Superconducting Cable Wire Arrangement by Temperature Gradient
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Solution Overview
Problem
Existing superconducting cable systems incur increased manufacturing costs and operational inefficiencies due to the use of more superconducting wires than necessary, caused by determining the number of wires based on the section with the highest temperature, leading to unnecessary wire usage and prolonged connection times.
Innovation Solution
The method involves varying the number of superconducting wires along the cable sections based on temperature gradients, increasing the number from the lowest to the highest temperature section while maintaining current-carrying capability, and optimizing wire distribution by considering the operational states of refrigerators and cooling fluid circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of superconducting wires is determined based on the section with the highest temperature, then the current-carrying capability is maintained, but the manufacturing cost increases and operation time is prolonged
Solution Approach 1:
The patent applies local quality by varying the number of superconducting wires according to the temperature distribution along different sections of the cable. Sections with lower temperatures use fewer wires, while sections with higher temperatures use more wires, optimizing the overall current-carrying capability without using excessive materials throughout the entire cable length.
Solution Approach 2:
The patent divides the superconducting cable into multiple sections based on temperature zones and determines the number of wires for each section independently. This segmentation allows the system to optimize wire distribution according to local temperature conditions rather than using a uniform wire count throughout.
2Reliability
If the number of superconducting wires is determined based on the section with the highest temperature, then the current-carrying capability is maintained, but the manufacturing cost increases
Solution Approach 1:
The patent applies local quality by varying the number of superconducting wires according to the temperature distribution along different sections of the cable. Sections with lower temperatures use fewer wires, while sections with higher temperatures use more wires, optimizing the overall current-carrying capability without using excessive materials throughout the entire cable length.
Solution Approach 2:
The patent changes the parameter of wire quantity based on temperature parameters. By establishing a relationship between temperature and the number of required wires, the system dynamically adjusts wire distribution to match actual thermal conditions, reducing unnecessary material usage and manufacturing costs.
3Reliability
If the number of superconducting wires is determined based on the section with the highest temperature, then the current-carrying capability is maintained, but the operation time is prolonged
Solution Approach 1:
The patent extracts only the necessary number of wires for each specific section based on its temperature requirements, rather than installing the maximum number of wires in every section. This reduces the total connection time while maintaining adequate current-carrying capability for each section's actual operating conditions.
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 approach minimizes the total number of wires in the superconducting cable, reducing manufacturing costs and operation time, while maintaining current-carrying capability and enhancing operational efficiency.
Implementation Method 1
a cooling fluid (for example, liquid nitrogen) flows is provided in the superconducting cable 10
Implementation Method 2
superconducting wires in which the resistance drops abruptly at a low temperature (substantially 100K or less in a high-temperature superconductor, and substantially 20K or less in a low-temperature superconductor) and approaches zero
Implementation Method 3
a refrigerator 40 provided on the front side of the one terminal structure 20
Implementation Method 4
a pump 42 is installed between the refrigerator 40 and the terminal structure 20 to circulate the cooling fluid through the superconducting cable 10 and the recovery pipe 50
Data Source
AI summary
The arrangement method of superconducting wires of a superconducting cable, includes: in a case where a refrigerator is installed at one of terminal structures provided on both sides of a superconducting cable, and a cooling fluid is passed through the superconducting cable by a pump for cooling, setting the numbers of superconducting wires of sections of the superconducting cable installed between the terminal structures on both the sides to be different depending to temperatures of the sections, wherein the numbers of superconducting wires are increased from the section of the superconducting cable having the lowest temperature to the section thereof having the highest temperature while maintaining a current-carrying capability.