Fusion Engineering and Design· 2026Q2
Parametric effects and rate-limiting mechanism analysis of tritium extraction process in permeator against vacuum
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- Q2SCImago
- 2026year
Short summary
A 3D transport model and 1D analytical model reveal that reducing liquid lithium-lead inlet flow velocity, increasing temperature, lengthening the pipe, and using highly permeable membranes boost tritium extraction efficiency in a vacuum permeator.
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Key points
- Tritium extraction efficiency is enhanced by decreasing liquid lithium-lead inlet flow velocity.
- Higher operating temperatures and longer pipe lengths improve tritium extraction.
- Utilizing highly permeable membrane materials is crucial for boosting extraction efficiency.
- A dimensionless number (ξ) defines three physical regimes and transition boundaries for design optimization.
AI-generated from the title and abstract; the full text is not read.
Abstract
Achieving high-efficiency tritium extraction represents a significant engineering challenge in the context of liquid breeder blanket concepts. The present paper focuses on the permeator against vacuum technology, establishing three-dimensional transport models and one-dimensional analytical models for tritium transport in liquid lithium-lead and permeation membranes. A quantitative comparison of the differences in tritium extraction efficiency calculated by the two models is made through systematic parametric scans of key variables such as inlet flow velocity, temperature, pipe length, and membrane material. The findings suggest that a reduction in the inlet flow velocity of liquid lithium-lead, an increase in temperature, an extension in pipe length, and the utilisation of highly permeable membrane materials can enhance the tritium extraction efficiency. It is evident that, based on the dimensionless number termed ξ which has been derived from the one-dimensional analytical formulation, three distinct physical regimes and their transition boundaries are identified,this provides qualitative guidance for the optimisation of engineering design.
The authors' abstract, as published at the source. Fusion Engineering and Design, 2026 · DOI ↗
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