„Eulerian – Eulerian” versus ,,Eulerian –Lagrangean” models of condensation

Sebastian Kornet; Janusz Badur

„Eulerian – Eulerian” versus ,,Eulerian –Lagrangean” models of condensation

Abstract

Liquid phase in the flowing vapor through stages of the steam turbine is the cause of a lot of failures. Nowadays, due to work of steam turbines at partial load, process of homogeneous and heterogeneous condensation still is current. The formation of drops of condensate under conditions other than nominal operation of turbine is a process still unknown. Engineers and designers involved in the development of power station machines using condensable working fluids, have a need to better understand the impact of moisture formation on a machine performance and its life time. In meeting this interest the large-scale experiments and measurements are generally most significant and required if the technical process is to be considered. Sometime, in these researchers, the numerical tools of Computational Fluid Dynamics (CFD) have become useful, giving a more detailed view on irreversible processes. In the present paper we have focused on the prediction of the spontaneous condensation in wet steam flow. Two main types of non-equilibrium condensation models are considered and compared. These are: eulerian-eulerian multi-phase approach and lagrangean-eulerian FSI approach.

Authors (2)

Sebastian Kornet
- Politechnika Gdańska Conjoint Doctoral School at the Faculty of Mechanical Engineering,
Janusz Badur
- Instytut Maszyn Przepływowych PAN Zakład Konwersji Energii

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Category:: Articles
Type:: artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:: Logistyka pages 4463 - 4473,
ISSN: 1231-5478
Language:: English
Publication year:: 2014
Bibliographic description:: Kornet S., Badur J.: „Eulerian – Eulerian” versus ,,Eulerian –Lagrangean” models of condensation// Logistyka. -., nr. 4 (2014), s.4463-4473
Verified by:: Gdańsk University of Technology