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Effects of increased small-scale biomass pellet combustion on ambient air quality in residential areas: A parametric dispersion modeling study
Umeå University, Faculty of Science and Technology, Department of Chemistry. Energy Technology Center, Piteå, Sweden. (ETPC)
Umeå University, Faculty of Science and Technology, Department of Chemistry. (ETPC)
2003 (English)In: Biomass and Bioenergy, ISSN 0961-9534, Vol. 24, no 6, 465-474 p.Article in journal (Refereed) Published
Abstract [en]

Sweden's goals of contemporaneously reducing CO2 emissions and phasing out nuclear power will require a maximum utilization of biomass fuels. This would imply a significant shift from electricity and fuel oil to biomass generated heat, but must also be accomplished without a deterioration of the local air quality. The most suitable energy carrier seems to be pelletized biomass fuels with their associated low emissions and considerable residential conversion potential. Using an underlying statistical design, a parametric dispersion modeling study was performed to estimate and illustrate the combined effects of source-specific, meteorological and modeling variables on the ambient air quality in a typical residential area for different conversion scenarios. The work nicely illustrated the benefits of combining statistical designs with model calculations. It further showed that the concentration of combustion related ambient THC was strongly related to conditions affecting the source strength, but only weakly to the dispersion conditions and model variables. Time of year (summer or winter); specific emission performance; extent of conversion from electricity; conversion from wood log combustion; and specific efficiency of the pellet appliances showed significant effects in descending order. The effects of local settings and model variables were relatively small, making the results more generally applicable. To accomplish the desired conversion to renewable energy in an ecologically and sustainable way, the emissions would have to be reduced to a maximum advisable limit of (given as CH4). Further, the results showed the potential positive influence by conversion from wood log to low emission pellet combustion.

Place, publisher, year, edition, pages
Elsevier, 2003. Vol. 24, no 6, 465-474 p.
Keyword [en]
Residential biomass combustion, Fuel pellet, Dispersion modeling, Sensitivity analysis, THC, Air quality, Emission limits
National Category
Other Natural Sciences
URN: urn:nbn:se:umu:diva-51917DOI: 10.1016/S0961-9534(02)00146-0OAI: diva2:490163
Available from: 2012-02-04 Created: 2012-02-04 Last updated: 2013-06-10Bibliographically approved

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Boman, ChristofferNordin, Anders
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