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Non-Uniformity of the Indoor Radon Concentration under a Convective Mixing Mechanism

Author

Listed:
  • Sergey Spotar

    (School of Engineering, Nazarbayev University (NU), 53, Kabanbay Batyr Avenue, Astana 010000, Kazakhstan)

  • Nurlan Ibrayev

    (National Laboratory Astana, Private Institution (NLA, PI), Nazarbayev University, 53, Kabanbay Batyr Avenue, Astana 010000, Kazakhstan)

  • Aigerim Uyzbayeva

    (National Laboratory Astana, Private Institution (NLA, PI), Nazarbayev University, 53, Kabanbay Batyr Avenue, Astana 010000, Kazakhstan)

  • Jamil Atabayev

    (School of Engineering, Nazarbayev University (NU), 53, Kabanbay Batyr Avenue, Astana 010000, Kazakhstan)

Abstract

This paper focuses on the results of computational fluid dynamics (CFD) modeling of radon concentration distribution in living areas within residences. The COMSOL Multiphysics ® 5.3 software package has been employed for solving coupled momentum and species transport problems together with pseudo-reaction term modeling of the radon radioactive decay process. The reliability and verification of the simulation model was tested by comparing with available experimental data. The obtained results show the existence of stagnant zones where the concentration of radon is substantially higher than the average values. The impact of factors such as wind velocity, air tightness, and incoming radon flux were taken into consideration.

Suggested Citation

  • Sergey Spotar & Nurlan Ibrayev & Aigerim Uyzbayeva & Jamil Atabayev, 2018. "Non-Uniformity of the Indoor Radon Concentration under a Convective Mixing Mechanism," IJERPH, MDPI, vol. 15(12), pages 1-7, December.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:12:p:2826-:d:189815
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