Advanced contacting seals, such as leaf seals or brush seals, can offer reduced leakage during engine operation when compared to conventional labyrinth seals. The flexible elements of these seals provide better compliance with the rotor during flight maneuvers. The functionality and performance retention attributes of an engine-scale prototype leaf seal have been investigated on a seal test facility at Rolls-Royce that achieves engine-representative pressures and speeds and allows dynamic control of the seal position relative to the rotor, both concentric and eccentric. In this paper, the experimental setup and the test method are described in detail, including the quantification of the measurement uncertainty developed to ASME standard PTC 19.1. Experimental data are presented that show the variations in leakage and torque over typical variations of the test parameters. Insight is gained into the interactions between the operating pressure and speed and the concentric and eccentric movements imposed on the seal.
High-Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility
Derby DE24 8BJ, UK
University of Queensland,
Brisbane, QLD 4072, Australia
Derby DE24 8BJ, UK
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 7, 2015; final manuscript received December 11, 2015; published online March 15, 2016. Editor: David Wisler.
- Views Icon Views
- Share Icon Share
- Search Site
Pekris, M. J., Nasti, A., Jahn, I. H. J., and Franceschini, G. (March 15, 2016). "High-Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility." ASME. J. Eng. Gas Turbines Power. August 2016; 138(8): 082503. https://doi.org/10.1115/1.4032422
Download citation file: