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A NUMERICAL STUDY OF BOUNDARIES OF THE OPERATING RANGE OF THE HCCI COMBUSTION

机译：HCCI燃烧操作范围边界的数值研究

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摘要

In order to support development of HCCI engines, a fast control oriented combustion model is under development. As a part of this development process a study of boundary conditions of the stable operating range is made. The purpose of this study is to define the method of defining the boundary of stable HCCI combustion and a method of its calculation. In this work the boundary of stable combustion is defined as the temperature necessary for achieving stable combustion. This temperature will depend on several other operating factors: mass fraction of fuel, mass fraction of CP, engine speed and pressure. In the paper the individual influences of each of these operating factors on the previously mentioned temperature are analysed. From this analysis a function for the calculation of this temperature is derived. By using this function it is possible to define threshold for stable combustion at each operating point within the range of operating conditions used in this analysis.
机译：为了支持HCCI发动机的发展，正在开发出快速的控制燃烧模型。作为该开发过程的一部分，对稳定操作范围的边界条件进行了研究。本研究的目的是定义定义稳定HCCI燃烧边界的方法及其计算方法。在这项工作中，稳定燃烧的边界定义为实现稳定燃烧所需的温度。该温度取决于其他几种操作因素：燃料的质量分数，CP，发动机速度和压力的质量分数。在本文中，分析了每个操作因素对先前提到的温度的个体影响。从该分析来，推导出计算该温度的函数。通过使用该功能，可以在该分析中使用的操作条件范围内在每个操作点处定义稳定燃烧的阈值。

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