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首页> 外文期刊>International Journal of Automotive Technology >EFFECT OF INJECTION TIMING INJECTOR OPENING PRESSURE, INJECTOR NOZZLE GEOMETRY, AND SWIRL ON THE PERFORMANCE OF A DIRECT INJECTION, COMPRESSION-IGNITION ENGINE FUELLED WITH HONGE OIL METHYL ESTER (HOME)
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EFFECT OF INJECTION TIMING INJECTOR OPENING PRESSURE, INJECTOR NOZZLE GEOMETRY, AND SWIRL ON THE PERFORMANCE OF A DIRECT INJECTION, COMPRESSION-IGNITION ENGINE FUELLED WITH HONGE OIL METHYL ESTER (HOME)

机译：定时喷油器开启压力，喷油嘴几何形状和旋流对直接喷油，掺入甲基丙烯酸甲酯的压燃发动机的性能的影响

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Increasing petroleum prices, increasing threat to the environment from exhaust emissions and global warming have generated intense international interest in developing renewable and alternative non-petroleum fuels for engines. Evolving feasible technology and recurring energy crisis necessitated a continued investigation into the search for sustainable and clean-burning renewable fuels. In this investigation, Honge oil methyl ester (HOME) was used in a four stroke, single cylinder diesel engine. Tests were carried out to study the effect of fuel injection timing, fuel injector opening pressure (TOP) and injector nozzle geometry on the performance and combustion of CI engine fuelled with HOME. Injection timing was varied from 19 degrees bTDC (before top dead centre) to 27 degrees bTDC in incremental steps of 4 degrees bTDC; injector opening pressure was varied from 210 bar to 240 bar in steps of 10 bar. Nozzle injectors of 3, 4 and 5 holes, each of 0.2, 0.25 and 0.3 mm size were selected for the study. It was concluded that retarded injection timing of 19 degrees bTDC, increased injector opening pressure of 230 bar and 4 hole nozzle injector of 0.2 mm size resulted in overall better engine performance with increased brake thermal efficiency (BTE) and reduced HC, CO, smoke emissions. Further air-fuel mixing was improved using swirl induced techniques which enhanced the engine performance as well.
机译：石油价格上涨，废气排放和全球变暖对环境的威胁日益增加，引起了国际社会对开发用于发动机的可再生和替代性非石油燃料的浓厚兴趣。不断发展的可行技术和不断发生的能源危机，使得必须继续调查寻找可持续和清洁燃烧的可再生燃料。在这项研究中，本哈格油甲酯（HOME）用于四冲程单缸柴油发动机。进行测试以研究燃料喷射正时，燃料喷射器打开压力（TOP）和喷射器喷嘴几何形状对以HOME为燃料的CI发动机的性能和燃烧的影响。喷射时间从19度bTDC（在上止点之前）到27度bTDC，增量为4度bTDC。喷射器打开压力以10 bar为步长从210 bar变为240 bar。研究选择了3、4和5个孔的喷嘴喷嘴，每个喷嘴的尺寸分别为0.2、0.25和0.3 mm。结论是，延迟的喷射定时为19度bTDC，增加的喷射器打开压力为230 bar，以及尺寸为0.2 mm的4孔喷嘴喷射器，总体上具有更好的发动机性能，同时提高了制动热效率（BTE），并减少了HC，CO和烟雾排放。使用涡流诱导技术进一步改善了空燃混合，从而增强了发动机性能。

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