Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal

Juan Carlos Garcia; Ricardo Reyes Hernández; Oscar De Santiago Duran; José Alfredo Rodríguez Ramirez; Fernando Sierra Espinosa; Miguel Basurto Pensado

doi:doi:10.11648/j.ajae.20170405.11

Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal

Juan Carlos Garcia, Ricardo Reyes Hernández, Oscar De Santiago Duran, José Alfredo Rodríguez Ramirez, Fernando Sierra Espinosa, Miguel Basurto Pensado

Published in American Journal of Aerospace Engineering (Volume 4, Issue 5)

Received: 13 November 2017 Accepted: 1 December 2017 Published: 7 February 2018

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Abstract

Steam turbines, like other turbo-engines, require sealing elements, which prevent the working fluid escape outside of the turbine, causing power losses and environmental contamination. In this work the Flow Field in Spiral Grooves of Steam Turbine Dry Seals was determined using Computational Fluid Dynamics (CFD). The dry seal considered in this study has spiral grooves on the moving face. The flow field was computed for two different spiral groove inlet angle configurations (13 and 15 degrees). Additionally the opening force caused by the effect of the interaction of the rotational speed of the grooves and flow field was determined. Among the results it was found that the opening force generated on the seal walls is proportional to the opening angle of the spiral grooves. The spiral groove inlet angle of 15° generated major opening force.

Published in	American Journal of Aerospace Engineering (Volume 4, Issue 5)
DOI	10.11648/j.ajae.20170405.11
Page(s)	54-58
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Flow Field, Spiral Grooves, Dry Seal, Turbine, Computational Fluid Dynamics

References

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[2]	S. Li, Q. Zhu, J. Cai, Q. Zhang, and Z. Jin, “Regulation Performance of Regulatable Dry Gas Seal,” vol. 11, pp. 18–24, 2016.
[3]	B. Wang, H. Zhang, and H. Cao, “Flow dynamics of a spiral-groove dry-gas seal,” Chinese J. Mech. Eng., vol. 26, no. 1, pp. 78–84, Feb. 2013.
[4]	Y. Li, P. Y. Song, and H. J. Xu, “Performance Analyses of the Spiral Groove Dry Gas Seal with Inner Annular Groove,” Appl. Mech. Mater., vol. 420, pp. 51–55, Sep. 2013.
[5]	J. Xu, X. Peng, S. Bai, X. Meng, and J. Li, “Experiment on wear behavior of high pressure gas seal faces,” Chinese J. Mech. Eng., vol. 27, no. 6, pp. 1287–1293, Oct. 2014.
[6]	M. Ochiai, H. Sasaki, Y. Sunami, and H. Hashimoto, “Topological Optimization of Dry Gas Seals for Improving Seal Characteristics,” pp. 196–200, 2014.
[7]	F. B. Ma, P. Y. Song, and J. Gao, “Numerical Analysis of Radial Groove Gas-Lubricated Face Seals at Slow Speed Condition,” Adv. Mater. Res., vol. 468–471, pp. 2304–2309, Feb. 2012.
[8]	C. Xu, W. F. Huang, and X. F. Liu, “Tracking Property Analysis of a Dry Gas Seal Operating in Low Pressure Condition,” Appl. Mech. Mater., vol. 532, pp. 367–373, Feb. 2014.
[9]	W. F. Xu, X. H. Li, and G. Ma, “A Method of Dual Number for the Aerodynamic Property Analysis of Gas-Lubricated Mechanism: Self-Pressurizing Thrust Bearings and Non-Contacting Face Seals,” Adv. Mater. Res., vol. 311–313, pp. 360–369, Aug. 2011.
[10]	F. Sealing, “An Improved Design of Spiral Groove Mechanical Seal,” vol. 15, no. 4, pp. 499–506, 2007.
[11]	J. Bin Hu, W. J. Tao, Y. M. Zhao, and C. Wei, “Numerical Analysis of General Groove Geometry for Dry Gas Seals,” Appl. Mech. Mater., vol. 457–458, pp. 544–551, Oct. 2013.
[12]	I. Shahin, M. Gadala, M. Alqaradawi, and O. Badr, “Centrifugal Compressor Spiral Dry Gas Seal Simulation Working at Reverse Rotation,” Procedia Eng., vol. 68, no. July 2016, pp. 285–292, 2013.
[13]	I. Shahin, “Dry Gas Seal Simulation with Different Spiral Tapered Grooves Dry Gas Seal Simulation with Different Spiral Tapered Grooves,” no. January 2014, 2016.
[14]	I. Shahin, M. Gadala, M. Alqaradawi, and O. Badr, “Three Dimensional Computational Study for Spiral Dry Gas Seal with Constant Groove Depth and Different Tapered Grooves,” Procedia Eng., vol. 68, no. July 2016, pp. 205–212, 2013.
[15]	X. P. Hu and P. Y. Song, “Theoretic Analysis of the Effect of Real Gas on the Performance of the T-Groove and Radial Groove Dry Gas Seal,” Appl. Mech. Mater., vol. 271–272, pp. 1218–1223, Dec. 2012.

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APA Style

Juan Carlos Garcia, Ricardo Reyes Hernández, Oscar De Santiago Duran, José Alfredo Rodríguez Ramirez, Fernando Sierra Espinosa, et al. (2018). Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. American Journal of Aerospace Engineering, 4(5), 54-58. https://doi.org/10.11648/j.ajae.20170405.11

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ACS Style

Juan Carlos Garcia; Ricardo Reyes Hernández; Oscar De Santiago Duran; José Alfredo Rodríguez Ramirez; Fernando Sierra Espinosa, et al. Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. Am. J. Aerosp. Eng. 2018, 4(5), 54-58. doi: 10.11648/j.ajae.20170405.11

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AMA Style

Juan Carlos Garcia, Ricardo Reyes Hernández, Oscar De Santiago Duran, José Alfredo Rodríguez Ramirez, Fernando Sierra Espinosa, et al. Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. Am J Aerosp Eng. 2018;4(5):54-58. doi: 10.11648/j.ajae.20170405.11

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@article{10.11648/j.ajae.20170405.11,
  author = {Juan Carlos Garcia and Ricardo Reyes Hernández and Oscar De Santiago Duran and José Alfredo Rodríguez Ramirez and Fernando Sierra Espinosa and Miguel Basurto Pensado},
  title = {Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal},
  journal = {American Journal of Aerospace Engineering},
  volume = {4},
  number = {5},
  pages = {54-58},
  doi = {10.11648/j.ajae.20170405.11},
  url = {https://doi.org/10.11648/j.ajae.20170405.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajae.20170405.11},
  abstract = {Steam turbines, like other turbo-engines, require sealing elements, which prevent the working fluid escape outside of the turbine, causing power losses and environmental contamination. In this work the Flow Field in Spiral Grooves of Steam Turbine Dry Seals was determined using Computational Fluid Dynamics (CFD). The dry seal considered in this study has spiral grooves on the moving face. The flow field was computed for two different spiral groove inlet angle configurations (13 and 15 degrees). Additionally the opening force caused by the effect of the interaction of the rotational speed of the grooves and flow field was determined. Among the results it was found that the opening force generated on the seal walls is proportional to the opening angle of the spiral grooves. The spiral groove inlet angle of 15° generated major opening force.},
 year = {2018}
}

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TY  - JOUR
T1  - Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal
AU  - Juan Carlos Garcia
AU  - Ricardo Reyes Hernández
AU  - Oscar De Santiago Duran
AU  - José Alfredo Rodríguez Ramirez
AU  - Fernando Sierra Espinosa
AU  - Miguel Basurto Pensado
Y1  - 2018/02/07
PY  - 2018
N1  - https://doi.org/10.11648/j.ajae.20170405.11
DO  - 10.11648/j.ajae.20170405.11
T2  - American Journal of Aerospace Engineering
JF  - American Journal of Aerospace Engineering
JO  - American Journal of Aerospace Engineering
SP  - 54
EP  - 58
PB  - Science Publishing Group
SN  - 2376-4821
UR  - https://doi.org/10.11648/j.ajae.20170405.11
AB  - Steam turbines, like other turbo-engines, require sealing elements, which prevent the working fluid escape outside of the turbine, causing power losses and environmental contamination. In this work the Flow Field in Spiral Grooves of Steam Turbine Dry Seals was determined using Computational Fluid Dynamics (CFD). The dry seal considered in this study has spiral grooves on the moving face. The flow field was computed for two different spiral groove inlet angle configurations (13 and 15 degrees). Additionally the opening force caused by the effect of the interaction of the rotational speed of the grooves and flow field was determined. Among the results it was found that the opening force generated on the seal walls is proportional to the opening angle of the spiral grooves. The spiral groove inlet angle of 15° generated major opening force.
VL  - 4
IS  - 5
ER  -

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Author Information

Juan Carlos Garcia

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico
Ricardo Reyes Hernández

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico
Oscar De Santiago Duran

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico
José Alfredo Rodríguez Ramirez

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico
Fernando Sierra Espinosa

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico
Miguel Basurto Pensado

Faculty of Chemical Science and Engineering, Center for Engineering and Applied Sciences, Autonomous State University of Morelos, Morelos, Mexico

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APA Style

Juan Carlos Garcia, Ricardo Reyes Hernández, Oscar De Santiago Duran, José Alfredo Rodríguez Ramirez, Fernando Sierra Espinosa, et al. (2018). Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. American Journal of Aerospace Engineering, 4(5), 54-58. https://doi.org/10.11648/j.ajae.20170405.11

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ACS Style

Juan Carlos Garcia; Ricardo Reyes Hernández; Oscar De Santiago Duran; José Alfredo Rodríguez Ramirez; Fernando Sierra Espinosa, et al. Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. Am. J. Aerosp. Eng. 2018, 4(5), 54-58. doi: 10.11648/j.ajae.20170405.11

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AMA Style

Juan Carlos Garcia, Ricardo Reyes Hernández, Oscar De Santiago Duran, José Alfredo Rodríguez Ramirez, Fernando Sierra Espinosa, et al. Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal. Am J Aerosp Eng. 2018;4(5):54-58. doi: 10.11648/j.ajae.20170405.11

Copy | Download

@article{10.11648/j.ajae.20170405.11,
  author = {Juan Carlos Garcia and Ricardo Reyes Hernández and Oscar De Santiago Duran and José Alfredo Rodríguez Ramirez and Fernando Sierra Espinosa and Miguel Basurto Pensado},
  title = {Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal},
  journal = {American Journal of Aerospace Engineering},
  volume = {4},
  number = {5},
  pages = {54-58},
  doi = {10.11648/j.ajae.20170405.11},
  url = {https://doi.org/10.11648/j.ajae.20170405.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajae.20170405.11},
  abstract = {Steam turbines, like other turbo-engines, require sealing elements, which prevent the working fluid escape outside of the turbine, causing power losses and environmental contamination. In this work the Flow Field in Spiral Grooves of Steam Turbine Dry Seals was determined using Computational Fluid Dynamics (CFD). The dry seal considered in this study has spiral grooves on the moving face. The flow field was computed for two different spiral groove inlet angle configurations (13 and 15 degrees). Additionally the opening force caused by the effect of the interaction of the rotational speed of the grooves and flow field was determined. Among the results it was found that the opening force generated on the seal walls is proportional to the opening angle of the spiral grooves. The spiral groove inlet angle of 15° generated major opening force.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Numerical Computation of Flow Field in the Spiral Grooves of Steam Turbine Dry Seal
AU  - Juan Carlos Garcia
AU  - Ricardo Reyes Hernández
AU  - Oscar De Santiago Duran
AU  - José Alfredo Rodríguez Ramirez
AU  - Fernando Sierra Espinosa
AU  - Miguel Basurto Pensado
Y1  - 2018/02/07
PY  - 2018
N1  - https://doi.org/10.11648/j.ajae.20170405.11
DO  - 10.11648/j.ajae.20170405.11
T2  - American Journal of Aerospace Engineering
JF  - American Journal of Aerospace Engineering
JO  - American Journal of Aerospace Engineering
SP  - 54
EP  - 58
PB  - Science Publishing Group
SN  - 2376-4821
UR  - https://doi.org/10.11648/j.ajae.20170405.11
AB  - Steam turbines, like other turbo-engines, require sealing elements, which prevent the working fluid escape outside of the turbine, causing power losses and environmental contamination. In this work the Flow Field in Spiral Grooves of Steam Turbine Dry Seals was determined using Computational Fluid Dynamics (CFD). The dry seal considered in this study has spiral grooves on the moving face. The flow field was computed for two different spiral groove inlet angle configurations (13 and 15 degrees). Additionally the opening force caused by the effect of the interaction of the rotational speed of the grooves and flow field was determined. Among the results it was found that the opening force generated on the seal walls is proportional to the opening angle of the spiral grooves. The spiral groove inlet angle of 15° generated major opening force.
VL  - 4
IS  - 5
ER  -

Copy | Download