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首页> 外文期刊>Atmospheric environment >A Study On Emission Performance Of A Diesel Engine Fueled With Five Typical Methyl Ester Biodiesels
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A Study On Emission Performance Of A Diesel Engine Fueled With Five Typical Methyl Ester Biodiesels

机译：五种典型甲基酯生物柴油为燃料的柴油机排放性能研究

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摘要

As an alternative and renewable fuel, biodiesel can effectively reduce diesel engine emissions, especially paniculate matter and dry soot. However, the biodiesel effects on emissions may vary as the source fuel changes. In this paper, the performance of five methyl esters with different sources was studied: cottonseed methyl ester (CME), soybean methyl ester (SME), rapeseed methyl ester (RME), palm oil methyl ester (PME) and waste cooking oil methyl ester (WME). Total particulate matter (PM), dry soot (DS), non-soot fraction (NSF), nitrogen oxide (NO_X), unburned hydrocarbon (HC), and carbon monoxide (CO) were investigated on a Cummins ISBe6 Euro III diesel engine and compared with a baseline diesel fuel. Results show that using different methyl esters results in large PM reductions ranging from 53% to 69%, which include the DS reduction ranging from 79% to 83%. Both oxygen content and viscosity could influence the DS emission. Higher oxygen content leads to less DS at high load while lower viscosity results in less DS at low load. NSF decreases consistently as cetane number increases except for PME. The cetane number could be responsible for the large NSF difference between different methyl esters.
机译：作为替代燃料和可再生燃料，生物柴油可以有效减少柴油发动机的排放，尤其是颗粒物和干烟灰。但是，生物柴油对排放的影响可能会随着源燃料的变化而变化。本文研究了五种不同来源的甲酯的性能：棉籽甲酯（CME），大豆甲酯（SME），菜籽甲酯（RME），棕榈油甲酯（PME）和废食用油甲酯（WME）。在康明斯ISBe6 Euro III柴油机上研究了总颗粒物（PM），干烟灰（DS），非烟灰馏分（NSF），氮氧化物（NO_X），未燃烧的碳氢化合物（HC）和一氧化碳（CO）。与基准柴油相比。结果表明，使用不同的甲酯会导致PM大幅降低53％至69％，其中DS降低79％至83％。氧含量和粘度都可能影响DS的发射。较高的氧含量导致高负荷下的DS较少，而较低的粘度导致低负荷下的DS较少。除PME外，随着十六烷值的增加，NSF持续下降。十六烷值可能是不同甲酯之间较大的NSF差异的原因。

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