准均质压燃二甲醚发动机的性能与排放特性研究

来源 :内燃机工程 | 被引量 : 0次 | 上传用户：wra207

【摘要】

：

在单缸二甲醚发动机上开展了从进气管导入不同量二甲醚对发动机性能与排放特性影响的试验研究.结果表明:采用准均质充量压缩工作模式时发动机可在较宽广的转速和负荷下运行;

【作者】

：

汪映李维胡铁刚周咙保刘圣华

【机构】

：

西安交通大学

【出处】

：

内燃机工程

【发表日期】

：

2004年期

【关键词】

：

内燃机二甲醚准均质充量压燃排放

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论文部分内容阅读

在单缸二甲醚发动机上开展了从进气管导入不同量二甲醚对发动机性能与排放特性影响的试验研究.结果表明:采用准均质充量压缩工作模式时发动机可在较宽广的转速和负荷下运行;热效率提高;排气温度略有降低;NOx排放下降了30%～50%,但HC和CO排放有所上升.随着进气管中引入的二甲醚量的增加,NOx、HC和CO排放都随之增加.采用预混准均质压燃工作模式是进一步提高二甲醚发动机的热效率并降低NOx排放的有效措施之一.

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准均质压燃二甲醚发动机的性能与排放特性研究

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