Calculation of labyrinth seals with extraction

• Autorzy: Joachimiak D. , Krzyślak P.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method for calculation of labyrinth seals with extraction. It involves a disorder of movement by interfering with the flow and bringing some irrelevant value of the mass stream out of a specific point of the labyrinth packing and outside the seal. It is described how to detect changes in the seal geometry by introducing a diagnostic parameter. The results of calculations are determined by an algorithm based on linearizations of de Saint - Venant equations.

Słowa kluczowe

EN

labyrinth seals; diagnostics; rotating machines; turbomachines; fluid-flow machines

PL

diagnostyka; maszyny wirujące; maszyny przepływowe

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2011
• Tom: Vol. 16, no 1
• Strony: 5--14
• Opis fizyczny: Bibliogr. 4 poz., tab., wykr.

Twórcy

autor

Joachimiak D.

autor

Krzyślak P.

• Poznan University of Technology Faculty of Working Machines and Transportation Chair of Thermal Engineering ul. Piotrowo 3, 60-965 Poznan, POLAND,

Bibliografia

• Joachimiak D. and Krzyślak P. (2011): Comparison of one-dimensional computational models of compressible and incompressible fluid flow in the labyrinth seals (in Polish). - Zeszyty Naukowe Politechniki Poznańskiej - Maszyny Robocze i Transport, No.64, 2011.
• Krzyślak P. (2008): A method of diagnosing labyrinth seals in fluid-flow machines. - Polish Maritime Research, 3 (57) 2008, vol.15, pp.38-41, 10.2478/v10012-007-0081-2.
• Trütnovsky K. (1964): Berührungsfreie Dichtungen, Grundlagen und Anwendungen der Strömung durch Spalte und Labyrinthe. - VDI-Verlag bh Düsseldorf, Verlag des Vereins Deutscher Ingenieure.
• Winowiecki M. (2009): The method of diagnosing labyrinth seals on machines flow (in Polish). - Dissertation, Poznan University of Technology, Poznań 2009.