Determination of heat transfer process in vertical cable tunnels of nuclear power plants under real fire conditions

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.289291

Keywords:

full-scale fire tests, nuclear power plant, vertical cable tunnel, fire temperature regime

Abstract

The object of the study was heat and mass transfer processes occurring in vertical cable tunnels. The problem to be solved was the definition of process mechanisms in the inner space of the tunnel. For this, field tests were conducted, mathematical models were created, and computational experiments were conducted to establish specific parameters that affect the temperature regime of a fire in a vertical cable tunnel of a nuclear power plant. The dynamics of temperature changes with known geometric parameters and fire load were determined, and the adequacy of mathematical models built in the Fire Dynamics Simulator software was investigated and computational experiments were carried out. It has been proven that they consist in determining the temperature regime in a vertical cable tunnel of a nuclear power plant with known technical and geometric parameters. Such studies have practical applications in the field of safety of nuclear power plants and the development of new technologies in this field. An important conclusion of these studies is the possibility of determining the fire resistance of building structures of vertical cable tunnels of nuclear power plants with the selection of the most severe temperature regime, according to the conducted field test. This means that research results can be used in practice in designing and evaluating the safety of such objects.

The conducted research established that the temperature in the inner space of the tunnel can reach values from 1200 to 1400 ℃. The following factors influence the maximum temperature value and the maximum time to reach the maximum temperature in the fire cell: fire load, height and area of the tunnel. With a lower fire load, the maximum temperature in the vertical cable tunnel of the nuclear power plant was 75 % lower. Therefore, the results of these studies have a direct practical application in the field of safety of nuclear power plants and can be used to improve and develop new technologies in this field

Author Biographies

Serhii Troshkin, GU DSES of Ukraine in Zaporizhzhia Region

Head of the Guard 9-DPRCH 3-DPRZ

Oleh Kulitsa, Cherkasy Institute of Fire Safety named after Chornobyl Heroes of the National University of Civil Defence of Ukraine

PhD, Associate Professor

Department of Safety of Construction Facilities and Labor Protection

Serhii Pozdieiev, Institute of Public Administration and Research in Civil Protection

Doctor of Technical Sciences, Professor, Chief Researcher

Research and Testing Center

Tetiana Kostenko, Cherkasy Institute of Fire Safety named after Chornobyl Heroes of the National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor

Department of Safety of Construction Facilities and Labor Protection

Oleh Zemlianskyi, Cherkasy Institute of Fire Safety named after Chornobyl Heroes of the National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Associate Professor

Department of Automatic Safety Systems and Electrical Installations

Nataliia Zaika, Cherkasy Institute of Fire Safety named after Chornobyl Heroes of the National University of Civil Defence of Ukraine

Head of Laboratory

Department of Automatic Safety Systems and Electrical Installations

References

  1. International Atomic Energy Agency. Fire Safety in the Operation of Nuclear Power Plants, IAEA Safety Standards Series No. NS-G-2.1, IAEA (2000). Vienna. Available at: https://www.iaea.org/publications/6018/fire-safety-in-the-operation-of-nuclear-power-plants
  2. UNE EN 1991-1-2:2019. Eurocode 1: Actions on structures - Part 1-2: General actions - Actions on structures exposed to fire. Available at: https://www.en-standard.eu/une-en-1991-1-2-2019-eurocode-1-actions-on-structures-part-1-2-general-actions-actions-on-structures-exposed-to-fire/?gclid=EAIaIQobChMI7PTbgLL_gQMVRFuRBR08ewG3EAAYASAAEgKBcfD_BwE
  3. EN 1992-1-2 (2004) (English): Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design. Available at: https://www.phd.eng.br/wp-content/uploads/2015/12/en.1992.1.2.2004.pdf
  4. VII.4 Fire resistance of structures. Available at: https://tunnelsmanual.piarc.org/sites/tunnels-manual/files/public/wysiwyg/import/Chapters%20PIARC%20reports/1999%2005.05.B%20Chap%207.4%20EN.pdf
  5. Kovalyshyn, V. V. (2013). Perevirka na adekvatnist modeliuvannia protsesiv rozvytku i hasinnia pozhezh v kabelnykh tuneliakh (v obmezhenykh obiemakh). Naukovyi visnyk Ukrainskoho naukovo-doslidnoho instytutu pozhezhnoi bezpeky, 1 (27), 38–44.
  6. Ji, J., Bi, Y., Venkatasubbaiah, K., Li, K. (2016). Influence of aspect ratio of tunnel on smoke temperature distribution under ceiling in near field of fire source. Applied Thermal Engineering, 106, 1094–1102. doi: https://doi.org/10.1016/j.applthermaleng.2016.06.086
  7. Tian, X., Zhong, M., Shi, C., Zhang, P., Liu, C. (2017). Full-scale tunnel fire experimental study of fire-induced smoke temperature profiles with methanol-gasoline blends. Applied Thermal Engineering, 116, 233–243. doi: https://doi.org/10.1016/j.applthermaleng.2017.01.099
  8. Modic, J. (2003). Fire simulation in road tunnels. Tunnelling and Underground Space Technology, 18 (5), 525–530. doi: https://doi.org/10.1016/s0886-7798(03)00069-5
  9. Vaari, J. et al. (2012). Numerical simulations on the performance of waterbased fire suppressions systems. VTT Technology, 54. Available at: https://publications.vtt.fi/pdf/technology/2012/T54.pdf
  10. Sun, J., Fang, Z., Tang, Z., Beji, T., Merci, B. (2016). Experimental study of the effectiveness of a water system in blocking fire-induced smoke and heat in reduced-scale tunnel tests. Tunnelling and Underground Space Technology, 56, 34–44. doi: https://doi.org/10.1016/j.tust.2016.02.005
  11. Zhang, P., Tang, X., Tian, X., Liu, C., Zhong, M. (2016). Experimental study on the interaction between fire and water mist in long and narrow spaces. Applied Thermal Engineering, 94, 706–714. doi: https://doi.org/10.1016/j.applthermaleng.2015.10.110
  12. Troshkin, S. E., Sidney, S. A., Tischenko, E. A., Nekora, O. V. (2015). Issledovanie adekvatnosti rezul'tatov matematicheskogo modelirovaniya dinamiki pozhara v pomeschenii s pomosch'yu programmnogo kompleksa FDS. Pozharnaya bezopasnost': teoriya i praktika, 20, 104–109.
  13. Forney, G. P. (2007). User‘s Guide for Smokeview Version 5-A Tool for Visualizing Fire Dynamics Simulation Data. NIST Special Publication 1017-1. Available at: https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.1017-1.pdf
  14. Yelahin, H. I., Yelahin, H. I., Shkarabura, M. H., Kryshtal, M. A., Tyshchenko, O. M. (2013). Osnovy teoriyi rozvytku i prypynennia horinnia. Cherkasy: Akademiya pozhezhnoi bezpeky imeni Heroiv Chornobylia, 460.
  15. Nuianzin, O. M., Nekora, O. V., Pozdieiev, S. V. et al. (2019). Metody matematychnoho modeliuvannia teplovykh protsesiv pry vyprobuvanniakh na vohnestiykist zalizobetonnykh budivelnykh konstruktsiy. Cherkasy: ChIPB im. Heroiv Chornobylia NUTsZ Ukrainy, 120.
  16. Kaptsov, I. I. et al. (2009). Metodychni vkazivky do naukovo-doslidnytskoi praktyky z dystsypliny «Orhanizatsiya naukovykh doslidzhen» (Statystychni metody. Analiz ta oformlennia naukovykh doslidzhen). Kharkiv: KhNAMH, 59.
Determination of heat transfer process in vertical cable tunnels of nuclear power plants under real fire conditions

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Published

2023-10-31

How to Cite

Troshkin, S., Kulitsa, O., Pozdieiev, S., Kostenko, T., Zemlianskyi, O., & Zaika, N. (2023). Determination of heat transfer process in vertical cable tunnels of nuclear power plants under real fire conditions. Eastern-European Journal of Enterprise Technologies, 5(10 (125), 34–42. https://doi.org/10.15587/1729-4061.2023.289291

Issue

Vol. 5 No. 10 (125) (2023): Ecology

Section

Ecology

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Copyright (c) 2023 Serhii Troshkin, Oleh Kulitsa, Serhii Pozdieiev, Tetiana Kostenko, Oleh Zemlianskyi, Nataliia Zaika

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