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%0 Thesis
%A Stadermann, Max
%T Analyse und Modellierung zweiflutiger Turbinen unter Berücksichtigung der Wastegateströmung
%I Rheinisch-Westfälische Technische Hochschule Aachen
%V Dissertation
%C Aachen
%M RWTH-2020-10177
%P 1 Online-Ressource (3, xi, 99 Seiten) : Illustrationen, Diagramme
%D 2020
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
%Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2020
%X This work investigates the interaction of the turbine bypass (wastegate) with the turbine wheel and the combustion engine. A particular focus is on a extended modelling for the 1D engine process simulation of the double entry turbine under consideration of the wastegate behavior during unequal admission (unequal inlet pressure in the two scrolls).Due to the high complexity of the double entry turbine the wastegate is initially being investigated for a single entry turbine. The results can be summarized as follows: • For the quantification of the flow behavior of the wastegate independence of the wastegate angle and the adjacent pressure ratio, two methods were examined. Measurements with blocked turbine volute, where only the wastegate is admitted. Measurements with a complete turbine stage, where the waste gate mass flow is measured as the difference between the impeller and the total mass flow. With closed Wastegate, the impeller mass flow corresponds to the total mass flow. Both methods lead to comparable results. • The flow of the wastegate shows a not negligible dependence on the turbine pressure ratioΠT,ts, which shows an increase of up to ∆A3,s = 25
%F PUB:(DE-HGF)11
%9 Dissertation / PhD Thesis
%R 10.18154/RWTH-2020-10177
%U https://publications.rwth-aachen.de/record/804290