Towards higher temperatures in nuclear waste repositories

Recently, there is a tendency to explore the possibility of increasing the maximum design temperature in deep geological repositories for high-level nuclear waste and spent fuel. In the paper, a number of issues related to the use of higher temperatures are reviewed. Both bentonite barriers and argi...

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Main Authors: Gens Antonio, de Vasconcelos Ramon B., Olivella Sebastià
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/65/e3sconf_icegt2020_01001.pdf
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author Gens Antonio
de Vasconcelos Ramon B.
Olivella Sebastià
author_facet Gens Antonio
de Vasconcelos Ramon B.
Olivella Sebastià
author_sort Gens Antonio
collection DOAJ
description Recently, there is a tendency to explore the possibility of increasing the maximum design temperature in deep geological repositories for high-level nuclear waste and spent fuel. In the paper, a number of issues related to the use of higher temperatures are reviewed. Both bentonite barriers and argillaceous host rocks are addressed. An application involving the modelling of a large-scale field test conducted at a maximum temperature of 140ºC is presented. It is shown that currently available theoretical formulations and computer codes are capable to deal with temperatures above 100ºC and to reproduce satisfactorily the thermally-induced overpressures in the rock.
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spelling doaj.art-7a04b20b432c4155a23820eef509acb72022-12-21T23:47:52ZengEDP SciencesE3S Web of Conferences2267-12422020-01-012050100110.1051/e3sconf/202020501001e3sconf_icegt2020_01001Towards higher temperatures in nuclear waste repositoriesGens Antonio0de Vasconcelos Ramon B.1Olivella Sebastià2Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC)International Centre for Numerical Methods in Engineering (CIMNE)Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya (UPC)Recently, there is a tendency to explore the possibility of increasing the maximum design temperature in deep geological repositories for high-level nuclear waste and spent fuel. In the paper, a number of issues related to the use of higher temperatures are reviewed. Both bentonite barriers and argillaceous host rocks are addressed. An application involving the modelling of a large-scale field test conducted at a maximum temperature of 140ºC is presented. It is shown that currently available theoretical formulations and computer codes are capable to deal with temperatures above 100ºC and to reproduce satisfactorily the thermally-induced overpressures in the rock.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/65/e3sconf_icegt2020_01001.pdf
spellingShingle Gens Antonio
de Vasconcelos Ramon B.
Olivella Sebastià
Towards higher temperatures in nuclear waste repositories
E3S Web of Conferences
title Towards higher temperatures in nuclear waste repositories
title_full Towards higher temperatures in nuclear waste repositories
title_fullStr Towards higher temperatures in nuclear waste repositories
title_full_unstemmed Towards higher temperatures in nuclear waste repositories
title_short Towards higher temperatures in nuclear waste repositories
title_sort towards higher temperatures in nuclear waste repositories
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/65/e3sconf_icegt2020_01001.pdf
work_keys_str_mv AT gensantonio towardshighertemperaturesinnuclearwasterepositories
AT devasconcelosramonb towardshighertemperaturesinnuclearwasterepositories
AT olivellasebastia towardshighertemperaturesinnuclearwasterepositories