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2021 | OriginalPaper | Buchkapitel

Experimental Study of Temperature Effect on Labyrinth Seal Leakage and Vibration Characteristics of Rotor

verfasst von: Vivek V. Shet, A. S. Sekhar, B. V. S. S. S. Prasad

Erschienen in: Proceedings of the 6th National Symposium on Rotor Dynamics

Verlag: Springer Singapore

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Abstract

Labyrinth seals are the most widely used non-contact-type turbine seals. The main design concern is to prevent the seal rub with the stator in the range of operating conditions and to control the system rotordynamics. This work aims at experimentally evaluating the effect of thermal growth of labyrinth seal on the leakage flow rates and effect on vibration characteristics of the system. An experimental seal test rig for teeth on rotor (TOR)-type straight labyrinth seal with four flat tip teeth has been developed. Constant clearance between seal and stator is maintained and tested at different speeds and temperatures by varying the inlet air pressure. Leakage results are compared for the seal for the range of operating conditions and for a given seal radial clearance. In addition, vibration data are measured at various locations to understand the influence of seal on the vibration characteristics of the rotor system. It is seen that flow leakage rate and vibration of system are influenced by the pressure difference and the temperature.

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Literatur
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Zurück zum Zitat Subramanian S, Sekhar AS, Prasad B (2015) Influence of combined radial location and growth on the leakage performance of a rotating labyrinth gas turbine seal. J Mech Sci Tech 29(6):2535–2545 CrossRef Subramanian S, Sekhar AS, Prasad B (2015) Influence of combined radial location and growth on the leakage performance of a rotating labyrinth gas turbine seal. J Mech Sci Tech 29(6):2535–2545 CrossRef
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Zurück zum Zitat Childs DW, Scharrer JK (1988) Theory versus experiment for the rotodynamic coefficient of labyrinth gas seals: Part II—a comparison to experiment-1. J Vibr Acoust Stress Reliab Des 110:281–287 CrossRef Childs DW, Scharrer JK (1988) Theory versus experiment for the rotodynamic coefficient of labyrinth gas seals: Part II—a comparison to experiment-1. J Vibr Acoust Stress Reliab Des 110:281–287 CrossRef
Metadaten
Titel
Experimental Study of Temperature Effect on Labyrinth Seal Leakage and Vibration Characteristics of Rotor
verfasst von
Vivek V. Shet
A. S. Sekhar
B. V. S. S. S. Prasad
Copyright-Jahr
2021
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-5701-9_19

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