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Title: Reducing ultrafine particle emissions using air injection in wood-burning cookstoves

In order to address the health risks and climate impacts associated with pollution from cooking on biomass fires, researchers have focused on designing new cookstoves that improve cooking performance and reduce harmful emissions, specifically particulate matter (PM). One method for improving cooking performance and reducing emissions is using air injection to increase turbulence of unburned gases in the combustion zone. Although air injection reduces total PM mass emissions, the effect on PM size-distribution and number concentration has not been thoroughly investigated. Using two new wood-burning cookstove designs from Lawrence Berkeley National Laboratory, this research explores the effect of air injection on cooking performance, PM and gaseous emissions, and PM size distribution and number concentration. Both cookstoves were created using the Berkeley-Darfur Stove as the base platform to isolate the effects of air injection. The thermal performance, gaseous emissions, PM mass emissions, and particle concentrations (ranging from 5 nm to 10 μm in diameter) of the cookstoves were measured during multiple high-power cooking tests. Finally, the results indicate that air injection improves cookstove performance and reduces total PM mass but increases total ultrafine (less than 100 nm in diameter) PM concentration over the course of high-power cooking.
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Publication Date:
Report Number(s):
LBNL-1006082
Journal ID: ISSN 0013-936X; ir:1006082
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 50; Journal Issue: 15; Journal ID: ISSN 0013-936X
Publisher:
American Chemical Society (ACS)
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1342536
Alternate Identifier(s):
OSTI ID: 1393068

Rapp, Vi H., Caubel, Julien J., Wilson, Daniel L., and Gadgil, Ashok J.. Reducing ultrafine particle emissions using air injection in wood-burning cookstoves. United States: N. p., Web. doi:10.1021/acs.est.6b01333.
Rapp, Vi H., Caubel, Julien J., Wilson, Daniel L., & Gadgil, Ashok J.. Reducing ultrafine particle emissions using air injection in wood-burning cookstoves. United States. doi:10.1021/acs.est.6b01333.
Rapp, Vi H., Caubel, Julien J., Wilson, Daniel L., and Gadgil, Ashok J.. 2016. "Reducing ultrafine particle emissions using air injection in wood-burning cookstoves". United States. doi:10.1021/acs.est.6b01333. https://www.osti.gov/servlets/purl/1342536.
@article{osti_1342536,
title = {Reducing ultrafine particle emissions using air injection in wood-burning cookstoves},
author = {Rapp, Vi H. and Caubel, Julien J. and Wilson, Daniel L. and Gadgil, Ashok J.},
abstractNote = {In order to address the health risks and climate impacts associated with pollution from cooking on biomass fires, researchers have focused on designing new cookstoves that improve cooking performance and reduce harmful emissions, specifically particulate matter (PM). One method for improving cooking performance and reducing emissions is using air injection to increase turbulence of unburned gases in the combustion zone. Although air injection reduces total PM mass emissions, the effect on PM size-distribution and number concentration has not been thoroughly investigated. Using two new wood-burning cookstove designs from Lawrence Berkeley National Laboratory, this research explores the effect of air injection on cooking performance, PM and gaseous emissions, and PM size distribution and number concentration. Both cookstoves were created using the Berkeley-Darfur Stove as the base platform to isolate the effects of air injection. The thermal performance, gaseous emissions, PM mass emissions, and particle concentrations (ranging from 5 nm to 10 μm in diameter) of the cookstoves were measured during multiple high-power cooking tests. Finally, the results indicate that air injection improves cookstove performance and reduces total PM mass but increases total ultrafine (less than 100 nm in diameter) PM concentration over the course of high-power cooking.},
doi = {10.1021/acs.est.6b01333},
journal = {Environmental Science and Technology},
number = 15,
volume = 50,
place = {United States},
year = {2016},
month = {6}
}