DOI: 10.1016/j.atmosenv.2015.01.006
Scopus记录号: 2-s2.0-84920913330
论文题名: Particulate concentrations during on-farm combustion of energy crops of different shapes and harvest seasons
作者: Fournel S ; , Palacios J ; H ; , Morissette R ; , Villeneuve J ; , Godbout S ; , Heitz M ; , Savoie P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 104 起始页码: 50
结束页码: 58
语种: 英语
英文关键词: Agricultural biomass
; Combustion
; Energy crops
; Particulate matter
; Physicochemical properties
Scopus关键词: Agriculture
; Biomass
; Boilers
; Chemical elements
; Chlorine
; Combustion
; Combustion chambers
; Environmental regulations
; Fly ash
; Fuels
; Harvesting
; Agricultural biomass
; Energy crops
; Environmental concerns
; Increasing energy costs
; Particulate Matter
; Physicochemical property
; Statistical significance
; Steady-state condition
; Crops
; catalysis
; combustion
; concentration (composition)
; data set
; energy crop
; fossil fuel
; grass
; particulate matter
; physicochemical property
; Article
; biomass
; black spruce
; bulk density
; combustion
; energy crop
; falling
; harvest
; low temperature
; moisture
; Panicum virgatum
; particle size
; particulate matter
; Phalaris
; Phalaris arundinacea
; physical chemistry
; Pinus banksiana
; priority journal
; spring
; willow
; wood
; Canada
; Quebec [Canada]
; Miscanthus
; Panicum virgatum
; Phalaris arundinacea
; Poaceae
; 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: The increasing energy costs and environmental concerns of farms have motivated the growing interest of agricultural producers in using farm-grown biomass as a substitute to fossil fuels for heat production. However, the use of non-woody biomass is facing challenges due to variability regarding chemical composition and fuel properties that may induce problems during combustion such as particulate matter (PM). The aim of this work was to measure and compare total PM concentrations during on-farm combustion of wood and four agricultural crops: short-rotation willow, switchgrass, miscanthus and reed canary grass. In order to study the influence of physicochemical properties, different shapes (pellets, chips and chopped grasses) and harvest seasons (fall and spring) were also evaluated. In this context, a representative small-scale (29kW), multi-fuel boiler for light commercial use was utilized. The boiler was also non-catalytic so that the burning took place in a single combustion chamber. Overall, twelve different biomass fuels were tested and each product was burned three times. Mean PM concentration of wood (416mgNm-3 at 7vol% O2) was lower than that of the four dedicated energy crops (505-1417mgNm-3 at 7vol% O2). However, because of the high variability between the experiments, no statistical significance was observed at P>0.1 level except in one case. The PM amounts were high compared to literature data and Quebec's environmental regulation mainly because of the boiler system used. Except for willow, pelletized products decreased PM levels by 22-52% compared to chopped materials. Bulky biomass of low density was unable to reach steady-state conditions and produced compounds associated with incomplete combustion including PM. Spring-harvested biomass fuels showed a PM reduction up to 48% compared to fall-harvested crops. This was likely due to a 20-60% decrease of several chemical elements in the biomass, namely S, Cl, K and P which are the main constituents of fly ash. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81968
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, Sherbrooke, Qc, Canada; Research and Development Institute for the Agri-Environment, Quebec City, Qc, Canada; Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, Quebec City, Qc, Canada
Recommended Citation:
Fournel S,, Palacios J,H,et al. Particulate concentrations during on-farm combustion of energy crops of different shapes and harvest seasons[J]. Atmospheric Environment,2015-01-01,104