Modular Stellarator Plasma Vessel Interfaces for Coil Replacement
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Solution Overview
Problem
The construction and maintenance of stellarators face challenges due to the difficulty in replacing individual components without extensive disassembly, and the management of radioactive waste generated during operation is inefficient, leading to increased operational costs and safety concerns.
Innovation Solution
A modular stellarator design with replaceable modules, where neighboring modules are coupled via plasma vessel interfaces strategically positioned relative to superconducting coils, allowing for individual module replacement and efficient waste management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If stellarators are constructed as monolithic structures, then structural integrity is maintained, but maintenance and component replacement become exceedingly difficult and time-consuming
Solution Approach 1:
The stellarator is divided into multiple modular segments, each comprising a plasma vessel segment and associated superconducting coils. These modules can be independently removed and replaced through plasma vessel interfaces, enabling maintenance without dismantling the entire structure while preserving structural integrity through standardized coupling mechanisms
2Reliability
If traditional stellarator designs are used, then plasma confinement is achieved, but downtime and operational costs increase due to extensive disassembly requirements
Solution Approach 1:
The device is segmented into replaceable modules that can be quickly swapped out, dramatically reducing downtime for maintenance and coil replacement while maintaining plasma confinement capability through standardized interfaces and modular architecture
Solution Approach 2:
The stellarator transitions from a static monolithic structure to a dynamic modular system where components can be rapidly reconfigured and replaced, enhancing operational flexibility and reducing maintenance downtime
3Manufacturing precision
If components are closely positioned for proper functioning, then magnetic field precision is maintained, but replacement complexity increases due to alignment requirements
Solution Approach 1:
Alignment features and positioning mechanisms are pre-integrated into the plasma vessel interfaces and module designs, enabling precise coil positioning during replacement without requiring complex real-time alignment procedures, thus maintaining magnetic field precision while simplifying the replacement process
4Object-affected harmful factors
If efficient waste management is implemented, then safety is enhanced, but system complexity increases due to segregation requirements
Solution Approach 1:
The modular architecture naturally facilitates waste management by enabling selective removal and segregation of activated components from non-activated ones. Modules containing radioactive materials can be independently identified and removed for processing, while reusable components are retained, simplifying waste management through the existing modular structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design reduces downtime and operational costs by enabling easy maintenance and upgrades, while effectively segregating reusable components and radioactive waste, enhancing safety and operational efficiency.
Implementation Method 1
a plurality of non-planar, superconducting coils for generating a magnetic field for confining a plasma inside the plasma vessel
Implementation Method 2
non-planar, superconducting coils
Implementation Method 3
generate a magnetic field for confining a plasma inside the plasma vessel
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a stellarator (1) comprising: a plasma vessel (10); a plurality of non-planar, superconducting coils (20) for generating a magnetic field for confining a plasma inside the plasma vessel; a plurality of stellarator modules (8), each stellarator module comprising a plasma vessel segment (10a, 10b) and a corresponding subset of the plurality of non-planar, superconducting coils; wherein neighboring stellarator modules are configured to be coupled to each other via a corresponding plasma vessel interface (30); wherein the plasma vessel interfaces are positioned with respect to the plurality of non-planar, superconducting coils such that at least one of the stellarator modules can be replaced with a replacement stellarator module to restore the plasma vessel and the plurality of coils.