...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Energy >Effect of the engine calibration parameters on gasoline partially premixed combustion performance and emissions compared to conventional diesel combustion in a light-duty Euro 6 engine
【24h】

Effect of the engine calibration parameters on gasoline partially premixed combustion performance and emissions compared to conventional diesel combustion in a light-duty Euro 6 engine

机译：与轻型欧6发动机的常规柴油机燃烧相比，发动机校准参数对汽油部分预混燃烧性能和排放的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A design of experiments analysis was performed to investigate the effects of pilot quantity, combustion phasing and exhaust gas recirculation on performance and emissions in a gasoline partially premixed combustion to find out the optimal combination of the all varied parameters.The experimental activities were performed on a light-duty Volvo Euro 6 diesel engine. The test was performed under steady-state operating conditions, nine test points were chosen inside the operating area of the New European Driving Cycle and the Worldwide Harmonized Light vehicles Test Cycles. A fractional factorial analysis in partially premixed combustion on the single and combined effect of the main engine calibration parameters and a global comparison between partially premixed combustion and conventional diesel combustion on the engine performance and emissions adopting the optimal calibration parameters obtained from design of experiments analysis for both combustion modes analysed were presented. The purpose was to obtain the calibration parameters setting that permits to achieve high efficiency and low emissions as well.The partially premixed combustion results show the highest efficiency and lowest NOx emissions adopting a high exhaust gas recirculation rate combined with advanced combustion phasing and lower pilot quantity. Higher efficiency, up to 2.0% units, was obtained in partially premixed combustion with respect to the conventional diesel combustion due to the lower heat transfer loss. Lower soot (about two times) and NOx (about −0.5 g/kWh) levels with partially premixed combustion were obtained and compared to conventional diesel combustion at the same exhaust gas recirculation level.A reduction of about 5% of CO2and fuel consumption with a 50% of reduction on NOx and soot simultaneously were obtained for partially premixed combustion on the New European Driving Cycle estimation results with respect to the diesel combustion. The information derived from this work are useful to develop and calibrate a light-duty engine that operate in gasoline partially premixed combustion mode achieving NOxclose to the Euro 6 limit without adopting any after treatment system.
机译：进行了实验分析设计，以研究引燃量，燃烧定相和废气再循环对部分预混汽油燃烧性能和排放的影响，以找出所有不同参数的最佳组合。轻型沃尔沃Euro 6柴油发动机。该测试在稳态运行条件下进行，在“新欧洲行驶周期”和“全球协调轻型车辆测试周期”的运行区域内选择了9个测试点。部分预混燃烧对主机标定参数的单一和组合效应的分数阶因子分析，以及部分预混燃烧和常规柴油燃烧对发动机性能和排放的全局比较，采用从实验分析设计获得的最佳标定参数。介绍了两种燃烧模式。目的是获得可以实现高效率和低排放的校准参数设置。部分预混燃烧结果表明，采用高废气再循环率并结合先进的燃烧定相和较低的引燃量，可以实现最高效率和最低NOx排放。由于较低的传热损失，相对于常规柴油机燃烧，在部分预混燃烧中获得了高达2.0％单位的更高效率。在相同的废气再循环水平下，获得了较低的烟灰（约两倍）和NOx（约-0.5 g / kWh）水平，并与传统柴油机燃烧相比进行了比较。在相同的废气再循环水平下，CO2和燃料消耗减少了5％。对于柴油燃烧，根据新欧洲行驶周期估算结果，部分预混燃烧可同时减少50％的NOx和烟灰。从这项工作中获得的信息对于开发和校准以汽油部分预混燃烧模式运行的轻型发动机非常有用，该燃烧模式在不采用任何后处理系统的情况下实现NOx接近欧6限值。

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