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Efficiency Approximation of Centrifugal Compressors in the Cordier Diagram

Schnelle Fakten

  • Interne Autorenschaft

  • Weitere Publizierende

    Yannick Lattner, Marius Geller

  • Veröffentlichung

    • 2023
    • Band Proceedings of 15th European Conference on Turbomachinery Fluid dynamics & Thermodynamics
  • Organisationseinheit

  • Fachgebiete

    • Maschinenbau allgemein
  • Format

    Preprint (Artikel)

Zitat

Y. Lattner, M. Geller, and N. Kluck, “Efficiency Approximation of Centrifugal Compressors in the Cordier Diagram,” Proceedings of 15th European Conference on Turbomachinery Fluid dynamics & Thermodynamics. Euroturbo, Florence, 2023.

Abstract

We present a simulation data-based efficiency approximation for radial turbocompressors, which is implemented in the well-known Cordier diagram. A sophisticated CAE workflow is used to calculate the operational characteristics of 50 machine designs with 50 impeller geometry variations each. A Kriging-based surrogate model is trained to approximate the efficiency of any machine designs' best geometry design. The models are implemented into a machine design workflow. As a result, duty-specific Cordier lines are introduced. They are automatically generated for a set of machine design parameters. The efficiency of the designs along the duty-specific Cordier lines is approximated. Using optimization techniques, an optimal compressor design for the given duty on every specific Cordier line may be identified. This highly increases the amount of information available in the early design stages for radial turbocompressors.

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