Four-Plate Electrolyzer Cassette With 3D Cooling Channels
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Solution Overview
Problem
Existing electrolyzers face challenges in achieving efficient and scalable designs for hydrogen production, particularly in maintaining optimal operating temperatures and preventing fluid mixing.
Innovation Solution
A cassette design for electrolyzers comprising two cooling plates and two electrolyte plates, with specific flow paths and openings for cooling, electrolyte, and gas fluids, ensuring efficient cooling and separation of fluids to optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional electrolyzer design is used, then the basic electrolysis function is achieved, but the temperature control efficiency and scalability are insufficient
Solution Approach 1:
The electrolyzer is divided into modular cassette units, each containing segmented cooling plates and electrolyte plates. This segmentation allows independent temperature control of each module, improving overall temperature management efficiency while maintaining scalability through modular assembly.
Solution Approach 2:
The cooling plates are designed with three-dimensional cooling channels that penetrate through the plate structure, providing cooling from multiple directions simultaneously. This dimensional approach enhances heat dissipation efficiency compared to conventional single-direction cooling methods.
2Device complexity
If fluid flow paths are not properly separated, then the structure becomes simpler, but fluid mixing occurs reducing efficiency
Solution Approach 1:
The flow paths are segmented into distinct channels within the cooling plates and electrolyte plates, with separate inlets and outlets for anodic and cathodic fluids. This segmentation prevents fluid mixing while maintaining a relatively simple overall structure through modular plate design.
Solution Approach 2:
The cooling plates serve as intermediary structures that physically separate the anodic and cathodic fluid paths while still allowing thermal interaction. The plate structure acts as a mediator that prevents direct fluid mixing but enables indirect heat transfer between opposing flow paths.
3Device complexity
If cooling is not efficient, then the structure is simpler, but temperature control is insufficient affecting performance
Solution Approach 1:
The cooling system utilizes three-dimensional cooling channels embedded within the cooling plates, allowing cooling fluid to flow through multiple levels and directions. This dimensional cooling approach provides superior temperature control compared to conventional surface-level cooling methods.
Solution Approach 2:
The cooling channels are designed to provide continuous cooling along the entire flow path of the electrolyte, ensuring consistent temperature control throughout the electrolysis process. The cooling action is maintained continuously rather than intermittently, improving overall temperature stability.
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 cassette design enables efficient cooling of electrolytic fluids, maintains optimal temperatures, and prevents fluid mixing, thereby enhancing the efficiency and scalability of the electrolyzer system.
Implementation Method 1
the electrolyte plates and cooling plates each are formed with cooling openings for a cooling fluid to pass the plate
Implementation Method 2
forming a cooling flow path between them... for a cooling fluid to pass the plate
Implementation Method 3
transporting the hydroxide ions (OH) from one electrode to the other
Implementation Method 4
Electrolyzers are devices that use electricity to drive an electrochemical reaction to break, e.g., water into hydrogen and oxygen
Data Source
AI summary
A cassette (1) for an electrolyzer includes two cooling plates (2) and two electrolyte plates (3a, 3c), in the form of an anodic electrolyte plate (3a) and a cathodic electrolyte plate (3c). The two cooling plates (2) contact each other at one surface forming a cooling flow path (5) between them. Each of the cooling plates (2) contacts an electrolyte plate (3a, 3c) at the other, opposite surface and forming an anodic electrolyte flow path (6a) between one of the cooling plates (2) and the anodic electrolyte plate (3a) and a cathodic electrolyte flow path (6c) between the other cooling plate (2) and the cathodic electrolyte plate (3c). The electrolyte plates (3a, 3c) and cooling plates (2) are each formed with cooling openings (7 in, 7out) for a cooling fluid to pass the plate (2, 3a, 3c), at least one anodic electrolyte fluid inlet (8 in) for an anodic electrolytic fluid to pass the plate (2, 3a, 3c), at least one cathodic electrolyte fluid inlet (9 in) for a cathodic electrolyte fluid to pass the plate (2, 3a, 3c), at least one anodic gas outlet (8out) for an anodic gas to pass the plate (2, 3a, 3c), and at least one cathodic gas outlet (9out) for a cathodic gas to pass the plate (2, 3a, 3c).