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Numerical Simulation of Combustion and Emission in Medium-Duty Diesel Engine Fuelled with Biodiesel Blended Fisher-Tropsh Diesel

机译:生物柴油混合Fisher-Tropsh柴油驱动的中型柴油机燃烧和排放的数值模拟

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摘要

This numerical simulation study investigates the combustion and emission of biodiesel blended Fisher-Tropsh (F-T) diesel fuels in a medium-duty diesel engine. It shows that diesel engine fuelled with F-T diesel and biodiesel blended fuels has better practicability. With the ESE module of FIRE software, the diesel of engine model is set up and the correctness is corroborated by the test result. Based on this, the paper carries on a simulation analysis of combustion and emission of biodiesel blended F-T diesel, and makes a contrast with diesel on the mean pressure, mean temperature, as well as the mass fraction of nitrogen monoxide (NO) and soot. The result shows that, the higher proportional, the lower mean pressure in-cylinder. NO grows later and its mass fraction is lower. Besides, the mass fractions soot of mixed fuels is far below diesel.
机译:这项数值模拟研究调查了中型柴油发动机中生物柴油混合费雪(F-T)柴油的燃烧和排放。结果表明,以F-T柴油和生物柴油混合燃料为燃料的柴油发动机具有更好的实用性。通过FIRE软件的ESE模块,可以设置发动机型号的柴油机,并通过测试结果证实其正确性。在此基础上,对生物柴油掺混F-T柴油的燃烧和排放进行了模拟分析,并与柴油的平均压力,平均温度以及一氧化氮(NO)和烟灰的质量分数进行了对比。结果表明,比例越高,缸内平均压力越低。 NO生长较晚,其质量分数较低。此外,混合燃料的烟灰质量分数远低于柴油。

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