Emission Characteristics of Particulate Matter from Rural Household Biofuel Combustion in China

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• 作者：Xinghua Li ; Lei Duan ; Shuxiao Wang ; Jingchun Duan ; Xingming Guo ; Honghong Yi ; Jingnan Hu ; Chao Li ; Jiming Hao
• 刊名：Energy & Fuels
• 出版年：2007
• 出版时间：March 2007
• 年：2007
• 卷：21
• 期：2
• 页码：845 - 851
• 全文大小：283K
• 年卷期：v.21,no.2(March 2007)
• ISSN：1520-5029

文摘

Field measurements in rural households were conducted in three Chinese municipalities/provinces (Beijing,Chongqing, and Henan) to determine the emission characteristics of particulate matter from biofuel combustion.The selected biofuel types and stove types are representative of local rural areas. Particle number concentration,size distribution, and mass size distribution were determined. Both the particle number and mass of theseemissions were dominated by submicrometer particles. The emission factor of PM2.5 from combustion isbetween 1.80 and 7.00 g/kg of biofuel (dry basis) and 0.84-2.40 g/MJ of delivered energy and is averaged to4.21 g/kg of biofuel (dry basis) and 1.46 g/MJ delivered energy. In this study, it appears that particle emissionscan be correlated with combustion conditions and stove configuration. Particle emissions are the highest duringthe high power phase. Unfortunately, the more thermally efficient stove has higher per kilogram fuel particulatematter (PM) emissions than the less thermally efficient stoves, that is, the increase in thermal efficiency cannotoffset the increase in particle emissions.