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Evaluation on Radioactive Waste Disposal Amount of Kori Unit 1 Reactor Vessel Considering Cutting and Packaging Methods

고리 1호기 원자로 압력용기 절단과 포장 방법에 따른 처분 물량 산정

  • 최유정 (한전국제원자력대학원대학교) ;
  • 이성철 (한전국제원자력대학원대학교) ;
  • 김창락 (한전국제원자력대학원대학교)
  • Received : 2015.08.07
  • Accepted : 2016.01.04
  • Published : 2016.06.30

Abstract

Decommissioning of nuclear power plants has become a big issue in South Korea as some of the nuclear power plants in operation including Kori unit 1 and Wolsung unit 1 are getting old. Recently, Wolsung unit 1 received permission to continue operation while Kori unit 1 will shut down permanently in June 2017. With the consideration of segmentation method and disposal containers, this paper evaluated final disposal amount of radioactive waste generated from decommissioning of the reactor pressure vessel in Kori unit 1 which will be decommissioned as the first in South Korea. The evaluation results indicated that the final disposal amount from the top and bottom heads of the reactor pressure vessel with hemisphere shape decreased as they were cut in smaller more effectively than the cylindrical part of the reactor pressure vessel. It was also investigated that 200 L and 320 L radioactive waste disposal containers used in Kyung-Ju disposal facility had low payload efficiency because of loading weight limitation.

Acknowledgement

Supported by : 한국원자력안전재단

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