The master’s thesis presents the design and preparation of the measuring system for analysis of the impact of catalyst concentration in the fuel on regeneration parameters of the diesel particulate filter (DPF) of a internal combustion engine (ICE). DPF is a key component in achieving low ICE particulate emissions. ICEs are in modern vehicles connected with a vehicle through a mechanical, material, electrical and data connections. To test the ICE in a controlled laboratory environment, it is necessary to take the engine from the vehicle, in this process some of the previously mentioned connections break. The operation of the engine in a laboratory environment must be established by the proper connections or simulation of signals through data grid. Based on the obtained measurement results, global thermodynamic parameters, the effects of an iron-based fuel-borne catalyst during the DFD regeneration process, and a thermodynamic analysis of the combustion process in the cylinder during the DFD regeneration were analysed. The results of particulate matter emissions by number and mass are compared with current emissions standards, which set the permissible limit for pollutant emissions for passenger vehicles. Based on the results and analysis, we have found that using an iron-based fuel-borne catalyst:
- regeneration process of a DPF is shortened,
- the number of particles increases with the increase of iron concentration in the fuel during the DPF regeneration process,
- improved the oxidation of NO to NO2 which further improves the oxidation of the particles during DFD regeneration,
- iron-based fuel-borne catalyst significantly reduces amount of added fuel required to perform the DPF regeneration process.