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EMISSION POTENTIALS OF HYDROGEN ENGINE

机译：氢气发动机的发射电位

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The main aim of the paper is a description and numerical simulation of problems connected with hydrogen combustion at ICE. Two simulation tools have been applied. The GT Power code combining classical approach to in-cylinder phenomena modeling with 1-D model of pipes has been used as the base one to model NO{sub}x emission production in dependence on engine parameters. The CFD code based on previously published Advanced Multizone Eulerian Model (AMEM) has been adapted to simulate hydrogen combustion using full reaction scheme. Reaction rates have been solved using Arrhenius law. Possibilities of treatment highly stiff source terms caused by fast kinetics are discussed. Results representing sensitivity study on influence of main engine and mixture properties on combustion and NO{sub}x formation, e.g. compression ratio, air excess, start of combustion, are presented. Approach of lean mixture in connection with retarded spark advance and rather high compression ratio used as the measure to reduce NO{sub}x emissions are discussed.
机译：本文的主要目的是在冰上与氢燃烧相关的问题的描述和数值模拟。已应用两种仿真工具。将经典方法与管道1-D模型相结合的GT功率代码已经用作型号的基础，以依赖于发动机参数来模拟NO {Sub} x发射产生。基于先前公布的高级多态欧拉模型（AMEM）的CFD码已经适用于使用全反应方案模拟氢燃烧。使用Arrhenius法律解决了反应率。讨论了由快速动力学引起的高度刚刚源术语的治疗方法。结果表示主发动机和混合性能对燃烧的影响和NO {Sub} x形成的敏感性研究。提出了压缩比，空气过量，燃烧的开始。讨论了用作减少NO {SUB} x排放的延迟火花前进和相当高压缩比的瘦混合物的方法。

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