首页> 外文会议>Emissions measurement and testing, 2009 >Investigation of Sulfate Nanoparticulate Formation from a Catalyzed Diesel Particulate Filter on an Engine Fueled with ULSD and a Biodiesel Blend
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Investigation of Sulfate Nanoparticulate Formation from a Catalyzed Diesel Particulate Filter on an Engine Fueled with ULSD and a Biodiesel Blend

机译:在装有ULSD和生物柴油混合物的发动机上,催化柴油颗粒过滤器形成硫酸盐纳米颗粒的研究

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An off-road direct injection diesel engine equipped with a catalyzed diesel particulate filter (DPF) was subject to two sets of experiments in which two fuels, ultra low sulfur diesel (ULSD) and 20 vol. % biodiesel blend (B20) were compared. In the first set of experiments lubricant oil consumption was measured by sulfur tracing. In the second set of experiments nanoparticle formation downstream of the DPF was assessed. It was found that number concentration of nanoparticles released from the catalyzed DPF depends on fuel type and on engine operating condition and hence the onset of filter regeneration. For low soot loading times B20 fueling produces lower number concentrations, whereas longer soot loading times produce lower number concentrations with ULSD fueling.
机译:配备催化柴油机微粒过滤器(DPF)的越野直喷柴油机经过两组实验,其中两种燃料,超低硫柴油(ULSD)和20体积比。比较了%生物柴油混合物(B20)。在第一组实验中,通过硫磺示踪法测量了润滑油的消耗量。在第二组实验中,评估了DPF下游的纳米颗粒形成。发现从催化的DPF释放的纳米颗粒的数量浓度取决于燃料类型和发动机工况,并因此取决于过滤器再生的开始。对于较短的烟尘装载时间,B20加油会产生较低的浓度,而对于ULSD燃油,较长的烟尘装载时间会产生较低的浓度。

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