Electrolysis Concretion Device With Optimized Cathode Area Coefficient
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Solution Overview
Problem
Current devices for forming calcareous concretions in electrolytic media with meshed metal conductors lack mechanical properties and efficiency, particularly for coastline stabilization and maritime engineering applications, due to inadequate dimensioning and energy optimization.
Innovation Solution
A device comprising a cathodic structure with a mesh of metal conductors, an anode, and an electric generator, where the cathodic structure has an area coefficient between 20% and 150%, optimized for efficient energy injection and OH- ion production, using materials like steels, stainless steels, copper, and copper alloys, to promote calcareous concretion formation with enhanced mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cathode is dimensioned using conventional current density calculations for unapertured structures, then the design is simple, but the effectiveness and mechanical properties of calcareous concretions formed on mesh structures are poor
Solution Approach 1:
The patent introduces a new dimensioning parameter - the area coefficient (ratio of metal conductor area to area of influence) - to replace conventional current density calculations. This parameter change enables effective dimensioning of mesh cathodes by accounting for the three-dimensional volume of influence around conductors, thereby improving concretion formation effectiveness while providing a systematic approach to design.
Solution Approach 2:
The patent transitions from two-dimensional area-based dimensioning (conventional current density on surface area) to three-dimensional volume-based dimensioning (area of influence encompassing the volume around mesh conductors). This dimensional shift captures the spatial distribution of ionic equilibria and concretion formation zones, resolving the inadequacy of surface-based calculations for mesh structures.
2Strength
If the mesh density is increased to improve concretion adhesion, then mechanical properties improve, but the weight and cost of the cathodic device increase
Solution Approach 1:
The area coefficient serves as a controlling parameter that balances mesh density with performance requirements. By optimizing this coefficient within the specified range, the patent achieves adequate concretion adhesion and mechanical strength while avoiding excessive mesh density that would increase weight and cost. This provides a quantitative basis for selecting appropriate mesh specifications.
Solution Approach 2:
The patent recognizes that different regions of the mesh structure may require different densities based on local hydrodynamic conditions and concretion formation requirements. The area coefficient allows for localized optimization where mesh density can be varied to achieve necessary mechanical properties in critical areas while maintaining lower density in less critical areas, thereby reducing overall weight.
3Productivity
If higher current density is applied to accelerate concretion formation, then productivity increases, but energy consumption and cost increase
Solution Approach 1:
The patent introduces the area coefficient as a parameter that optimizes the relationship between current application and concretion formation efficiency. By properly dimensioning the cathode using this coefficient, the system achieves effective concretion formation at moderate current densities, avoiding the energy waste associated with excessively high current densities while maintaining productive formation rates.
Solution Approach 2:
The optimized cathode design with proper area coefficient enables the system to achieve efficient concretion formation through natural ionic equilibria shifts and pH changes in the electrolyte. This reduces reliance on high energy input, allowing the electrochemical processes to proceed efficiently with moderate energy consumption while maintaining high productivity.
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
The solution enables the formation of calcareous concretions with excellent mechanical properties, suitable for coastal protection and maritime engineering, while optimizing energy use and reducing costs by controlling the area coefficient and material selection.
Implementation Method 1
a direct electric current is made to flow between the anode and the conductive metal structure forming the cathode, so as to allow cathodic polarization of the structure, resulting in heating thereof, a rise in pH, release of H2, a shift in ionic equilibria and a supersaturation of CaCO3 and Mg(OH)2 followed by precipitation thereof
Implementation Method 2
a rise in pH is a reflection of the OH− ions generated by electrolysis. This rise in pH results in the precipitation of minerals dissolved in the sea water
Data Source
AI summary
The invention relates to a device for forming concretions in an electrolytic medium by electrolysis, the device comprising an anode and a cathode device connected to each other, the cathode device comprising an arrangement of metal conductors forming a mesh that can be developed in a plane, in a plane P, the cathode device having a surface coefficient α of between 20% and 150%, in which: α=chemical surface area/influence surface area; the chemical surface area corresponding to the total surface area of the metal conductors intended to be in contact with the electrolytic medium; the influence surface area corresponding to the orthonormal projection of an influence volume in the plane P; and the influence volume corresponding to the volume that extends at any point in space within two centimetres of one of the metal conductors when the mesh is considered developed in a plane, in the plane P.