Flow Field Plate Layout for Uniform Gas Distribution in PEM Compressors
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Solution Overview
Problem
Conventional flow field plates in solid-state compressors do not achieve optimal gas distribution, leading to inefficiencies in the compression process.
Innovation Solution
A flow field plate design with a channel plan featuring recesses and through holes, allowing for improved gas distribution and reduced mechanical resistance, formed from multiple parts if necessary, and capable of withstanding mechanical forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional flow field plates are used, then the structure is simple, but the gas distribution is not optimal leading to lower efficiency
Solution Approach 1:
The flow field plate is divided into multiple recesses (first recess, second recess, third recess, fourth recess) that segment the gas flow path. Each recess creates a specific flow channel pattern that directs gas distribution across the membrane surface, improving productivity through better gas utilization while maintaining a relatively simple integrated plate structure.
Solution Approach 2:
The invention introduces a multi-dimensional flow distribution approach by creating recesses at different locations (border, surface, corners) that establish three-dimensional flow paths. This dimensional approach optimizes gas distribution across the membrane surface area, enhancing compression efficiency without significantly increasing structural complexity.
2Productivity
If the flow field plate uses a simple channel plan, then the manufacturing is easier, but the gas distribution and membrane surface utilization are not optimal
Solution Approach 1:
The channel plan is segmented into multiple distinct recesses positioned at specific locations (border, surface, corners) rather than using a single continuous channel. This segmentation optimizes membrane surface utilization by directing gas flow to multiple areas simultaneously, while each individual recess remains simple enough to manufacture using conventional techniques.
Solution Approach 2:
Different recesses are positioned at different locations (border, surface, corners) to create local variations in flow distribution. This local quality approach ensures optimal gas utilization across different regions of the membrane surface, with each recess tailored to its specific position, while maintaining manufacturability through standardized recess geometries.
3Reliability
If the flow field plate has high mechanical strength to withstand forces, then the reliability is improved, but the gas flow distribution may be restricted
Solution Approach 1:
The flow field plate uses multiple recesses that segment the gas flow into separate channels, allowing the plate structure to maintain mechanical strength through distributed support while enabling optimized gas flow distribution. The segmented approach prevents flow restriction by providing multiple parallel flow paths rather than a single constrained channel.
Solution Approach 2:
The recesses create three-dimensional flow paths within the plate structure, allowing gas to flow through multiple levels and directions. This dimensional approach maintains mechanical strength by distributing structural loads while providing adequate flow cross-sections to prevent restriction, thereby maintaining high gas flow rates.
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
Enhances gas flow rate and membrane surface utilization, improving compressor performance by optimizing gas distribution and reducing mechanical resistance.
Implementation Method 1
the essentially flat body is provided with recesses at both sides, the recesses at each side comprising a first set of parallel lanes, crossing a second set of parallel lanes
Implementation Method 2
solid-state compressors rely on the electrochemical transport of said fluid through a membrane using an ionic transport mechanism
Implementation Method 3
electrochemically move the ionized working fluid through the proton exchange membrane
Implementation Method 4
move the ionized working fluid through the proton exchange membrane (commonly known as a PEM) against the pressure gradient that exists across the membrane
Implementation Method 5
the essentially flat body is provided with through holes extending from the first surface to the second surface... the channel plan further decreases the mechanical resistance the gas undergoes
Data Source
AI summary
The present invention relates to a flow field plate for a solid state compressor cell, including an essentially flat body, having two opposite surfaces and an edge, provided with a channel plan for gas distribution, that extends from multiple locations at a border of the field plate to multiple locations at the surface of the essentially flat body wherein the essentially flat body is provided with recesses at both sides, the recesses at each side including a first set of parallel lanes, crossing a second set of parallel lanes.