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Effects of Olefins Content on Exhaust Emissions. Final Report.
| 题名： | Effects of Olefins Content on Exhaust Emissions. Final Report. |
| 关键词： | content；emission；fins；report；final；ects；proper；pressure；technology；different |
| 摘要： | Understanding the impacts of fuels on emissions from modern gasoline-powered vehicles is important for EPA and CARB models that are used for reformulated gasolines. A number of more recent CRC and EPA programs have examined the impacts of fuel properties on the emissions of the most modern vehicles, including properties such as sulfur content, T50, T90, ethanol content, aromatics content and Reid Vapor Pressure (RVP). The effect of olefin content has not been extensively studied since the Auto/Oil Air Quality Improvement Research Program and other studies in the early 1990s. The coefficients in the EPA and CARB models are largely based on this older data. The goal of this study was to measure tailpipe emissions from a fleet ofTier 2 light-duty gasoline vehicles operating on two fuels with different olefin contents. Regulated and toxic exhaust emissions were measured on vehicles operated over the LA-92 test cycle. This study provides information that significantly improves our understanding of the effects of gasoline olefin content on exhaust emissions for the newest technology vehicles and can be used to update models employed in the evaluations of reformulated gasolines. |
| 报告类型： | 科技报告 |
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