Adjustable (rotated) stator blade aerodynamics in adaptive control of extraction/condensing turbines

• Autorzy: Lampart P.
• Języki publikacji: EN

Abstrakty

EN

Cogeneration of electric energy and heat as well as seasonal changes of the condenser pressure in low-pressure extraction/condensing turbines require adaptive control to adapt the geometry of the blading system to the changing flow conditions. In this paper adaptive control is achieved by means of restaggering (rotating) adjustable stator blades. An increase of turbine efficiency and power coming from adaptive control is numerically estimated for a group of two exit stages of an extraction/condensing turbine of power 60 MW. The calculations are made with the help of a computer code FlowER – a 3D solver of turbomachinery flows based on Reynolds-averaged Navier-Stokes equations for perfect gas.

Słowa kluczowe

EN

LP turbine; turbine stage group; adaptive control

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2018
• Tom: nr 141
• Strony: 41--52
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Lampart P.

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

Bibliografia

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• [2] Deich M.E., Filippov G.A., Lazarev L.Y.: Atlas of Axial Turbine Cascade Profiles. Mashinostroenie, Moscow 1965 (in Russian).
• [3] Łuniewicz B., Obrzut D., Szyrejko Cz., Kietliński K., Gardzilewicz A.: The flow path of 7CK65 steam turbine for a combined cycle power plant. Cieplne Maszyny Przepływowe (Turbomachinery) 128(2005), 345–356.
• [4] Puzyrewski R.: Cascade of nozzles for mass flow rate control in a heat and power turbine. Urząd Patentowy PRL (Polish Patent Office), Nr 96981, 1978-07-05 (in Polish).
• [5] Puzyrewski R., Malec A., Gardzilewicz A.: Redesign of adaptive stage for 25 MW cogeneration turbine. In: Proc. 10th Conf. Steam and Gas Turbines for Power and Cogeneration Plants, Karlovy Vary, Oct. 18–20, 1994.
• [6] Yershov S., Rusanov A.: The application package FlowER for the calculation of 3D viscous flows through multi-stage turbomachinery. Certificate of state registration of copyright, Ukrainian state agency of copyright and related rights, Feb. 19, 1996 (in Ukrainian).
• [7] Lampart P.: Investigations of Aerodynamics of Turbine Blading Systems with the Help of CFD. Zeszyty Naukowe IMP PAN, 544/1503/2006. Gdańsk 2006 (in Polish).
• [8] Lampart P., Puzyrewski R.: On the importance of adaptive control in extracting/condensing turbines. ASME Pap. GT2006-91160, 2006.
• [9] Lampart P., Puzyrewski R.: Numerical analysis of adaptive control in LP turbines. TASK Quart. 9( 2005), 2, 211–234.