Fuel economy and emission characteristics of Gas-to-Liquid (GTL) and Rapeseed Methyl Ester (RME) as alternative fuels for diesel engines

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• 作者：Ahmed Hassaneen^a ; ^{geushey@hotmail.com} ; Axel Munack^b ; Yvonne Ruschel^b ; Olaf Schroeder^b ; Jurgen Krahl^c
• 关键词：RME biodiesel ; GTL ; Fuel economy ; Emissions ; Particulates
• 刊名：Fuel
• 出版年：2012
• 期刊代码：33_00162361
• 类别：ce
• 出版时间：July, 2012
• 卷：97
• 期：Complete
• 页码：125-130
• 文件大小：554 K

摘要

The effect of RME (Rapeseed Methyl Ester) biodiesel and GTL (Gas-to-Liquid) fuels on the fuel consumption and emission characteristics including particulate matter of diesel engine was investigated. The engine tests were carried out based on the ESC 13-mode test procedure. Particulate Matter (PM) distribution was analyzed using the scanning mobility particle seizer (SMPS). Compared to the base line diesel fuel;biodiesel (RME) emitted up to 70%less specific CO;up to 50%less specific HC;and 60%less specific PM emissions. For RME fuel;the majority of the particle numbers were in the diameter range of 10-30 nm. For the conventional diesel and GTL fuels;the majority of PM emissions were in the diameter range of 30-200 nm. The GTL fuel emitted slightly less specific CO;HC;NO_x;and PM than the conventional diesel fuel. The major deficit of the biodiesel fuel was its higher specific fuel consumption rate that was in the range up to 15%(by weight) higher than the other fuels. A relatively higher NO_x and CO₂ emission at most of the engine loads was encountered for biodiesel fuel. The CO₂ emission of the GTL fuel was up to 5%lower than the specific CO₂ emission of the other two fuels.