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@PHDTHESIS{Falke:958009,
      author       = {Falke, Felix},
      othercontributors = {Pischinger, Stefan and Wirsum, Manfred},
      title        = {{U}ntersuchung von {T}urbinen unter pulsierender
                      {B}eaufschlagung},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {RWTH Aachen University},
      reportid     = {RWTH-2023-05065},
      pages        = {1 Online-Ressource : Illustrationen, Diagramme},
      year         = {2023},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University; Dissertation, Rheinisch-Westfälische Technische
                      Hochschule Aachen, 2023},
      abstract     = {In order to expand the testing possibilities of a hot gas
                      test bench for mechanical tests on exhaust gas turbochargers
                      under engine-realistic pulsation, the object of this work is
                      to develop a pulsation unit which is installed between the
                      steady-state combustion chamber and the turbocharger. The
                      aim of the new development of the pulsation unit is to
                      achieve sufficiently high pulsation coefficients Ψ for a
                      wide range of internal combustion engines regardless of the
                      number of cylinders. The validation of the pulsation unit is
                      based on engine test bench experiments on the turbocharger
                      of a 1.0 L three-cylinder engine. A load variation at n =
                      2000 min-1 from pme = 10 bar to pme = 20 bar shows that the
                      pressure pulsations are reproduced with sufficient accuracy
                      at all operating points. With Ψ = 1.19, the pulsation unit
                      at the LET operating point deviates only marginally from the
                      values of the three-cylinder engine (Ψ =1.21). Known
                      concepts so far achieve values of Ψ < 0.7. The
                      investigation of the wastegate flap movement with optical
                      measurement technology was carried out with engine-realistic
                      exhaust pulsation, the comparable mechanical excitation
                      leads to a matching WG flap movement. It could be shown that
                      the pulsation generator works reliably. The operational
                      reliability of the design has been experimentally
                      demonstrated for maximum exhaust gas temperatures of T = 700
                      °C.},
      cin          = {412310},
      ddc          = {620},
      cid          = {$I:(DE-82)412310_20140620$},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2023-05065},
      url          = {https://publications.rwth-aachen.de/record/958009},
}