household Cookstove-Fuel Systems
journal, May 2017
- Shen, Guofeng; Gaddam, Chethan K.; Ebersviller, Seth M.
- Environmental Science & Technology, Vol. 51, Issue 11
Pollutant Emissions and Energy Efficiency under Controlled Conditions for Household Biomass Cookstoves and Implications for Metrics Useful in Setting International Test Standards
journal, September 2012
- Jetter, James; Zhao, Yongxin; Smith, Kirk R.
- Environmental Science & Technology, Vol. 46, Issue 19
Staged combustion of rice straw in a fluidized bed
journal, October 2007
- Okasha, F.
- Experimental Thermal and Fluid Science, Vol. 32, Issue 1
The Firepower Sweep Test: A novel approach to cookstove laboratory testing
journal, September 2018
- Bilsback, Kelsey R.; Eilenberg, Sarah R.; Good, Nicholas
- Indoor Air, Vol. 28, Issue 6
Effect of Excess Air Ratio and Temperature on NOx Emission from Grate Combustion of Biomass in the Staged Air Combustion Scenario
journal, October 2011
- Houshfar, Ehsan; Skreiberg, Øyvind; Løvås, Terese
- Energy & Fuels, Vol. 25, Issue 10
Effect of wood combustion conditions on the morphology of freshly emitted fine particles
journal, April 2014
- Torvela, T.; Tissari, J.; Sippula, O.
- Atmospheric Environment, Vol. 87
Optimization of Secondary Air Injection in a Wood-Burning Cookstove: An Experimental Study
journal, February 2018
- Caubel, Julien J.; Rapp, Vi H.; Chen, Sharon S.
- Environmental Science & Technology, Vol. 52, Issue 7