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Effect of the Metal-Foam Gasoline Particulate Filter (GPF) on the Vehicle Performance in a Turbocharged Gasoline Direct Injection Vehicle over FTP-75
International Journal of Automotive Technology ( IF 1.6 ) Pub Date : 2020-10-02 , DOI: 10.1007/s12239-020-0108-6
Sungha Baek , Jaeho Cho , Kangjin Kim , Seungho Ahn , Cha-Lee Myung , Simsoo Park

Worldwide regulations on particulate matter for passenger vehicles have become stricter in recent years, which makes it difficult to satisfy for gasoline direct injection (GDI) vehicles. In this study, the level of reduction efficiency of particle emissions with a metal-foam gasoline particulate filter (GPF) for the turbocharged GDI vehicle was evaluated in the federal test procedure (FTP)-75 mode operation. The particle number (PN) emissions were analyzed using the AVL particle counter (APC) and fast response differential mobility spectrometer (DMS500) for particle size distribution. The PN concentration from the base GDI vehicle with only TWC is 1.64 E+12 number/km (#/km), while the value of the GPF-equipped case is 5.02 E+11 #/km with 69 % filtration efficiency in the vehicle test mode. In particular, the reduction rate of small particles under 23 nm in size was strongly improved with the additional installation of the metal-foam GPF. The maximum pressure drop through the GPF reached approximately 39 mbar at the highest acceleration point of phase 1 of the FTP-75 mode. The upstream temperature of the GPF was distributed at approximately 380 ∼ 510 oC in the vehicle test. The results show that the GPF-equipped GDI vehicle can satisfy the stringent particle regulation by Euro 6 in a straightforward manner.



中文翻译:

FTP-75上的金属泡沫汽油微粒过滤器(GPF)对涡轮增压汽油直喷汽车性能的影响

近年来,有关乘用车的颗粒物的全球法规变得更加严格,这使得汽油直喷(GDI)车辆难以满足要求。在这项研究中,通过联邦测试程序(FTP)-75模式操作评估了用于涡轮增压GDI车辆的金属泡沫汽油颗粒过滤器(GPF)的颗粒物减排效率水平。使用AVL粒子计数器(APC)和快速响应差分迁移谱仪(DMS500)分析了粒子数量(PN)排放,以进行粒径分布。仅具有TWC的基本GDI车辆的PN浓度为1.64 E + 12 number / km(#/ km),而配备GPF的情况的值为5.02 E + 11#/ km,车辆中的过滤效率为69%测试模式。尤其是,额外安装了金属泡沫GPF后,尺寸在23 nm以下的小颗粒的还原率大大提高。在FTP-75模式的阶段1的最高加速点,通过GPF的最大压降达到约39 mbar。GPF的上游温度分布在大约380〜510o C在车辆测试中。结果表明,配备GPF的GDI车辆可以直接满足Euro 6的严格颗粒调节要求。

更新日期:2020-10-02
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