Emissions and health effects from heavy-duty engines running on alternative fuels
Two batches of rapeseed oil methyl esters containing approximately 10 ppm phosphorus (RME10), one rapeseed oil methyl ester with a content of less than 1 ppm phosphorus (RME) and common diesel fuel (DF) were investigated regarding their effects on regulated and non-regulated emissions at a modern diesel engine (Euro Ⅳ), equipped with an SCR system (selective catalytical reduction of nitrogen oxides). The regulated emissions of carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx) and particulate matter (PM) were determined for RME10 and DF. Non-regulated emissions of alkenes, alkynes, aromatics, aldehydes,ketones and the particle size distribution were measured for all fuels. Additionally the mutagenic potency of the particulate matter was determined by Ames tests.RME10 led to lower regulated emissions than conventional diesel fuel. Regarding the non-regulated emissions RME showed the lowest values compared with RME10 and DF. The catalytic activity of the SCR system was reduced after an endurance test of 1000 hours using RME10 as fuel resulting in higher regulated and non-regulated emissions.The mutagenicity of all PM extracts was very low compared to prior studies. This is probably due to an effective conversion by the SCR system. Nevertheless, mutagenic effects of PM extracts increased moderately after the endurance test.
Diesel engine exhaust gas emissions SCR system RME phosphorus content mutagenicity
Jürgen Krahl Axel Munack Jürgen Bünger Norbert Grope Yvonne Ruschel Olaf Schr(o)der
University of Applied Sciences Coburg, D-96406 Coburg, Germany Federal Agricultural Research Centre (FAL), Braunschweig, Germany University of G(o)ttingen, Center for Occupational and Social Medicine
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1932-1935
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）