Electrolytic Cell Flow Path Structure for Uniform CO2 Reduction
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Solution Overview
Problem
Existing electrolytic cells for carbon dioxide reduction suffer from inefficiencies and instability in the reduction process, leading to energy losses and reduced economic efficiency.
Innovation Solution
The electrolytic cell design incorporates a plate-shaped flow path structure with specific inflow and outflow units and connection units, ensuring uniform fluid distribution and stable fluid supply and discharge through oblong recesses and grooves, allowing for precise alignment and smooth fluid flow without stagnation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fluid supply methods are used in electrolytic cells, then the structure is simple, but the fluid distribution is non-uniform and the reduction process is unstable
Solution Approach 1:
The flow path structure is divided into multiple functional segments: introduction units for fluid entry, connection units for distribution, and outflow units for discharge. Each segment performs a specific function to ensure uniform fluid distribution across the electrode surface, thereby stabilizing the reduction process without excessive complexity
Solution Approach 2:
The introduction units are designed with abutting connections to supply pipes that pre-position and pre-distribute fluid before it enters the main flow path. This preliminary distribution action ensures uniform fluid delivery to multiple connection units, preventing instability in the reduction process
2Manufacturing precision
If simple supply pipes are used, then the device is easy to manufacture, but the fluid distribution uniformity is poor
Solution Approach 1:
The introduction unit, connection units, and outflow units are merged into a single integrated flow path structure that can be manufactured as one piece. This merging maintains high manufacturing precision for uniform fluid distribution while improving ease of manufacture by eliminating the need to assemble multiple separate components
Solution Approach 2:
Different regions of the flow path structure are designed with locally optimized features: introduction units have abutting connections for precise fluid entry, connection units have groove shapes for even distribution, and outflow units have widened sections for smooth discharge. This local quality optimization achieves uniform fluid distribution without complicating the overall manufacturing process
3Loss of energy
If conventional flow paths are used, then the structure is simple, but energy efficiency is low due to non-uniform fluid distribution
Solution Approach 1:
The flow path is segmented into introduction, connection, and outflow units that work together to ensure uniform fluid distribution across the electrode. This uniform distribution maximizes the effectiveness of each unit of fluid processed, reducing energy waste and improving overall energy efficiency without requiring excessive structural complexity
Solution Approach 2:
The connected flow path structure creates continuous and uniform fluid flow across all connection units, ensuring that the electrochemical reduction process operates continuously and efficiently. This continuity eliminates dead zones and non-uniform flow patterns that would cause energy losses
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 enhances the efficiency and stability of the carbon dioxide reduction process, reducing energy losses and improving economic efficiency by ensuring uniform fluid distribution and smooth merging in the electrolytic cell.
Implementation Method 1
after the fluid supplied from the inflow side supply pipe is diffused in the introduction unit, the fluid can uniformly flow to the plurality of connection units
Implementation Method 2
a cathode has a catalyst layer formed on the side of a gas diffusion layer in contact with an electrolytic solution by using a carbon dioxide reduction catalyst, and carbon dioxide gas is supplied to the cathode from the side of the gas diffusion layer opposite to the catalyst layer, thereby electrochemically reducing the carbon dioxide
Data Source
AI summary
A fluid flow path has an introduction unit, an outflow unit, and contact units. The introduction unit is formed on a surface of a cathode-side primary flow path structure opposite to a cathode as an elongated recess with a width smaller than that of a tube. The tube abuts against the introduction unit so as to straddle the introduction unit. The outflow unit is formed on a surface of the cathode-side primary flow path structure opposite to the cathode as an elongated recess with a width smaller than that of the tube. The tube abuts against the outflow unit so as to straddle the outflow unit. The contact unit is formed in the groove shape on a surface of the cathode-side primary flow path structure on the cathode side. The contact unit has its upstream end connected to the introduction unit and its downstream end connected to the outflow unit.