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首页> 外文期刊>Heat Transfer Research >REDUCING POLLUTION EMISSIONS BY ADDING SYNGAS GENERATED BY A PLASMA-ASSISTED GASOLINE CONVERTER IN THE INTAKE MANIFOLD OF A GASOLINE ENGINE WITH ELECTRONIC FUEL INJECTION SYSTEM
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REDUCING POLLUTION EMISSIONS BY ADDING SYNGAS GENERATED BY A PLASMA-ASSISTED GASOLINE CONVERTER IN THE INTAKE MANIFOLD OF A GASOLINE ENGINE WITH ELECTRONIC FUEL INJECTION SYSTEM

机译：在汽油发动机的进气歧管中添加等离子体辅助汽油转化器产生的SYNGAS来减少污染排放

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摘要

The objectives of this study were to determine the performance and exhaust emissions of a gasoline engine with a fuel injection system (Subaru EH72 FI) modified for operation with addition of some amount of synthethis gas ("syngas") containing hydrogen in the intake manifold and to compare the results with those obtained for gasoline operation at the same engine load and crankshaft speed. As the engine working load, Endress ESE 1506 DSG-GT ES DUPLEX electric generator with effective output in the range from 3 to 15 kW is used. Syngas was generated by partial oxidation of gasoline with air in a plasma-assisted fuel converter. Steam was added to the gasoline-air converter fuel mixture to reduce the amount of soot produced in a plasma reactor, and thereby increase its reliability and operational life. A completely automated engine and plasma converter test bench was developed. Experimental results clearly demonstrate substantial reduction in the NOx engine emissions when hydrogen-rich synthesis gas generated by a plasma-assisted fuel converter was added to the intake manifold of the tested engine. The most prominent reduction in harmfull pollutions is observed for lean conditions. Meanwhile total gasoline consumption (including gasoline needed for the plasma-assisted converter) with syngas addition increases compared to the original engine. This increase ranges from 1.05 for a stochiometric composition of the fuel mixture to 1.15 times for a lean mixture (excess air coefficient of the fuel mixture lambda = 1.26). As a continuation of this work, investigations of ultralean regimes (lambda similar to 1.43-1.67) are scheduled to validate the theoretical results obtained in (Migun et al., 2006).
机译：这项研究的目的是确定带有燃油喷射系统（斯巴鲁EH72 FI）的汽油发动机的性能和废气排放，该系统经过改装，可在进气歧管中添加一定量的含氢气的合成气（“合成气”）进行操作。将结果与在相同发动机负载和曲轴转速下的汽油运行结果进行比较。作为发动机的工作负载，使用Endress ESE 1506 DSG-GT ES DUPLEX发电机，其有效输出功率在3到15 kW之间。在等离子辅助燃料转换器中，汽油与空气的部分氧化产生了合成气。将蒸汽添加到汽油-空气转换器的燃料混合物中，以减少在等离子体反应器中产生的烟灰量，从而增加其可靠性和使用寿命。开发了全自动发动机和等离子转换器测试台。实验结果清楚地表明，当将由等离子体辅助燃料转换器产生的富氢合成气添加到被测发动机的进气歧管中时，NOx发动机的排放量将大大减少。在贫油条件下，有害污染的减少最为明显。同时，与原始发动机相比，添加合成气的总汽油消耗量（包括等离子辅助转化器所需的汽油）有所增加。这种增加的范围从燃料混合物的化学计量组成的1.05到稀薄混合物的1.15倍（燃料混合物的过量空气系数λ= 1.26）。作为这项工作的继续，计划对超稀薄体系（λ类似于1.43-1.67）进行研究，以验证在（Migun等，2006）中获得的理论结果。

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