Optimierung eines Abgasabsaugungstrichters

  • Michael Sammt

Student thesis: Master's Thesis

Abstract

As part of this master’s thesis, the extraction geometry of the exhaust gas extraction funnel in the AL-KO end-of-line test stand in Obdach was optimised. The aim of this study was to increase the efficiency of the exhaust and vapour extraction system in order to ensure a safe and clean working environment during the testing of lawn tractors. Previous investigations have shown that the existing system does not effectively remove all exhaust fumes and vapours, which impairs working conditions and poses a potential health risk to personnel.
As part of this study, the flow conditions within the existing funnel design were analysed using modern flow simulations (CFD). As part of the investigations, an optimised geometry was analysed in order to increase the extraction performance and reduce the escape of emissions into the test cabin. The optimisation was based on the simulation of slightly modified funnel shapes. The velocities and pressures at selected points provided key insights into the efficiency of the extraction system.
The simulation results were evaluated by comparing them with real measurements of the velocities at the selected points. The evaluation of the optimised design resulted in an increase in extraction performance. This results in a reduction in exhaust emissions, which leads to a significant improvement in working conditions and staff safety.
The results of the present study not only lead to an immediate optimisation of the operating conditions, but also provide valuable approaches for the future optimisation of similar extraction systems on industrial test benches.
Date of AwardOct 2024
Original languageGerman (Austria)
SupervisorGeorg Aichinger (Supervisor)

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