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Abstract

For the optimization of power generation through the stable operation of geothermal power plant, it is significant to secure the flow channel in pipe conduits. The major barriers to this process include the scale formation and the pipe corrosion or erosion which would break down the pipe lines. Although it has been confirmed that both phenomena develop locally due to hydrodynamic effects, various simulations or experiments have not been conducted based on hydrodynamics and no unified method considering the influence of fluid flow has been established at present.

In this research, we applied a prediction formula of silica deposition rate computed by particle analyses on an nm-µm scale and an empirical formula obtained from corrosion experiment taking shear stress into account to the lattice Boltzmann method. We described complicated shape of piping wall with gradual shift between solid and fluid cells using the proposed scheme. Our results are consistent with actual data and effectiveness and versatility of the lattice Boltzmann method are suggested.

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/content/papers/10.3997/2352-8265.20140237
2019-05-26
2024-04-18
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References

  1. Mizushima, A., Mikada, H. and Takekawa, J.
    , 2016, The role of physical and chemical processes of silica scale growth in geothermal wells, Recent Advances in Exploration Geophysics (RAEG 2016), doi: 10.3997/2352‑8265.20140209.
    https://doi.org/10.3997/2352-8265.20140209 [Google Scholar]
  2. Iwata, M., Mikada, H. and Takekawa, J.
    , 2018, Visualization of local scale deposition in pipe conduit due to fluid resources production, 80th EAGE Conference and Exhibition2018, doi:10.3997/2214‑4609.201801522.
    https://doi.org/10.3997/2214-4609.201801522 [Google Scholar]
  3. Brophy, J. and Garner, C.
    , 1988, Tests of high current hollow cathodes for ion engines, In 24th Joint Propulsion Conference, 2913.
    [Google Scholar]
  4. Iwata, M., Mikada, H. and Takekawa, J.
    , 2017, Quantitative simulation of silica scale deposition from physical kinematics perspectives, Recent Advances in Exploration Geophysics (RAEG 2017), doi 10.3997/2352‑8265.20140220.
    https://doi.org/10.3997/2352-8265.20140220
  5. Utanohara, Y., Nagaya, Y., Nakamura, A., and Murase, M.
    , 2012, Influence of local flow field on flow accelerated corrosion downstream from an orifice, Journal of Power and Energy Systems, 6(1), 18–33.
    [Google Scholar]
  6. Kang, Q., Zhang, D., Lichtner, P. C. and Tsimpanogiannis, I. N.
    , 2004, Lattice Boltzmann model for crystal growth from supersaturated solution, Geophysical Research Letters, 31(21).
    [Google Scholar]
  7. Lu, G., DePaolo, D. J., Kang, Q. and Zhang, D.
    , 2009, Lattice Boltzmann simulation of snow crystal growth in clouds, Journal of Geophysical Research: Atmospheres (1984–2012), 114(D7).
    [Google Scholar]
  8. Mercado, M., F.Bermejo, R.Hurtado, B.Terrazas, and L.Hernandez
    , 1989, Scale incidence of production pipes of Cerro Prieto geothermal wells, Geothermics, 18, 225–232.
    [Google Scholar]
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