Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea

Abstract Following the permanent shutdown of Kori Unit 1 in June 2017, the Republic of Korea has been preparing for full‐scale decommissioning work. In addition, the design life of 12 units will expire by 2030. If decommissioning begins without initially extending the lifespan of nuclear reactors, m...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jin Ho Son, Tae Young Kong, Ho Yeon Yang, Seong Jun Kim, Eun Ji Lee, Wo Suk Choi, Woon Kwan Chung, Hee Geun Kim
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	decommissioning radiation dose radioactive waste RESRAD recycle self‐disposal Technology T Science Q
Acceso en línea:	https://doaj.org/article/af81a072cdac46139064a3f15db319a8
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:af81a072cdac46139064a3f15db319a8
record_format	dspace
spelling	oai:doaj.org-article:af81a072cdac46139064a3f15db319a82021-12-02T05:24:30ZEstimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea2050-050510.1002/ese3.995https://doaj.org/article/af81a072cdac46139064a3f15db319a82021-12-01T00:00:00Zhttps://doi.org/10.1002/ese3.995https://doaj.org/toc/2050-0505Abstract Following the permanent shutdown of Kori Unit 1 in June 2017, the Republic of Korea has been preparing for full‐scale decommissioning work. In addition, the design life of 12 units will expire by 2030. If decommissioning begins without initially extending the lifespan of nuclear reactors, massive amounts of decommissioning wastes will be generated in a short period. The total amount of radioactive wastes generated during the dismantling of a pressurized water reactor is estimated as 6200 tons, and approximately 70% of the total radioactive wastes are classified as metal wastes. Self‐disposal through the decontamination of contaminated metals can contribute to the economic feasibility of decommissioning nuclear power plants because it can reduce the disposal cost of medium‐ and low‐level radioactive wastes. Therefore, this study evaluated the possibility of self‐disposal of steam generators that may occur during future decommissioning. The radioactivity analysis data on transferring the replaced steam generator of Hanul Unit 1 were used as the source term. The decontamination factor was calculated by applying 200 units from 1200 to 2000, and the radiation dose was evaluated using the RESRAD‐RECYCLE code. Consequently, the single‐nuclide concentration and sum of the allowable concentration fraction for mixed radionuclides at a decontamination factor of 1400 were below the regulatory requirements; however, the dose evaluation results exceeded the allowable dose in some scenarios. The decontamination factor was 2000, when the dose evaluation results for all scenarios met the regulatory requirements.Jin Ho SonTae Young KongHo Yeon YangSeong Jun KimEun Ji LeeWo Suk ChoiWoon Kwan ChungHee Geun KimWileyarticledecommissioningradiation doseradioactive wasteRESRAD recycleself‐disposalTechnologyTScienceQENEnergy Science & Engineering, Vol 9, Iss 12, Pp 2206-2214 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	decommissioning radiation dose radioactive waste RESRAD recycle self‐disposal Technology T Science Q
spellingShingle	decommissioning radiation dose radioactive waste RESRAD recycle self‐disposal Technology T Science Q Jin Ho Son Tae Young Kong Ho Yeon Yang Seong Jun Kim Eun Ji Lee Wo Suk Choi Woon Kwan Chung Hee Geun Kim Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
description	Abstract Following the permanent shutdown of Kori Unit 1 in June 2017, the Republic of Korea has been preparing for full‐scale decommissioning work. In addition, the design life of 12 units will expire by 2030. If decommissioning begins without initially extending the lifespan of nuclear reactors, massive amounts of decommissioning wastes will be generated in a short period. The total amount of radioactive wastes generated during the dismantling of a pressurized water reactor is estimated as 6200 tons, and approximately 70% of the total radioactive wastes are classified as metal wastes. Self‐disposal through the decontamination of contaminated metals can contribute to the economic feasibility of decommissioning nuclear power plants because it can reduce the disposal cost of medium‐ and low‐level radioactive wastes. Therefore, this study evaluated the possibility of self‐disposal of steam generators that may occur during future decommissioning. The radioactivity analysis data on transferring the replaced steam generator of Hanul Unit 1 were used as the source term. The decontamination factor was calculated by applying 200 units from 1200 to 2000, and the radiation dose was evaluated using the RESRAD‐RECYCLE code. Consequently, the single‐nuclide concentration and sum of the allowable concentration fraction for mixed radionuclides at a decontamination factor of 1400 were below the regulatory requirements; however, the dose evaluation results exceeded the allowable dose in some scenarios. The decontamination factor was 2000, when the dose evaluation results for all scenarios met the regulatory requirements.
format	article
author	Jin Ho Son Tae Young Kong Ho Yeon Yang Seong Jun Kim Eun Ji Lee Wo Suk Choi Woon Kwan Chung Hee Geun Kim
author_facet	Jin Ho Son Tae Young Kong Ho Yeon Yang Seong Jun Kim Eun Ji Lee Wo Suk Choi Woon Kwan Chung Hee Geun Kim
author_sort	Jin Ho Son
title	Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
title_short	Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
title_full	Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
title_fullStr	Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
title_full_unstemmed	Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea
title_sort	estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in korea
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/af81a072cdac46139064a3f15db319a8
work_keys_str_mv	AT jinhoson estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT taeyoungkong estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT hoyeonyang estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT seongjunkim estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT eunjilee estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT wosukchoi estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT woonkwanchung estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea AT heegeunkim estimationofradiationdoseresultingfromtherecyclingoflargemetalwastesfromdecommissioningnuclearpowerplantsinkorea
_version_	1718400435036880896

Estimation of radiation dose resulting from the recycling of large metal wastes from decommissioning nuclear power plants in Korea

Ejemplares similares