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Experiments in Fluids

, 61:37 | Cite as

Measurement of particle decontamination behavior using interferometer

  • Kota FujiwaraEmail author
  • Yuki Nakamura
  • Wataru Kikuchi
  • Akiko Kaneko
  • Yutaka Abe
Research Article
  • 32 Downloads

Abstract

Pool scrubbing is an important factor in the dischargement process of fission products during severe accidents in nuclear power plants. Therefore, a reliable model is required to analyze particle decontamination efficiency by pool scrubbing. However, the fundamental process of particle decontamination behavior during pool scrubbing remains unknown. In an experiment, an interferometer was built to measure particle decontamination behavior from interference fringe. From the interferometer, a bright field image and interference image around the bubble were obtained from high-speed cameras. However, it was difficult to apply existing interference fringe data processing method against our images, since the method requires to adjust the area of the phase extraction manually for each image. It was unrealistic to adjust the range of the extraction area manually for each image from high-speed camera measurement. As to overcome this problem, we developed a new data processing method to separate the phase information from qualitative criteria using data clustering, called the Gaussian mixture model method. From the data processing results, we measured the detailed particle decontamination behavior around a single bubble. From a series of experiments, we discovered that the particle distribution around the bubble tends to be unsteady, although existing models predict the decontamination phenomena to be steady. The results suggest that bubble deformation, which is not considered in existing pool scrubbing models, may be a dominant factor in particle decontamination. We also confirmed that the particle distribution in the lower part of the bubble is strongly affected by gravity.

Graphic abstract

Notes

Acknowledgements

This work was supported by the Nuclear Regulation Authority (NRA), Japan. The authors are thankful for their great support and discussions. The authors also thank Mr. Takao Maki, Mr. Kenji Kobayashi and Mr. Rintaro Fujikawa for their invaluable assistance.

References

  1. Abe Y, Fujiwara K, Saito S, Yuasa T, Kaneko A (2018) Bubble dynamics with aerosol during pool scrubbing. Nucl Eng Des 337:96–107.  https://doi.org/10.1016/j.nucengdes.2018.06.017 CrossRefGoogle Scholar
  2. Allelein HJ, Auvinen A, Ball J, Güntay S, Herranz LE, Hidaka A, Jones AV, Kissane M, Powers D, Weber G (2009) State-of-the-art report on nuclear aerosols. In: Nuclear Energy Agency Committee on the safety of nuclear installationsGoogle Scholar
  3. Chino M, Nakayama H, Nagai H, Terada H, Katata G, Yamazawa H (2011) Preliminary estimation of release amounts of 131I and 137Cs accidentally discharged from the Fukushima Daiichi nuclear power plant into the atmosphere. J Nucl Sci Technol 48(7):1129–1134.  https://doi.org/10.1080/18811248.2011.9711799 CrossRefGoogle Scholar
  4. Dehbi A, Suckow D, Guentay S (2001) Aerosol retention in low-subcooling pools under realistic accident conditions. Nucl Eng Des 203(2–3):229–241.  https://doi.org/10.1016/S0029-5493(00)00343-5 CrossRefGoogle Scholar
  5. Fujiwara K, Kikuchi W, Nakamura Y, Yuasa T, Saito S, Kaneko A, Abe Y (2019) Experimental study of single-bubble behavior containing aerosol during pool scrubbing. Nucl Eng Des 348:159–168.  https://doi.org/10.1016/j.nucengdes.2019.04.015 CrossRefGoogle Scholar
  6. Goodman JW (2005) Introduction to Fourier optics. Roberts and Company Publishers, EnglewoodGoogle Scholar
  7. Hashimoto K, Soa K, Uno S, Nakatani H, Tateoka H (1988) Effect of pool scrubbing of insoluble aerosol in two phase flow in a pipe. In: Severe accidents in nuclear power plants. International Atomic Energy Agency (IAEA): IAEAGoogle Scholar
  8. Herranz LE, Peyrés V, Polo J, Escudero MJ, Espigares MM, López-Jiménez J (1997) Experimental and analytical study on pool scrubbing under jet injection regime. Nucl Technol 120(2):95–109.  https://doi.org/10.13182/NT97-A35419 CrossRefGoogle Scholar
  9. Kreis T (1986) Digital holographic interference-phase measurement using the Fourier-transform method. JOSA A 3(6):847–855.  https://doi.org/10.1364/JOSAA.3.000847 CrossRefGoogle Scholar
  10. Marcos C, Moreno FJ, Melches S, Martin E, Lopez J (1994) Lace-Espana experimental programme on the retention of aerosols in water pools (No. CIEMAT-740). Centro de Investigaciones EnergeticasGoogle Scholar
  11. McCormack JD, Dickinson DR, Allemann RT (1989) Experimental results of ACE vent filtration. Pool Scrubber Tests AA1-AA4 and DOP1-DOP5. No. ACETR-A1Google Scholar
  12. Nishimura T, Hoshi H, Hotta A (2015) Current research and development activities on fission products and hydrogen risk after the accident at Fukushima Daiichi nuclear power station. Nucl Eng Technol 47(1):1–10.  https://doi.org/10.3389/fenrg.2019.00096 CrossRefGoogle Scholar
  13. Owczarski PC, Burk KW (1991) SPARC-90: A code for calculating fission product capture in suppression pools (No. NUREG/CR-5765; PNL-7723). Nuclear Regulatory Commission, Washington. Div. of Regulatory Applications; Pacific Northwest Lab., RichlandGoogle Scholar
  14. Ramsdale SA, Guentay S, Friederichs HG (1994) Bubble scrubbing algorithm BUSCA, Analysis of radionuclides scrubbing in water pools, model description and user manual for BUSCA June-91 version. SRD/N1496, PSI Bericht Nr. 95-05, GRS mbH Koeln Nr. 116Google Scholar
  15. Swiderska KM, Escudero BM, Marcos C, Martin EM, Lopez JJ (1995) State-of-the-art review on fission product aerosol pool scrubbing under severe accident conditions. Institute of Nuclear Chemistry and Technology annual report INIS-PL-0001Google Scholar
  16. Wassel AT, Farr Jr JL, Hoseyni MS (1985) SUPRA: A code for simulating removal of radionuclides by water pool under severe accident conditions. EPRI NP3886-CCMPGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2020

Authors and Affiliations

  1. 1.Graduate School of Systems and Information EngineeringUniversity of TsukubaTsukubaJapan
  2. 2.Faculty of Engineering, Information and SystemsUniversity of TsukubaTsukubaJapan

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