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Estimation of the steam condensation flow via CFD methods

Abstract

The results of numerical simulations to predict the performance of different steam models have been presented. All of the considered models of steam condensation have been validated on the base of benchmark experiment employing expansion in nozzle and next on the low pressure part of the steam turbine stage. For numerical analysis three models have been finally used – the ideal steam model without condensation, an equilibrium steam model and a nonequilibrium steam model. It was confirmed that only the inclusion of the nonequilibrium effects in the computations can lead to a proper prediction of the condensation phenomena in the test nozzle. However the basic characteristics of the low-pressure turbine can be succesfully estimated using simple ideal steam or the equilibrium condensation model.

Authors (3)

  • Photo of  Witold Zakrzewski

    Witold Zakrzewski

    • Politechnika Gdańska Conjoint Doctoral School at the Faculty of Mechanical Engineering
  • Photo of  Michał Karcz

    Michał Karcz

    • Instytut Maszyn Przepływowych PAN Zakład Konwersji Energii
  • Photo of  Sebastian Kornet

    Sebastian Kornet

    • Instytut Maszyn Przepływowych PAN Zakład Konwersji Energii

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Details

Category:
Articles
Type:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:
Transactions of the Institute of Fluid-Flow Machinery pages 111 - 124,
ISSN: 0079-3205
Language:
English
Publication year:
2012
Bibliographic description:
Zakrzewski w., Karcz M., Kornet S.: Estimation of the steam condensation flow via CFD methods// Transactions of the Institute of Fluid-Flow Machinery. -., nr. 124 (2012), s.111-124
Verified by:
Gdańsk University of Technology

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