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首页> 外文会议>Proceedings of the 2009 spring technical conference of the ASME Internal Combustion Engine Division >EFFECTS OF BLENDING GASOLINE WITH ETHANOL AND BUTANOL ON ENGINE EFFICIENCY AND EMISSIONS USING A DIRECT-INJECTION, SPARK-IGNITION ENGINE
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EFFECTS OF BLENDING GASOLINE WITH ETHANOL AND BUTANOL ON ENGINE EFFICIENCY AND EMISSIONS USING A DIRECT-INJECTION, SPARK-IGNITION ENGINE

机译：汽油，丁香酚与汽油的掺混汽油对直喷，火花点火发动机的发动机效率和排放的影响

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The new U.S. Renewable Fuel Standard requires an increase of ethanol and advanced biofuels to 36 billion gallons by 2022. Due to its high octane number, renewable character and minimal toxicity, ethanol was believed to be one of the most favorable alternative fuels to displace gasoline in spark-ignited engines. However, ethanol fuel results in a substantial reduction in vehicle range when compared to gasoline. In addition, ethanol is fully miscible in water which requires blending at distribution sites instead of the refinery. Butanol, on the other hand, has an energy density comparable to gasoline and lower affinity for water than ethanol. Butanol has recently received increased attention due to its favorable fuel properties as well as new developments in production processes. The advantageous properties of butanol warrant a more in-depth study on the potential for butanol to become a significant component of the advanced biofuels mandate.rnThis study evaluates the combustion behavior, performance, as well as the regulated engine-out emissions of ethanol and butanol blends with gasoline. Two of the butanol isomers; 1-butanol as well as iso-butanol, were tested as part of this study. The evaluation includes gasoline as a baseline, as well as various ethanol/gasoline and butanol/gasoline blends up to a volume blend ratio of 85% of the oxygenated fuel. The test engine is a spark ignition, direct-injection, (SIDI), four-cylinder test engine equipped with pressure transducers in each cylinder. These tests were designed to evaluate a scenario in terms of using these alcohol blends in an engine calibrated for pump gasoline operation. Therefore no modifications to the engine calibration were performed.rnFollowing this analysis of combustion behavior and emissions with the base engine calibration, future studies will include detailed heat release analysis of engine operation without exhaust gas recirculation. Also, knock behavior of the different fuel blends will be studied along with unregulated engine out emissions.
机译：新的美国可再生燃料标准要求到2022年将乙醇和先进的生物燃料增加到360亿加仑。由于辛烷值高，可再生特性和毒性最小，乙醇被认为是替代汽油的最有利替代燃料之一。火花点火式发动机。但是，与汽油相比，乙醇燃料会导致车辆行驶里程大大减少。此外，乙醇与水完全混溶，需要在分配场所而不是在炼油厂进行混合。另一方面，丁醇的能量密度与汽油相当，对水的亲和力低于乙醇。丁醇由于其良好的燃料特性以及生产工艺的新发展，最近受到了越来越多的关注。丁醇的优越性能值得对丁醇成为高级生物燃料法规的重要组成部分的潜力进行更深入的研究。rn该研究评估了乙醇和丁醇的燃烧行为，性能以及规定的发动机排放物与汽油混合。两种丁醇异构体；作为该研究的一部分，对1-丁醇和异丁醇进行了测试。评估包括汽油作为基准，以及各种乙醇/汽油和丁醇/汽油的混合气，混合气的混合比例最高为含氧燃料的85％。该测试引擎是火花点火，直喷（SIDI）四缸测试引擎，每个气缸中均装有压力传感器。这些测试旨在评估在针对泵汽油运行进行校准的发动机中使用这些酒精混合物的情景。因此，没有对发动机标定进行任何修改。在基本发动机标定之后对燃烧行为和排放进行分析之后，未来的研究将包括在不进行废气再循环的情况下对发动机运行进行详细的散热分析。另外，还将研究不同燃料混合物的爆震行为以及未控制的发动机熄火排放。

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