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甲醇柴油與生物柴油微粒排放粒徑分布特
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Size Distribution of Particulate Matter Emission from the Diesel Engine Burning Methanol-diesel Fuel and Biodiesel
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    摘要:

    以石化柴油為參照，在發(fā)動機(jī)臺架上，采用電子低壓沖擊儀及其附帶的兩級稀釋系統(tǒng)測試了燃用柴油、甲醇柴油和生物柴油排放的不同粒徑微粒的數(shù)量濃度、體積濃度，分析了發(fā)動機(jī)轉(zhuǎn)速、負(fù)荷以及燃油種類對微粒粒徑分布的影響。試驗(yàn)證明：在外特性下，柴油、甲醇柴油排放的微粒數(shù)量濃度隨轉(zhuǎn)速增大而增加，生物柴油排放的微粒數(shù)量濃度隨轉(zhuǎn)速沒有明顯變化規(guī)律；在2300r/min，生物柴油和柴油隨負(fù)荷的減小排放的微粒數(shù)量濃度增加；標(biāo)定功率下，柴油排放微粒的體積濃度大于生物柴油和甲醇柴油，但在核模態(tài)范圍內(nèi)，相對于柴油，甲醇柴油排放的微粒數(shù)量濃度是下降的，降幅達(dá)62.8%，生物柴油是上升的，升幅為

    Abstract:

    30.7%。The characteristics of particulate matter emission from the diesel engine burning diesel fuel(D), methanol-diesel fuel(M20) and biodiesel fuel(B) were tested respectively by using a two-stage dilution system and electrical low pressure impactor and the effects of the engine speed, load, as well as the different fuels on the particle size distribution were analyzed. The results indicated that the quantity of PM emission for methanol-diesel fuel(M20) and diesel fuels increases with rotation speed, but biodiesel doesn’t follow this rule on engine performance curve; the peak of PM emission for biodiesel and diesel fuels decreases with load rising at the speed of 2300r/min.On rated power mode, the total volume concentration of diesel is more than that of M20 and B. Compared with diesel, the quantity concentration of biodiesel increases by 30.7%, and the quantity concentration of M20 decreases by 62.8% in nuclear mode.

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王曉燕,李芳,葛蘊(yùn)珊,李洪文,張學(xué)敏.甲醇柴油與生物柴油微粒排放粒徑分布特[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(8):7-12. Size Distribution of Particulate Matter Emission from the Diesel Engine Burning Methanol-diesel Fuel and Biodiesel[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(8):7-12.

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