用過核子燃料/高階放射性廢棄物深層地質處置熱-水-力-化(THMC)耦合效應數值模式發展

Project Details

Description

The deep geological disposal is considered for the long-term isolation of spent nuclear fuel (SFD)/ high-level radioactive waste (HLW) from biosphere. Coupled thermo-hydro-mechanical-chemical (THMC) processes occurs in deep geological repositories for SNF/HLW disposal. Therefore, the coupled THMC processes must be well understood for safe deep geological disposal because they play important roles in the design, construction, operation and close of a repository. Moreover, THMC processes should be predicted using the state-of-the-art numerical tools because they are integral to building confidence in the safety assessment. This project is thus designed to develop a novel numerical model for predicting the coupled THMC processes in a SNF/HLW disposal. In particular, the developed numerical model will fully couple THMC processes in a computercode rather than combining two different codes to sequentially simulate THMC processes. Several comparisons of the developed THMC numerical models against existing analytical models will be executed for verification andperformance evaluation of the newly developed model.
StatusFinished
Effective start/end date1/01/2331/12/23

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 12 - Responsible Consumption and Production
  • SDG 17 - Partnerships for the Goals

Keywords

  • spent nuclear fuel
  • high-level radioactive waste
  • deep geological disposal
  • coupled thermo-hydro-mechanical-chemical (THMC) processes
  • numerical model
  • analytical solution

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