Unsteady forces acting on rotor blades of a large power steam turbine control stage at different levels of partial admission

• Autorzy: Lampart P. , Szymaniak M. , Kardaś A.
• Języki publikacji: EN

Abstrakty

EN

Partial admission flow in the control stage of a 200 MW steam turbine is investigated with the help of a RANS solver with the k-w SST turbulence model in the code Fluent. A 2D model of flow at the mid-span section of the full-annulus is assumed. The results exhibit interesting details of the process of expansion in the control stage. Unsteady forces acting on the rotor blades of the control stage are calculated, and are subject to Fourier analysis.

Słowa kluczowe

EN

Partial admission turbines; control stage; CFD; Blade forces

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2003
• Tom: nr 114
• Strony: 5--17
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Lampart P.

• Institute of Fluid Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Szymaniak M.

• Institute of Fluid Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Kardaś A.

• Institute of Fluid Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

Bibliografia

• 1.Failure risk evaluation of a turbinę rotor's control stage, Materiał Integrity Solutions Inc. Project Bulletin, 2001.
• 2.Wakeley G, Potts I.: Unsteady flow phenomena in partially-admitted steam turbinę control stages, Proc. IMechE Conference on Turbomachinery; Rugby, UK, December 9-10, 1996, IMechE Paper S461/006/96, 77-86.
• 3. He L.: Computation of unsteady flow through steam turbine blade rows at partial admission, Proc. I. Mech E., Part A, J. Power and Energy, 211(1997), 197-205.
• 4 Skopek J., Vomela J., Taje L., Polansky J.: Partial admission in an axial turbine stage, Proc. of 3rd European Gonf. on Turbomachinery, Fluid Dynamics and Thermodynamics, London, UK, March 2-5, 1999, 681-691.
• 5. Błażko E., Lidke M.: REGZ-98 code. Calculations of the Fuli-Control. Modified Algorithm for Thermal-Hydraulic Calculations of Blading Systems and Control Valves with Preset Settings, Diagnostyka Maszyn Report 9/98 1998), Gdańsk, Poland (in Polish).
• 6. Fluent/UNS/Rampant, User's Guide, Fluent Inc., 2000.