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Year 2023
Year 2022
  • Numerical Study of the Impinging Jets Formed by an Injector with Different Nozzle Diameters
    Publication

    - SAE Technical Papers - Year 2022

    The collision of two or more liquid jets may provide considerable atomisation and efficient mixing of injected substances at the same time. This phenomenon is used, among others, in rocket engines, where the fuel and oxidiser are introduced separately and almost immediately mixed through self-impingement. Depending on the injection and operating conditions, diverse configurations of impinging jets are used, such as doublets,...

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Year 2021
  • A conceptual design and numerical analysis of the mixerless urea-SCR system
    Publication

    - Combustion Engines - Year 2021

    In the present study, an innovative design of the urea-selective catalytic reduction (SCR) system without conventional mixing elements was developed. The aim was to obtain a high degree of urea decomposition, and uniform ammonia distribution at the inlet to the catalyst, while minimising the liquid film deposition and keeping the compact design. The concept of the design was based on creating high turbulences and elongating...

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  • Numerical analysis of the flow rig for UWS spray examination in exhaust system-relevant conditions
    Publication

    - Combustion Engines - Year 2021

    In the present study, a flow rig with optical access intended for spray investigations in exhaust system-relevant conditions was analysed in terms of flow and temperature in the spray area using numerical simulations. The operation of the rig was examined for a wide range of exhaust mass flow rates, temperatures and various forms of UWS (urea-water solution) spray plumes. The locations of the injector and thermocouple were verified....

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