An Experimental Investigation of Low Octane Gasoline in Diesel Engines
An Experimental Investigation of Low Octane Gasoline in Diesel Engines
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DOI：
10.1115/icef2010-35056
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
S. Ciatti;S. Subramanian
中科院分区：
文献类型：
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作者：
S. Ciatti;S. Subramanian
传统的燃烧技术难以满足当前的排放标准。特别地，氮氧化物（NOx）和颗粒物（PM）排放限制了柴油燃料在压燃式发动机中的利用。先进的燃烧概念已经证明了联合收割机结合燃料效率和改善排放性能的潜力。低温燃烧（LTC）可降低NOx和PM排放，并具有与现代柴油发动机相当的效率。预混合、低温压缩点火提供低PM和NOx排放的能力取决于实现最佳燃烧相位。柴油机操作的LTC受到早期爆震燃烧的限制，而常规汽油机操作的LTC受到失火的限制。因此，本文提出了使用一种性质介于这两种边界燃料之间的非常规燃料的概念。低辛烷值（84罗恩）汽油在合理的高功率密度下表现出与柴油相当的效率和最低的氮氧化物排放量（在12巴BMEP和2750 rpm下，氮氧化物排放量为1 g/kW-hr）。版权所有© 2010 by ASME
Conventional combustion techniques struggle to meet the current emissions norms. In particular, oxides of nitrogen (NOx ) and particulate matter (PM) emissions have limited the utilization of diesel fuel in compression ignition engines. Advance combustion concepts have proved the potential to combine fuel efficiency and improved emissions performance. Low Temperature Combustion (LTC) offers reduced NOx and PM emissions with comparable modern diesel engine efficiencies. The ability of premixed, low-temperature compression ignition to deliver low PM and NOx emissions is dependent on achieving optimal combustion phasing. Diesel operated LTC is limited by early knocking combustion whereas conventional gasoline operated LTC is limited by misfiring. So the concept of using an unconventional fuel with the properties in between those two boundary fuels has been experimented in this paper. Low octane (84 RON) gasoline has shown comparable diesel efficiencies with lowest NOx emissions at reasonable high power densities (NOx emission were 1 g/kW-hr at 12 bar BMEP and 2750 rpm).Copyright © 2010 by ASME