Özet:

Diesel particle filters (DPFs) are used in many diesel vehicles today. In the framework of this study, the design of the exhaust system for a diesel vehicle with a diesel oxidation catalyst (DOC) and DPF, the filtration characteristics of different DPF materials (SiC, Crd, AT) have been studied under the New European Driving Circuit (NEDC) standards. The exhaust system model is determined by the study of the diesel vehicles in use. The study was carried out in three-dimensional form through the AVL-FIRE software. The work characteristics of the materials that are alternative to SiC (Silicon Carbon), the most commonly used material as DPF material, have been studied. The effects of the DPF material on heat spread, pressure decrease and emissions, this study has been shown. The findings obtained when studied found that the materials used show similar characteristics and that the materials used in the course of the study were suitable for use as DPF materials. In addition, the DPF material has been shown to have effects on CO and NOx, especially low pressure.  The heat losses for the SiC material DPF are high at the beginning of regeneration, the CO emissions are significantly reduced in the use of the AT (Aluminum Titanat) material, and the crd (Cordierit) material is among the significant results of the study that the pressure decline increases.

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