Methodology for characterisation and simulation of turbocharged diesel engines combustion during transient operation. Part 1: Data acquisition and post-processing☆
Methodology for characterisation and simulation of turbocharged diesel engines combustion during transient operation. Part 1: Data acquisition and post-processing☆
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DOI：
10.1016/j.applthermaleng.2008.02.011
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发表时间：
2009
影响因子：
6.4
通讯作者：
J. Serrano;F. Arnau;V. Dolz;P. Piqueras
中科院分区：
文献类型：
--
作者：
J. Serrano;F. Arnau;V. Dolz;P. Piqueras
遵守即将到来的排放指令要求研究人员努力开发有效的程序和工具来应对技术紧急情况。这项工作的第一个目标是通过结合实验数据和计算模型，开发与带有EGR系统的涡轮增压柴油发动机瞬态运行期间燃烧特性相关的方法和工具。最终目标是获得一个有价值的在一维气体动态代码中使用的瞬态运行的现象学燃烧模拟。工作分为两部分。第一部分描述了在发动机恒定转速下的全负荷瞬态试验，并处理了定义发动机瞬态行为的主要瞬时量级的测量和后处理。提供了有关在瞬态操作期间进行测量的装置的信息。每个记录的幅度都要根据影响测量的物理现象进行特定的后处理，以达到所有信号之间的同步。这种彻底的分析配置了一个紧凑的过程，将其作为子例程合并到计算代码中。结果数据作为燃烧诊断代码的输入数据，该代码提供了瞬态过程中每个发动机循环的热释放率（RoHR）。
Compliance with oncoming emission directives demands a great effort from researchers on the development of effective procedures and tools to cope with the technological exigencies. The first aim of this work focuses on the development of methodologies and tools related to the combustion characterisation in turbocharged diesel engines with EGR systems during transient operation by combining experimental data and calculation models. The final objective is to obtain a phenomenological combustion simulation during transient operation worthwhile to be used in 1-D gas dynamic codes. The work is divided into two parts. This first part provides a description of the full-load transient test at constant engine speed and tackles the measurement and post-processing of the main instantaneous magnitudes defining the engine transient behaviour. Information regarding devices for measuring during transient operation is provided. Every recorded magnitude is subjected to its specific post-processing according to physical phenomena affecting the measurement in order to reach the synchronisation among all the signals. This thorough analysis configures a compact procedure incorporated as a subroutine into a computational code. Resulting data serve as the input data of a combustion diagnostic code that provides the rate of heat release (RoHR) for every engine cycle of the transient process.