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Advances in Mechanical Engineering, 2020 The exact understanding of the dynamic characteristic of the seal is a crucial parameter for designing the system. This article presents an experiment that estimates the dynamic characteristics of a brush seal under a super-heated steam environment for a
Yunseok Ha +3 more
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Applied Sciences, 2023 In the paper, nonlinear vibration characteristics of a rotor system are investigated. Such a nonlinear rotor system is subjected to brush seal forces, which are obtained by integrating the bristle force along the entire ring.
Yingyong Zou +5 more
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Segmentation effects on brush seal leakage and rotordynamic coefficients
, 2015 This paper studies the effect of brush seal segmentation on the seal performance characteristics. A brush-labyrinth sealing configuration arranged of one brush seal downstream and two labyrinth fins upstream is studied experimentally and theoretically ...
Pugachev, A. O.;Gaszner, M.;Georgakis, C.;Cooper, P.
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Numerical Investigation on Windback Seals Used in Aero Engines
Aerospace, 2018 Seals are considered one of the most important flow elements in turbomachinery applications. The most traditional and widely known seal is the labyrinth seal but in recent years other types like the brush or carbon seals were introduced since they ...
Michael Flouros +3 more
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Experimental study and numerical analysis of vacuum thermal characteristics of brush DC motor
Energy Storage and Saving, 2023 Brush direct current (DC) motors have several qualities that make them very attractive for space flight applications. Considering the high reliability requirements of aerospace missions, the thermal characteristics and thermal failure of the brush DC ...
Tao Li +3 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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Bidirectional Brush Seals [PDF]
Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 1997 Presented is a study of the use of a set of I.D./O.D. bidirectional brush seals to reduce the leakage losses in a wave rotor. Relative to the baseline configuration, data indicate the use of brush seals enhanced wave rotor efficiency from 36 to 45 percent at low leakages (small rotor endwall gap spacings) and from 15 to 33 percent at high leakages ...
Robert C. Hendricks +3 more
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The Inter-Bristle Pressure Field in a Large-Scale Brush Seal [PDF]
, 2022 Brush seals promise improvements to the widely used labyrinth seal in regulating turbomachinery leakages. Enhanced resistance to the flow is provided by a static ring of densely packed fine wire bristles that are angled in the direction of rotation and ...
Crudgington, Peter +5 more
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Aerospace, 2018 Reducing losses in the secondary air system of gas and steam turbines can significantly increase the efficiency of such machines. Meanwhile, brush seals are a widely used alternative to labyrinth seals.
Manuel Hildebrandt +4 more
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Technology and equipment of preventing gas overrun in drilling operation of outburst coal seam
Meikuang Anquan, 2021 Aiming at the problem of gas gushing hole during the construction of through layer drilling(hydraulic punching), the factors that easily cause gas overrun in the working space during the hydraulic punching operation are analyzed and determined.
HAO Dian, LI Xuechen, WEI Peijin
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