Conference Abstract
| 
10 Nov 2021
Conference Abstract |
| 10 Nov 2021
| 10 Nov 2021
Workshop Safety and Uncertainty
Thomas Hassel
Institut für Werkstoffkunde, Leibniz Universität Hannover, 30823 Garbsen, Germany
Volker Mintzlaff
Institut für Geomechanik und Geotechnik, Technische Universität Braunschweig, 38106 Braunschweig, Germany
Joachim Stahlmann
Institut für Geomechanik und Geotechnik, Technische Universität Braunschweig, 38106 Braunschweig, Germany
Klaus-Jürgen Röhlig
Institut für Endlagerforschung, Technische Universität Clausthal, 38678 Clausthal-Zellerfeld, Germany
Anne Eckhardt
CORRESPONDING AUTHOR
risicare GmbH, 8125 Zollikerberg, Switzerland
Related authors
Thomas Hassel
Saf. Nucl. Waste Disposal, 2, 43–44, https://doi.org/10.5194/sand-2-43-2023, https://doi.org/10.5194/sand-2-43-2023, 2023
Short summary
Short summary
An extended site search can be used within the framework of container development. In this context, the application of a new development methodology also allows for concept planning independent of a host rock. The methodical approach will be shown in this presentation, and it will contribute to maintaining and extending the state of the art in science and technology in the process of repository searches. The aim is continuous further work on the topic of repository container development.
Benedict Bongartz, Thomas Hassel, and Hans Jürgen Maier
Saf. Nucl. Waste Disposal, 2, 191–192, https://doi.org/10.5194/sand-2-191-2023, https://doi.org/10.5194/sand-2-191-2023, 2023
Short summary
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Further investigations of the reorientation behaviour of hydride precipitates in cladding tubes from zircaloy-2 under interim storage conditions have been carried out. The results show that, even below tolerated temperature and stress states, reorientation occurs when the hydrogen contents are low. The hydrides in some cases extended through a wall in the experiments. This shows the need for further investigation regarding alloys that take up small hydrogen amounts.
Anne Eckhardt, Martina Heiermann, Dirk Kluge, and Klaus-Jürgen Röhlig
Saf. Nucl. Waste Disposal, 2, 187–188, https://doi.org/10.5194/sand-2-187-2023, https://doi.org/10.5194/sand-2-187-2023, 2023
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In the workshop
Optimising the safety case through transdisciplinary research?, we want to discuss how safety cases on the disposal path for high-level radioactive waste can be optimised in a transdisciplinary way. The workshop not only offers the opportunity to exchange ideas on topics concerning the safety case, such as the design of a digital safety case, but also to get experiences with transdisciplinary methods and tools first hand.
Thomas Hassel
Saf. Nucl. Waste Disposal, 2, 43–44, https://doi.org/10.5194/sand-2-43-2023, https://doi.org/10.5194/sand-2-43-2023, 2023
Short summary
Short summary
An extended site search can be used within the framework of container development. In this context, the application of a new development methodology also allows for concept planning independent of a host rock. The methodical approach will be shown in this presentation, and it will contribute to maintaining and extending the state of the art in science and technology in the process of repository searches. The aim is continuous further work on the topic of repository container development.
Anne Eckhardt, Pius Krütli, and Klaus-Jürgen Röhlig
Saf. Nucl. Waste Disposal, 2, 83–84, https://doi.org/10.5194/sand-2-83-2023, https://doi.org/10.5194/sand-2-83-2023, 2023
Short summary
Short summary
Peer reviews are conducted to improve the quality of scientific publications and can also be applied to the safety case. Research within the TRANSENS project suggests that extending the spectrum of reviewers and using transdisciplinary methods and tools in reviews not only opens perspectives to improve the quality, legitimacy, and acceptance of a safety case, but also increases the resilience of safety on the disposal pathway.
Benedict Bongartz, Thomas Hassel, and Hans Jürgen Maier
Saf. Nucl. Waste Disposal, 2, 191–192, https://doi.org/10.5194/sand-2-191-2023, https://doi.org/10.5194/sand-2-191-2023, 2023
Short summary
Short summary
Further investigations of the reorientation behaviour of hydride precipitates in cladding tubes from zircaloy-2 under interim storage conditions have been carried out. The results show that, even below tolerated temperature and stress states, reorientation occurs when the hydrogen contents are low. The hydrides in some cases extended through a wall in the experiments. This shows the need for further investigation regarding alloys that take up small hydrogen amounts.
Roman Seidl and Volker Mintzlaff
Saf. Nucl. Waste Disposal, 2, 223–224, https://doi.org/10.5194/sand-2-223-2023, https://doi.org/10.5194/sand-2-223-2023, 2023
Short summary
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On the proposed poster, we report the results of an experimental study (N = 177) that investigated the preferences for and trust in different visualizations of simulation results and tested different modes of communication (verbal, numerical, and visual/graphical). The oral presentation will focus on another challenge of uncertainty communication, namely unquantifiable model uncertainties. In a repository, these may arise from the heterogeneity of the host rock.
Klaus-Jürgen Röhlig, Peter Hocke, Pius Krütli, René Martin, and Ulrich Smeddinck
Saf. Nucl. Waste Disposal, 1, 203–204, https://doi.org/10.5194/sand-1-203-2021, https://doi.org/10.5194/sand-1-203-2021, 2021
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Using case examples, insights and experiences from a complex conceptualisation and application process and two years research experience in the TRANSENS project will be presented taking the views of the involved (standing
Working Group Populationand scientists). Particularly, the understanding of transdisciplinarity will be discussed given the varying definitions in literature.
Klaus-Jürgen Röhlig, Marcel Ebeling, Anne Eckhardt, Peter Hocke, and Pius Krütli
Saf. Nucl. Waste Disposal, 1, 205–207, https://doi.org/10.5194/sand-1-205-2021, https://doi.org/10.5194/sand-1-205-2021, 2021
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For specialists, the tool
Safety Case(in the German site selection procedure:
Sicherheitsuntersuchung) is an established instrument for supporting safety-relevant decisions in a stepwise disposal programme. Actors, affected individuals and interested persons have different notions and value judgements about it, though. In the TRANSENS project, it is planned to reveal these notions and judgements and, if possible, to derive conclusions about optimising the safety case concept.
Anne Eckhardt
Saf. Nucl. Waste Disposal, 1, 285–286, https://doi.org/10.5194/sand-1-285-2021, https://doi.org/10.5194/sand-1-285-2021, 2021
Cited articles
Hassel, T., Mintzlaff, V., Stahlmann, J., Röhlig,
K. J., and Eckhardt, A.: Sicherheitsrelevante Barrieren bei der
Endlagerung: Ungewissheiten aus der Perspektive der
Ingenieurwissenschaften, TRANSENS-Bericht,
https://www.transens.de,
2021.
