涡流室式LPG柴油双燃料发动机燃烧模型

根据涡流室、主燃室中气体流动过程的质量和能量的交换关系 ,建立了涡流室式 LPG ( liquefiedpetrdeum gas) /柴油双燃料发动机准维燃烧模型的方程 ,提出了如何使两种不同性质燃料的燃烧在同一个燃烧过程中相互联系、相互作用的燃烧模型。根据模型提供的方程 ,对缸内燃烧过程和 NOx 的生成进行了模拟仿真 ,将其同发动机台架试验的结果进行了验证、分析和讨论。

Quasi-dimensional combustion model for engines of LPG-diesel dual fuels with swirl combustion chamber

Based on the mass and the energy equations of the gases flowing between the swirl chamber and the main combustion chamber, the equations of a quasi-dimensional combustion model for engines fuelled by LPG-diesel dual fuels system with the swirl combustion chamber was developed in this paper. A special combustion model was proposed to describe the correlation of the two different kind of fuels during the combustion process. Numerical simulation was performed for the combustion process and the NO x generation inside the cylinder using the model developed. Numerical result was analyzed and verified with the experimental result.