• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>EAEC European automotive congress >POLLUTANT EMISSIONS FROM DI DIESEL ENGINE STARTING WITH DIFFERENT BIODIESEL BLENDS
【24h】

POLLUTANT EMISSIONS FROM DI DIESEL ENGINE STARTING WITH DIFFERENT BIODIESEL BLENDS

机译：从不同的生物柴油混合物开始的DI柴油发动机的污染物排放

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The starting is a critical stage of diesel engine operation with respect to pollutant emissions (HC, CO and particulate matter), specific fuel consumption and stability of the combustion process, among others. Additionally, the starting is a very common transient process of the engine operation, which has been incorporated into the European certification cycle of light duty vehicles (NEDC). In this work, a turbocharged, direct injection (DI), diesel engine equipped with common rail injection system and EGR strategy has been tested during the starting. The engine was tested at two different starting modes: “cold start” mode (temperature of cooling water and lube oil were around ambient temperature ～20°C) and “warm start” (the engine was previously warmed up). Pollutant emissions (HC, CO, NO_x and smoke opacity) and operating parameters such as rotation speed, torque, air and fuel mass flow rates and EGR ratio were registered during the tests. The engine was fueled with a low sulfur diesel fuel and with biodiesel fuels. Biodiesel fuels were tested pure and blended with 70% v/v of diesel fuel. Biodiesel fuels tested were obtained from rapeseed, sunflower and soybean oils. The results show that biodiesel fuels lead to a reduction of smoke opacity during cold and warm engine start with similar nitrogen oxides (NO_x) emissions.
机译：启动是柴油发动机操作的关键阶段，相对于污染物排放（HC，CO和颗粒物），特定的燃料消耗和燃烧过程的稳定性等。另外，启动是发动机操作的一个非常常见的瞬态过程，该过程已被纳入欧洲轻型税车（NEDC）的欧洲认证周期。在这项工作中，在起始期间已经测试了配备共轨注射系统和EGR策略的涡轮增压，直喷（DI），柴油发动机。该发动机以两种不同的起始模式测试：“冷启动”模式（冷却水的温度和润滑油周围环境温度〜20°C），并“温热的开始”（发动机先前预热）。在测试期间登记污染物排放（HC，CO，NO_X和烟雾不透明度）和操作参数，例如转速，扭矩，空气和燃料质量流量和EGR比。发动机用低硫柴油燃料和生物柴油燃料燃料。生物柴油燃料纯净并与70％V / V的柴油燃料混合。测试的生物柴油燃料从油菜籽，向日葵和大豆油获得。结果表明，生物柴油燃料导致冷热发动机期间减少烟雾不透明度，从相似的氮氧化物（NO_X）排放。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号