Methods of the Rational Choice of a Labyrinth Seal Design for Gas Pumping Unit

Boutarfaïa, Ahmed; Kopey, B. V.; Abdelbaki, Noureddine

doi:10.5755/j01.mech.19.1.3611

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Hiester [10] summarized the seal convection heat transfer characterization where heat transfer coefficients are calculated with and without viscous heating. The previous studies were very helpful to determine methods of the rational choice of a labyrinth seal design for gas pumping units by Bellaouar et al [11] and to investigate new designs and geometries as the trapezoidal teeth labyrinth seal by Abdous and Zirak [12].…”

Section: Introductionmentioning

confidence: 99%

Fluid Thermal Effect on Non-contacting Labyrinth Seal of 20 MW Steam Turbine

Mammar

Yahiaoui

Ladjedel

et al. 2019

Period. Polytech. Mech. Eng.

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This paper is divided into two parts; the first describes a CFD analysis of a gland packing labyrinth seals in 20 MW steam turbine in LNG plant using ANSYS CFX code as an isothermal simulation in fluid domain. The results of two turbulence models k-ε and k-ω SST are compared and validated against experimental data. It is shown that the labyrinth seal leakage is proportional to the clearance cube so any variation in clearance can have a significant impact on the steam leakage. This clearance between the shaft and the labyrinth seal vary as a function of operating temperature due to the different rates of thermal expansion of the materials for these two components. Likewise the fluid temperature has a direct effect on fluid dynamic behavior. For that; the second part of the paper investigates the effect of fluid thermal conditions of the labyrinth seal via the heat transfer and Nusselt number variation in the stator and the rotor, for different cases of inlet temperature (400 °C, 200 °C, 100 °C, 50 °C) and pressure ratio (2.5, 4.5, 6.5) for an ideal gas. Also it is important to know the temperature distribution across tooth and cavities of the labyrinth seal, and finally the Influence of Inlet total temperature on fluid pressure drop in the labyrinth seal will be treated for improving and readjusting the steam turbine sealing system.

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Section: Introductionmentioning

confidence: 99%

Fluid Thermal Effect on Non-contacting Labyrinth Seal of 20 MW Steam Turbine

Mammar

Yahiaoui

Ladjedel

et al. 2019

Period. Polytech. Mech. Eng.

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show abstract

“…Labyrinth seals are widely employed in industry, with several layouts being studied [HESLER, 2005]. However, the optimization of these shapes is underexploited in literature, with works limited to parametric, shape optimization and genetic algorithms [BELLAOUAR;KOPEY;ABDELBAKI, 2013;SCHRAMM et al, 2004;WRÓBLEWSKI et al, 2010].…”

Section: Modeling and Optimization Of Labyrinth Sealsmentioning

confidence: 99%

Topology optimization of fluid diodes based on integer linear programming.

Souza¹

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“…Bellaouar, Kopey, and Abdelbaki [17] performed a similar optimization of annular labyrinth seal tooth geometry using the multivariate Gauss-Seidel iteration method. The five parameterization factors under investigation include the seal tooth front and rear angles, and the rounding radii on each side of the base and tip of the seal tooth.…”

Section: Prior Workmentioning

confidence: 99%

Optimization of a Balance Drum Labyrinth Seal to Minimize Leakage

Morgan¹

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Methods of the Rational Choice of a Labyrinth Seal Design for Gas Pumping Unit

Cited by 6 publications

References 3 publications

Fluid Thermal Effect on Non-contacting Labyrinth Seal of 20 MW Steam Turbine

Fluid Thermal Effect on Non-contacting Labyrinth Seal of 20 MW Steam Turbine

Topology optimization of fluid diodes based on integer linear programming.

Optimization of a Balance Drum Labyrinth Seal to Minimize Leakage

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