压缩喷嘴孔径对火焰浮起长度的影响

2013/02/13   下载量： 5 次

方案摘要

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应用领域 汽车及零部件
检测样本 汽车电子电器
检测项目 热性能>燃烧特性
参考标准 暂无

This paper reports on the experimental investigation of the flame lift-off length for five different orifice diameters (.0.100, .0.130, .0.160, .0.190, and .0.227 mm) of a diesel injector nozzle. The flame lift-off was determined from the measurement of 308 nm OH chemiluminescence for different fuel injection pressures using commercial diesel fuel and a Common Rail fuel injection equipment of passenger car size. The fuel injection pressures were 450, 900, and 1350 bar. The experiments were conducted at air pressures of 30, 50, 70, and 90 bar and at an air temperature of 750 K in a constant pressure spray chamber. It was observed that the flame lift-off length increases with increased injection pressure and increased orifice diameter.

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北京欧兰科技发展有限公司
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