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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spelling	doaj-7a04b20b432c4155a23820eef509acb72021-04-02T19:03:11ZengEDP 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
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Gens Antonio de Vasconcelos Ramon B. Olivella Sebastià
spellingShingle	Gens Antonio de Vasconcelos Ramon B. Olivella Sebastià Towards higher temperatures in nuclear waste repositories E3S Web of Conferences
author_facet	Gens Antonio de Vasconcelos Ramon B. Olivella Sebastià
author_sort	Gens Antonio
title	Towards higher temperatures in nuclear waste repositories
title_short	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_sort	towards higher temperatures in nuclear waste repositories
publisher	EDP Sciences
series	E3S Web of Conferences
issn	2267-1242
publishDate	2020-01-01
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.
url	https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/65/e3sconf_icegt2020_01001.pdf
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Towards higher temperatures in nuclear waste repositories

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