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Accelerated Parameterized computation of the Thermal Behaviour of Dual Purpose casks

Title data

Roppel, Matthias ; Lange, Christopher ; Roith, Bernd ; Rieg, Frank:
Accelerated Parameterized computation of the Thermal Behaviour of Dual Purpose casks.
In: Proceedings of the Design Society. Vol. 1 (August 2021) . - pp. 313-322.
ISSN 2732-527X
DOI: https://doi.org/10.1017/pds.2021.32

Abstract in another language

One of the fundamental requirements for dual purpose casks, which are used for the transport and interim storage of spent fuel assemblies, is the safe removal of the resulting decay heat. To ensure this the temperature fields are determined using numerical methods. However, their modelling is complex and the computation time-consuming.

In order to accelerate this thermal assessment, we have developed z88ENSI, an independent simulation tool based on finite element analysis. With regard to the modelling, various parameters can be varied quickly with our newly designed mesh manipulation procedure. Concerning the computation time, we developed and implemented an approach for calculating three-dimensional temperature fields, based on an already existing two-dimensional method which lacked precision. We accelerate the calculation by using extended thermal gap constraints, which depict the thermal behaviour of the non-meshed, gas-filled gaps inside the cask. We validate the results of our calculation tool by comparing them with those generated with Ansys. The results of the comparison temperatures differ between −0.8% and 3.7%. The speedup of z88ENSI for the specific validation setting is between 6.9 and 15.0.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Numerical methods; Product modelling/models; Simulation
Institutions of the University: Faculties > Faculty of Engineering Science > Former Professors > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing Stephan Tremmel
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 25 Aug 2021 09:38
Last Modified: 25 Aug 2021 09:38
URI: https://eref.uni-bayreuth.de/id/eprint/66837