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An investigation into the effects of injection behaviour on performance and emissions characteristics of a compression ignition engine fuelled with diesel and dimethyl ether

机译：研究喷射行为对以柴油和二甲醚为燃料的压燃式发动机性能和排放特性的影响

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摘要

The injection behaviour of diesel and dimethyl ether was investigated by means of advanced visualisation techniques and conventional performance and emissions engine testing. The results of these investigations were analysed collectively, with specific attention being paid the correlation between the injection characteristics of the two fuels, and the emissions of oxides of nitrogen. Analysis of the footage obtained clearly illustrates the differences between the injection characteristics, and analysis of the engine testing results revealed similar performance characteristics of diesel and dimethyl ether. The emissions of oxides of nitrogen are higher than those produced by diesel at low speeds, are similar at high engine speeds, and reduce with engine load. These characteristics can be attributed to the properties of the fuel and the physical geometry of the fuel injection system. Recommendations are made as to how to further this research into dimethyl ether as a viable alternative fuel.
机译：通过先进的可视化技术以及常规性能和排放发动机测试，研究了柴油和二甲醚的喷射行为。对这些调查的结果进行了综合分析，并特别注意了两种燃料的喷射特性与氮氧化物的排放之间的相关性。对获得的素材的分析清楚地说明了喷射特性之间的差异，对发动机测试结果的分析表明，柴油和二甲醚的性能特性相似。在低速行驶时，氮氧化物的排放量高于柴油产生的氮氧化物排放；在高发动机转速下，氮氧化物的排放量相似，并且随着发动机负荷的减少而降低。这些特性可以归因于燃料的性质和燃料喷射系统的物理几何形状。对于如何进一步研究二甲醚作为可行的替代燃料提出了建议。

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    Meiring Anton F.;

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  • 年度 2010
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