CAJ | 학술논문

EGR系统是治理内燃机排放污染物Nq的有效方法之一，在PTO台架上对SNH4102型柴油机EGR系统进行标定试验，采用真空度控制EGR阀开度，实现EGR系统的调节。在柴油机额定转速下，将测功器开至100％，75％，50％，10％；在最大扭矩下，将测功器开至100％，75％，50％；及怠速工况下，找到EGR阀最佳开度，完成EGR系统的标定；并通过NHA-501型废气分析仪和FLB-100不透光式烟度计等测量排放物的含量。结果表明：在SNH4102型柴油机台架试验中，EGR系统对于NOx的控制有明显的效果，对CO和HC等排放物的抑制作用不明显。
EGR계통시치리내연궤배방오염물Nq적유효방법지일，재PTO태가상대SNH4102형시유궤EGR계통진행표정시험，채용진공도공제EGR벌개도，실현EGR계통적조절。재시유궤액정전속하，장측공기개지100％，75％，50％，10％；재최대뉴구하，장측공기개지100％，75％，50％；급태속공황하，조도EGR벌최가개도，완성EGR계통적표정；병통과NHA-501형폐기분석의화FLB-100불투광식연도계등측량배방물적함량。결과표명：재SNH4102형시유궤태가시험중，EGR계통대우NOx적공제유명현적효과，대CO화HC등배방물적억제작용불명현。
EGR （Exhaust Gas Recirculation） system is one of the methods to control NOx emission pollutant of combustion engine. The calibration of EGR system of SNH4102 diesel is conducted in PTO rig test. The valve opening is dependent on vacuum control, and the regulation of exhaust gas recirculation has achieved. In rated speed of diesel engine, the dynamometer is opened to 100%, 75%, 50%, 10%; at maximum torque, the dynamometer will be opened to 100%, 75%, 50%; and idle speed will be set to find the best opening of EGR valve respectively to complete calibration of EGR system. By exhaust gas analyzer of NHA-501 and opacity style smoke meters of FLB-100, the content of emission is measured. The results show that EGR system has a significant effect on NOx control, but little effect on CO, HC emission in SNH4102 rig test.