Analysis of the impact of mass flow extraction on the change of parameters in a labytinth seal using the Stodola method

• Autorzy: Kaszowski P. , Dzida M.
• Języki publikacji: EN

Abstrakty

EN

Labyrinth seals are an important element of a steam turbine set design. The use of diagnostic extraction makes it possible to control the operation of a seal by providing information on the thermodynamic parameters along the length of the seal. Diagnostic extraction has a considerable impact on the change of the parameters, the amount of the extracted mass. This article describes the dependence of pressure in the clearance downstream of the extraction and in the chamber in which the extraction point is located, on the amount of the extracted steam. Relation between pressure and nominal seal clearance is discussed, which enables the control of the seal operation. The calculations of the seal operation parameters were performed using a method proposed by Stodola.

Słowa kluczowe

EN

labyrinth seals; Fanno curve; diagnostic extraction; Stodola

PL

uszczelnienie labiryntowe; krzywa Fanno; ekstrakcja diagnostyczna; Stodola

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMEEAC
• Rocznik: 2016
• Tom: Vol. 11, no 1
• Strony: 55--67
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Kaszowski P.

• Gdańsk University of Technology Ul. Narutowicza 11/12, 80-233 Gdańsk, Poland Phone: [phone]

autor

Dzida M.

• Gdańsk University of Technology Ul. Narutowicza 11/12, 80-233 Gdańsk, Poland Phone: [phone]

Bibliografia

• [1] Chmielniak T.; Turbiny cieplne: podstawy teoretyczne. Gliwice, Poland, Wydawnictwo Politechniki Śląskiej 1998.
• [2] Kaszowski P.; Analiza pracy uszczelnień labiryntowych z upustem, Master's dissertation. Gdańsk University of Technology, Institute of Power Engineering and Industrial Instrumentation, Gdańsk, Poland 2011 .
• [3] Kaszowski P., Dzida M., Krzyślak P.; Calculations of labyrinth seals with and without diagnostic extraction in fluid flow machines. Polish Maritime Research 4(80) 2013 Vol 20; pp. 34-38
• [4] Kosowski K.; Steam and gas turbines., Publishing house: PG Delft University, Gdańsk, Poland 2007.
• [5] Krzyślak P.; A method of diagnosing labyrinth seals in fluid-flow machines. Polish Maritime Research 3(57) 2008 Vol 15.
• [6] Perycz S.; Turbiny parowe i gazowe. Gdańsk, Poland, Wydawnictwo Politechniki Gdańskiej 1988
• [7] Szczeglajew A.; Turbiny Parowe. Publishing house: Energia, Moscow, Russia 1967
• [8] Tipton D., Scott T., Vogel R.; Labyrinth Seal Analysis. Volume 3. Analitycal and Experimental Development of a Design Model for Labyrinth Seals, General Motors Corp Indianapolis Allison Gas Turbine Div 1998
• [9] Trütnovsky K.; Berührungsfreie Dichtungen, Grundlagen und Anwendungen der Strömung durch Spalte und Labirynthe. VDI – VERLAG bh DÜSSELDORF, Verlag des Vereins Deutscher Ingeniuere 1964.
• [10] Yucel U.; Leakage and swirl velocities in labyrinth seals.A thesis presented to the Graduate and research committee of Leigh University in Candidacy of the Degree of Master of Science; Lehigh University 1996

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.