The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine
The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine
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添加戊醇对生物柴油柴油发动机颗粒物排放特性的影响
DOI：
10.1016/j.fuel.2017.07.093
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发表时间：
2017-12
期刊：
影响因子：
7.4
通讯作者：
Huang Zuohua
中科院分区：
文献类型：
--
作者：
Yang Ke;Wei Long;Cheung C. S.;Tang Chenglong;Huang Zuohua
本文研究了直喷式柴油机的燃烧性能和碳烟颗粒的物理化学特性。该发动机以15%和30%体积比的混合有生物柴油的正戊醇为燃料，并在三种发动机负荷（20%、50%和80%负荷）下以1800 rpm运行。与纯生物柴油相比，戊醇-生物柴油混合物的燃烧开始时间延迟，燃烧持续期缩短。在所有测试条件下，生物柴油-戊醇混合物的所有尺寸组的颗粒数浓度降低，这是由于较长的点火延迟时间、较低的粘度和沸点以及较高的戊醇氧含量。生物柴油的制动比元素碳（EC）排放低于柴油，添加戊醇后，EC排放进一步降低。而对于有机碳（OC）的排放，生物柴油和柴油在发动机负荷下的排放水平相近，而混合燃料在发动机低负荷和中负荷下的OC含量较高。与纯生物柴油相比，高比例戊醇的混合燃料在发动机负荷下具有较低的颗粒相多环芳烃总排放量和较低的苯并[a]芘当量（BaPeq）。
In the present study, combustion performance and the physical and chemical characteristics of soot particles from a DI diesel engine were studied. The engine was fueled withn-pentanol mixed with biodiesel at 15% and 30% by volume and operated at 1800 rpm under three engine loads (20%, 50% and 80% load). In comparison with pure biodiesel, the pentanol-biodiesel blends lead to delayed start of combustion and shortened combustion duration. The particle number concentrations of all size groups are reduced for biodiesel-pentanol blends in all the tested conditions, due to longer ignition delay time, lower viscosity and boiling point, and higher oxygen content of pentanol. The brake specific elemental carbon (EC) emissions of biodiesel were found to be lower compared to diesel and after adding pentanol in biodiesel, the EC emissions further decrease. While for organic carbon (OC) emissions, biodiesel and diesel are at similar level under the tested engine loads, and the blends show a higher fraction of OC at low and medium engine loads. The blended fuel with higher proportion of pentanol gives lower total particle-phase PAHs emissions and also a lower benzo[a]pyrene equivalent (BaPeq) compared to pure biodiesel under the tested engine loads.
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影响因子：
7.4
作者：
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影响因子：
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影响因子：
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