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首页> 外文会议>Proceedings of the 2009 spring technical conference of the ASME Internal Combustion Engine Division >SFC BENEFIT WITH SPLIT INJECTION IN TWO-STROKE DIESEL ENGINE
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SFC BENEFIT WITH SPLIT INJECTION IN TWO-STROKE DIESEL ENGINE

机译：两冲程柴油机中SFC喷射的SFC优势

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摘要

The influence of split-injection on engine performance is studied using system and in-cylinder simulation of a two-stroke medium speed diesel engine. System level models for the engine and fuel system and a multi-dimension CFD model for the combustion chamber were developed and calibrated with experimental data. Calibration of these models from the available test data is discussed and calibration results are presented. The SFC and NOx predictions show good sensitivity to injection timing variation. These calibrated models were then used to simulate split injection through the modification of the fuel injector. Split injection achieved through this modification results in fuel savings while maintaining same NOx levels.
机译：利用系统和二冲程中速柴油机缸内仿真研究了分流喷射对发动机性能的影响。开发了发动机和燃油系统的系统级模型以及燃烧室的多维CFD模型，并使用实验数据进行了校准。讨论了从可用测试数据中对这些模型的校准，并给出了校准结果。 SFC和NOx预测显示出对喷射正时变化的良好敏感性。然后将这些校准模型用于通过修改喷油器来模拟分流喷射。通过这种改进实现的分流喷射可节省燃料，同时保持相同的NOx水平。

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