Fuel Cell Compression Plate with Pressurized Fluid Container
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fuel cell modules face efficiency losses due to heat dissipation and varying compression pressures caused by expansion of components during operation, leading to inconsistent performance and increased maintenance needs.
Innovation Solution
A fuel cell module with a compression mechanism that utilizes a pressurized fluid container with a flexible casing to maintain constant pressure, using a single pressurized fluid source to adjust the compression plate's position relative to a support plate, ensuring uniform compressive forces and minimizing heat loss through insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external compression mechanisms such as air cylinders are coupled to fuel cells, then reliability and performance are increased, but heat is lost to the surrounding environment at the couplings
Solution Approach 1:
The compression mechanism is merged with the fuel cell module structure by integrating the pressurized fluid container and compression plate directly into the module assembly. This eliminates separate external couplings and their associated heat loss pathways, while maintaining compression functionality through the integrated design.
2Force
If bolts are used to maintain compression on fuel cells, then compression is applied, but the bolts and surrounding components expand during operation causing compression to vary
Solution Approach 1:
A pressurized fluid container with fluid under pressure is used to apply compression force through a compression plate. The fluid pressure system provides stable, controllable compression that compensates for thermal expansion of components, maintaining consistent compression force on the fuel cells during operation.
Solution Approach 2:
The compression mechanism uses fluid pressure as a controllable parameter to maintain stable compression. By regulating the pressure of the pressurized fluid, the system can compensate for dimensional changes in bolts and components due to thermal expansion, keeping compression force constant.
3Stability of the object's composition
If a pressurized fluid container with flexible casing is used to maintain constant pressure, then compression stability is improved, but device complexity increases
Solution Approach 1:
A flexible casing is used for the pressurized fluid container to allow volume changes while maintaining constant internal pressure. The flexible wall accommodates compression plate movement and thermal expansion of the container, providing pressure stability without requiring complex rigid mechanical adjustment mechanisms.
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 solution enhances the efficiency and reliability of fuel cell modules by maintaining consistent pressure and reducing heat loss, while also simplifying maintenance and reducing operational costs by using a single pressurized fluid source for multiple modules.
Implementation Method 1
The pressurized fluid source supplies pressurized fluid to the pressurized fluid container to maintain a substantially constant pressure within the internal space
Implementation Method 2
The casing includes at least one flexible wall and is configured to change a volume of the internal space such that the compression plate moves in relation to the support plate
Implementation Method 3
The compression plate is movable in relation to the support plate... positioned such that the compression plate contacts the fuel cell
Data Source
AI summary
An electric power generation system includes a fuel cell module. The fuel cell module includes a fuel cell and a compression plate. The compression plate includes a surface contacting the fuel cell. A support plate is opposite the compression plate. The compression plate is movable in relation to the support plate. A pressurized fluid container is disposed between the compression plate and the support plate. The pressurized fluid container includes a casing defining an internal space configured to contain pressurized fluid. The electric power generation system further includes a pressurized fluid source and a fluid line coupled to the pressurized fluid source and the pressurized fluid container.