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Investigations on Transonic Flow of Super-Critical CO2 Through Carbon Ring Seals

[+] Author Affiliations
Eike Hylla, Markus Schildhauer, Richard Büssow, Kolja Metz, Robert Klawes

MAN Diesel & Turbo SE, Berlin, Germany

Paper No. GT2015-42486, pp. V009T36A004; 13 pages
  • ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
  • Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
  • Montreal, Quebec, Canada, June 15–19, 2015
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5680-2
  • Copyright © 2015 by ASME


This paper gives an overview of numerical and experimental investigations on super-critical CO2 flow through carbon floating ring seals (CRS). The established simulation model considers the real gas effect, temperature deformation and the shaft rotation. For validation extensive measurements of the leakage rates, pressures and temperatures at various positions within the seal were conducted on a compressor prototype. Details of the measurement setup and the test procedure are given. The experimental results are discussed. A comparison of the measured data to the model prediction shows an overall good agreement.

Copyright © 2015 by ASME



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