Biomass
; Combustion
; Flue gases
; Flues
; Fuels
; Nitrogen
; Particulate emissions
; Wood fuels
; Biomass heating systems
; Chemical constituents
; Flue gas temperatures
; Oxides of nitrogen
; Particulate fraction
; Particulates
; Willows
; Wood chip
; Gas emissions
; fuel
; nitrogen
; oxide
; phosphorus
; potassium
; airflow
; atmospheric pollution
; biomass
; combustion
; deciduous tree
; emission inventory
; fuelwood
; gas exchange
; nitrogen oxides
; particle size
; particulate matter
; phosphorus
; power generation
; standard (regulation)
; temperature
; Article
; biomass
; carbon footprint
; combustion
; energy yield
; flue gas
; particle size
; particulate matter
; priority journal
; sitka spruce
; United Kingdom
; wood
; wood chip
; United Kingdom
; Picea sitchensis
; Salix
Scopus学科分类:
Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要:
Woodchip is widely used as fuel in dedicated biomass and, even in some conventional energy generation plants. However, there are concerns about atmospheric air pollution from flue gases emitted during wood biomass combustion, particularly oxides of nitrogen (NOx) and particulates <10�μm diameter (PM10). In the United Kingdom (UK) a small scale biomass heat generation support scheme, the Renewable Heat Incentive (RHI), has been introduced. Qualifying criteria for this scheme have included limits for flue gas emissions of NOXand PM10 of 150 and 30�g per gigajoule (g/GJ) of energy input, respectively. In an experiment, three locally available types of Willow (Salix spp) and one of Sitka spruce (Picea sitchensis) woodchips, showed significant differences in physical and chemical constituents, gaseous and particulate emissions. During combustion in a 120�kW biomass system, air flows, flue gas temperatures and energy output correlated with gaseous emissions, NOxwith raw fuel ash, nitrogen, phosphorus and potassium content, as did all flue gas particulate fractions. PM10 ranged from 30.3 to 105.7�g/GJ and NOxfrom 91.2 to 174.3�g/GJ. Sitka spruce produced significantly lower emissions of PM10 and NOx(27.5 and 52.6% less, respectively) than the three willow fuels, from which emissions were above the RHI emissions limits. � 2017 Elsevier Ltd
Agri-Food and Biosciences Institute, Large Park, Hillsborough, Northern Ireland, United Kingdom
Recommended Citation:
Olave R,J,, Forbes E,et al. Particulate and gaseous emissions from different wood fuels during combustion in a small-scale biomass heating system[J]. Atmospheric Environment,2017-01-01,157