Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) (방사성폐기물학회지)

Korean Radioactive Waste Society (한국방사성폐기물학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Annual Atmospheric Dispersion Factors Between Continuous and Purge Releases of Gaseous Radioactive Effluents

  • Received : 2020.12.17
  • Accepted : 2021.03.08
  • Published : 2021.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Radioactive materials from nuclear power facilities can be released into the atmosphere through various channels. Recently, the dispersion of radioactive materials has become critical issue in Korea after Kori Unit 1 and Wolsong Unit 1 were permanently shut down. In this study, annual atmospheric dispersion factors were compared based on the continuous release and purge release using the XOQDOQ computer program, a method for calculating atmospheric dispersion factors at commercial nuclear power stations. The meteorological data analyzed in this study was based on the Shin Kori nuclear power meteorological tower which has the largest operating nuclear power plants in Korea, for three years (from 2008 to 2010). The analysis results of the dispersion factor of the radioactive material release obtained using the XOQDOQ program showed that the difference between the continuous release and purge release was within two times. This study will be valuable helpful for revealing the uncertainty of the predictive atmospheric dispersion factor to achieve regulation.

Keywords

Acknowledgement

This research was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP Project No. 20204010600130), the Republic of Korea.

References

  1. Nuclear Safety and Security Commission. Standards Radiation Protection, etc., Nuclear Safety and Security Commission Report, NSSC Notice 2019-10 (2019).
  2. J.K. Son, T.Y. Kong, J.R. Choi, and H.G. Kim, "A Review and Characteristics for Radioactive Effluents From the Nuclear Power Plants in Korea", J. Radiat. Prot., 37(3), 138-145 (2012). https://doi.org/10.14407/jrp.2012.37.3.138
  3. J.F Sagendorf, J.T. Goll, and W.F. Sandusky. XOQDOQ: Computer Program for the Meteorological Evaluation of Routine Effluent Release at Nuclear Power Station, Pacific Northwest Laboratory Report, NUREG/CR2919 (1982).
  4. U.S. Nuclear Regulatory Commission. Regulatory Guide 1.184, Decommissioning of Nuclear Power Reactors, U.S. NRC Report, Washington, D.C. (2013).
  5. Nuclear Safety and Security Commission. Standards for the Evaluation and Survey on the Weather Conditions at the Site of Nuclear Facility, Nuclear Safety and Security Commission Report, NSSC Notice 2017-26 (2017).
  6. IAEA Safety Standards. Prospective Radiological Environmental Impact Assessment for Facilities and Activities, IAEA Report, Safety Standard Series No. GSG-10 (2018).
  7. U.S. Nuclear Regulatory Commission. Regulatory Guide 1.23, Meteorological Monitoring Programs for Nuclear Power Plants, U.S. NRC Report, Washington, D.C. (2007).
  8. S.H. Lee, W.T. Hwang, and C.L. Kim, "A Study on Annual Release Objectives and Annual Release Limits of Gaseous Effluents During Decommissioning of Nuclear Power Plants", J. Nucl. Fuel Cycle Waste Technol., 17(3), 299-311 (2019). https://doi.org/10.7733/jnfcwt.2019.17.3.299