Wet steam flow in 1100 MW turbine

• Autorzy: Jun Gukchol , Kolovratník Michal , Hoznedl Michal

Identyfikatory

DOI

10.24425/ather.2021.138110

• Języki publikacji: EN

Abstrakty

EN

The paper deals with the wet steam flow in a steam turbine operating in a nuclear power plant. Using a pneumatic and an optical probe, the static pressure, steam velocity, steam wetness and the fine water droplets diameter spectra were measured before and beyond the last turbine low-pressure stage. The results of the experiment serve to understand better the wet steam flow and map its liquid phase in this area. The wet steam data is also used to modify the condensation model used in computational fluid dynamics simulations. The condensation model, i.e. the nucleation rate and the growth rate of the droplets, is adjusted so that results of the numerical simulations are in a good agreement with the experimental results. A 3D computational fluid dynamics simulations was performed for the low-pressure part of the turbine considering non-equilibrium steam condensation. In the post-processing of the of the numerical calculation result, the thermodynamic wetness loss was evaluated and analysed. Loss analysis was performed for the turbine outputs of 600, 800, and 1100 MW, respectively.

Słowa kluczowe

EN

steam turbine; wet steam; loss; non-equilibrium condensation; CFD

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2021
• Tom: Vol. 42, no 3
• Strony: 63--85
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Jun Gukchol

• Czech Technical University in Prague, Technická 4, 160 00, Prague, Czech Republic
• Doosan Škoda Power s.r.o., Tylova 1/57, 301 28, Pilsen, Czech Republic

autor

Kolovratník Michal

• Doosan Škoda Power s.r.o., Tylova 1/57, 301 28, Pilsen, Czech Republic

autor

Hoznedl Michal

• Czech Technical University in Prague, Technická 4, 160 00, Prague, Czech Republic

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).