可再生能源2018，Vol.36Issue(7)：963-968,6.
小型柴油发电机燃用乙醇掺混燃料负荷特性模拟分析
Simulation analysis of load characteristics of a small diesel generator fueled with ethanol-diesel blend
摘要
Abstract
Tests were carried out on a generator powered by a F186 diesel engine. A three-dimensional combustion model is established and validated by experimental data. The injection location and injection angle of each hole are considered in the model. Ten load cases were simulated. The results show that the maximum combustion pressure increases and the cylinder pressure also increases at the later combustion stage as the load increases, but the cylinder pressure decreases slightly with the increase of load during the compression stage. The initial ignition occurs in the region of initial spray peripheral near the underside of the nozzle, and the higher load results in the earlier combustion start point. The corresponding phase of the maximum combustion pressure is obviously advanced with the increase of load under light load, but the corresponding phase of the maximum combustion pressure is basically unchanged with further increase of load. The concentration gradient of NO distribution in the spatial region is basically the same at different loads. The NO concentration above the piston top surface is higher, and the injection angle of each nozzle has effect on the distribution of NO.关键词
乙醇/柴油/发动机/燃烧模拟/喷油参数/NO排放Key words
ethanol/diesel/engine/combustion simulation/injection parameters/NO emission performance分类
能源科技引用本文复制引用
梁昱,周立迎,姚固文,徐明飞,袁彬,石敏慧..小型柴油发电机燃用乙醇掺混燃料负荷特性模拟分析[J].可再生能源,2018,36(7):963-968,6.基金项目
国家自然科学基金项目(51366002) （51366002）
贵州省教育厅省教育科学规划重点项目(2014A065) （2014A065）
贵阳市科技局贵阳学院专项资金资助项目(GYU-KYZ[2018]06) （GYU-KYZ[2018]06）
贵州省科技厅科技计划项目(黔科合基础[2018]1006). （黔科合基础[2018]1006）
