Instability of multistage compressor K1501 [PDF]
The K1501 compressor, driven by a steam turbine, is used to transport synthetic gas in fertilizer plants of 1000 tons daily production. The turbo-compressor set, which had been in operation since 1982, vibrated rather intensely, and its maximum load was ...
Zhou, Ren-Mu
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Rotordynamic coefficients for labyrinth seals calculated by means of a finite difference technique [PDF]
The compressible, turbulent, time dependent and three dimensional flow in a labyrinth seal can be described by the Navier-Stokes equations in conjunction with a turbulence model. Additionally, equations for mass and energy conservation and an equation of
Nordmann, R., Weiser, P.
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Theoretical approach to labyrinth seal forces - cross-coupled stiffness of a straight-through labyrinth seal [PDF]
Two kinds of three dimensional flows in a labyrinth seal, a jet flow and a core flow, are considered and theoretical equations are set up concerning the motion of each flow.
Abe, T., Fujikawa, T., Kameoka, T.
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Damping device for a stationary labyrinth seal [PDF]
, 2010 A stationary labyrinth seal system includes a seal housing having an annular cavity, a plurality of damping devices, and a retaining ring. The damping devices are positioned within the annular cavity and are maintained within the annular cavity by the ...
Davis, Gary A. +4 more
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Leakage and rotordynamic coefficients of labyrinth-scallop seals
Проблеми трибологіїReducing leakages and improving the rotor-dynamic damping characteristics of annular seals is an essential problem of sealing technology. A whole range of damping seals are used to seal the shafts of turbomachines, such as honeycomb, hole pattern, pocket,
V. Izemenko, A. Zahorulko, Yu. Zahorulko
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Determination by CFD methods of dynamic forces generated by labyrinth seals in high performance turbocompressors and comparison with bulk flow models and experimental results [PDF]
The subject analyzed in this thesis developed for the Master degree in Mechanical Engineering, rotordynamic field, was about the investigation of rotordynamic coefficients of labyrinth seals installe on turbomachinery (centrifugal compressor) by the use ...
RICCOMI, GIANLUCA
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An experimental technique for performing 3-D LDA measurements inside whirling annular seals [PDF]
During the last several years, the Fluid Mechanics Division of the Turbomachinery Laboratory at Texas A&M University has developed a rather unique facility with the experimental capability for measuring the flow field inside journal bearings, labyrinth ...
Deotte, Robert E., Jr. +4 more
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Flow in straight through labyrinth seal: a comparison of fluid structure interaction effects [PDF]
, 2016 A numerical study has been conducted to study the fluid structural interaction in a straight through labyrinth seal (half-model). The structural effect is identified and the fluid force is correlated with it which gives an estimate of the deformation ...
Abu, A. H. +5 more
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Damping seals for turbomachinery [PDF]
A rotor seal is proposed that restricts leakage like a labyrinth seal, but extends the stabilizing speed range beyond twice the first critical speed. The dynamic parameters were derived from bulk flow equations without requiring a dominant axial flow ...
Vonpragenau, G. L.
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Circumferential pressure distributions in a model labyrinth seal [PDF]
, 1982 A research program to isolate and study leakage flow through labyrinth glands was initiated. Circumferential pressure distributions were measured in the labyrinth glands with geometry appropriate to the high pressure labyrinths in large steam turbines ...
Brown, R. D., Leong, Y. M. M. S.
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