Results 1 to 10 of about 116 (106)
International Journal of Rotating Machinery, 2002 The proven technology of brush seals has been extended to the mitigation of problems arising from friction and wear at the bristle-rotor interface at high surface speeds. In prototype testing, the brush is mounted on, and free to rotate with the shaft, thus providing a compliant primary seal.
Lattime S. B. +4 more
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Wear and Leakage Behaviors of Brush Seal Considering Eccentricity and Radial Deformation
Energies, 2023 Brush seals can improve engine performance by reducing leakage. Wear models of brush seals provide methods to predict wear and leakage. However, rotor eccentricity, radial deformation, and hysteresis effect of bristles are not considered systematically ...
Yiren Xu +4 more
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Brush seal contact force theory and correlation with tests
Alexandria Engineering Journal, 2022 Brush seals are leakage performance systems that are operating against turbine shafts and bucket tips. Flexible bristle structure can compensate the rotor interference during transients, which enables closer clearance control in turbine and turbo-engine ...
Ertuğrul Tolga Duran
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Effects of Front Plate Geometry on Brush Seal in Highly Swirling Environments of Gas Turbine
Energies, 2021 Advanced brush seal technology has a significant impact on the performance and efficiency of gas turbine engines. However, in highly inlet swirling environments, the bristles of a brush seal tend to circumferentially slip, which may lead to aerodynamic ...
Yuxin Liu +4 more
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Analysis of Heat Flux Distribution during Brush Seal Rubbing Using CFD with Porous Media Approach
Energies, 2021 This paper discusses the question of heat flux distribution between bristle package and rotor during a rubbing event. A three-dimensional Computational Fluid Dynamics (3D CFD) model of the brush seal test rig installed at the Institute of Thermal ...
Manuel Hildebrandt +2 more
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Theoretical and numerical investigation into brush seal hysteresis without pressure differential
Advanced Composites Letters, 2019 Brush seal is a novel type contact seal, and it is well-known due to its excellent performance. However, there are many intrinsic drawbacks, such as hysteresis, which need to be solved.
Yuchi Kang +4 more
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Frontiers in Energy Research, 2022 When subject to highly swirling inlet flow, the bristles on the upstream face of a brush seal in gas turbine engines tend to slip circumferentially, which may lead to aeromechanical instability and seal failure. In this article, a new design of the front
Yuxin Liu +5 more
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Analysis of a tunnel failure caused by leakage of the shield tail seal system
Underground Space, 2020 This paper presents an analysis of a tunnel failure accident during shield tunnel construction on Foshan Metro Line 2 in China. The failure is caused by the leakage of the multilayer seal system, which consists of several brush seals at the tail of the ...
Chao Yu +4 more
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Energies, 2023 A brush seal is a type of contact sealing technology that generates a great amount of heat during operations. The heat can affect the seal’s performance and lifespan.
Xiaolei Song +4 more
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Machines, 2022 In this study, to improve the accuracy of the brush seal heat transfer model, based on the finite volume method (FVM) coupled with the three-dimensional Reynold-averaged Naviers-Stokes equations (RANS) equations of the Local temperature non-equilibrium ...
Jiahao Zhang, Meihong Liu, Neng Peng
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