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Tytuł artykułu
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Identyfikatory
Warianty tytułu
Konferencja
International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
Języki publikacji
Abstrakty
The results of gas dynamic improvement of the last stage in the low-pressure cylinder of a steam turbine are presented. The turbine stage performance and the 3D flow patterns were obtained with the CFD solver FlowER. Stage modernisation was carried out in two ways. First, stage blade sections were renovated, and then the 3D blade shape was optimised using the CFD and optimisation techniques. The optimised stage has stator blades with a compound lean at the hub and a compound sweep at the tip. The efficiency of the improved stage is higher by roughly 2 percent at nominal flow conditions and is up to 10 percent for low flow rate conditions as compared to that of the original stage.
Słowa kluczowe
Rocznik
Tom
Strony
291--298
Opis fizyczny
Bibliogr. 8 poz.
Twórcy
autor
- Institute for Mechanical Engineering Problems of NAS of Ukraine,
autor
- Institute for Mechanical Engineering Problems of NAS of Ukraine,
autor
- Institute for Mechanical Engineering Problems of NAS of Ukraine,
autor
- Institute for Mechanical Engineering Problems of NAS of Ukraine,
Bibliografia
- [1] Torre A., Cecchi S., 2007, Latest Developments and Perspectives in the Optimised Design of LP Steam Turbines at ANSALDO, 7th European Conf. on Turbomash. Fluid Dynam. and Thermodynam., Athens, Greece, pp. 19–40.
- [2] Yershov S.V., and Rusanov A.V., 1996, “The Application Program Package FlowER For The Calculation Of 3D Viscous Flows Through Multi Stage Turbomachines“, Certificate Of State Registration Of Copyright, Ukrainian State Agency for Copyright and Related Rights, ΠA No 77, 19.02.1996 (in Ukrainian).
- [3] Lampart P., Rusanov A., Yershov S., Marcinkowski S., Gardzilewicz A., 2005, Validation of a 3D RANS Solver With a State Equation of Thermally Perfect and Calorically Imperfect Gas on a Multi-Stage Low-Pressure Steam Turbine Flow, Trans. ASME. J. Fluids Eng., No 1, pp. 83–93.
- [4] Lampart P., Yershov S., Rusanov A., 2002, Validation of turbomachinery flow solver on turbomachinery test cases, Intern. conf. SYMKOM'02: Compressor & turbine stage flow path theory, experiment & user verification, Cieplne Maszyny Przeplywowe. Turbomachinery, Politechnika Lodzka, Lodz, Poland, No. 122, pp. 63–70.
- [5] Wilcox D.C., 2004, Turbulence Modeling for CFD, 2nd ed. – DCW Industries, Inc., La Canada, California, 540 p.
- [6] Menter F.R., 1994, Two-equation eddy viscosity turbulence models for engineering applications, AIAA J., No 11, pp. 1299–1310.
- [7] Himmelblau D. M., 1972, Applied Nonlinear Programming, Mcgraw-Hill, Book. Company, New York, New York, 416 p.
- [8] Yershov S.V., 1994, The quasi-monotonous ENO scheme of increased accuracy for integrating Euler and Navier-Stokes equations, Mathematical Modelling, 6, No 11, p. 63–75 (in Russian).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f13e5c5e-1557-48f6-a6f7-59cccf8ae9e6