Estimation of the steam condensation flow via CFD methods

• Autorzy: Zakrzewski W. , Karcz M. , Kornet S.
• Języki publikacji: EN

Abstrakty

EN

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, 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 a simple ideal steam or the equilibrium condensation model.

Słowa kluczowe

EN

condensation model; steam turbine; CFD

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2012
• Tom: nr 124
• Strony: 111--124
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Zakrzewski W.

• The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences, Centre for Thermomechanics of Fluids, Energy Conversion Department, Fiszera 14, 80-231 Gdańsk, Poland

autor

Karcz M.

• The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences, Centre for Thermomechanics of Fluids, Energy Conversion Department, Fiszera 14, 80-231 Gdańsk, Poland

autor

Kornet S.

• The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences, Centre for Thermomechanics of Fluids, Energy Conversion Department, Fiszera 14, 80-231 Gdańsk, Poland
• Conjoint Doctoral School at the Faculty of Mechanical Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

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