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Alexander Johannes Hacks and Dieter Brillert
In the sCO2-HeRo project, the Chair of Turbomachinery at the University of Duisburg-Essen developed, built and tested a turbomachine with an integral design in which the compressor, generator and turbine are housed in a single hermetic casing. However, b...
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Tina Unglaube and Dieter Brillert
With an increase in fluid densities in centrifugal compressors, fluid-structure interaction and coupled acoustoelastic modes receive growing attention to avoid machine failure. Besides the vibrational behavior of the impeller, acoustic modes building up ...
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Florian Felix Lapp, Sebastian Schuster, Simon Hecker and Dieter Brillert
This paper presents experimental data on shear-stress-driven liquid water films on a horizontal plate formed by the condensation of superheated steam. The experimental results were obtained in the Experimental Multi-phase Measurement Application (EMMA) a...
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Tilman Raphael Schröder, Sebastian Schuster and Dieter Brillert
The designers of radial turbomachinery need detailed information on the impact of the side chamber flow on axial thrust and torque. A previous paper investigated centripetal flow through narrow rotor?stator cavities and compared axial thrust, rotor torqu...
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Tilman Raphael Schröder, Hans-Josef Dohmen, Dieter Brillert and Friedrich-Karl Benra
In the side-chambers of radial turbomachinery, which are rotor?stator cavities, complex flow patterns develop that contribute substantially to axial thrust on the shaft and frictional torque on the rotor. Moreover, leakage flow through the side-chambers ...
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Alexander Johannes Hacks, Sebastian Schuster and Dieter Brillert
This paper aims to give an understanding of an effect which stabilizes the inlet conditions of compressors for supercritical CO2 (sCO2) operating close to the critical point. The effect was observed during testing of the turbomachine within the sCO2-HeRo...
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Bo Hu, Dieter Brillert, Hans Josef Dohmen and Friedrich-Karl Benra
In radial pumps and turbines, the centrifugal through-flow in both the front and the back chambers is quite common. It strongly impacts the core swirl ratio, pressure distribution, axial thrust and frictional torque. In order to investigate these relatio...
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Bo Hu, Dieter Brillert, Hans Josef Dohmen and Friedrich-Karl Benra
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