Rectangular Fuel Cell Module Layout for Compact Auxiliary Packaging
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Solution Overview
Problem
Existing fuel cell systems face challenges with increased size and cost due to large auxiliary machines, difficulty in accommodating them in limited spaces, and inefficient use of installation space.
Innovation Solution
A fuel cell system with a rectangular parallelepiped shape, incorporating a frame that supports power generation modules, fuel and oxidant gas supply systems, and a heat-insulating module case, allowing for reduced sizes of auxiliary components and efficient space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple cell stacks are disposed side by side in a matrix to form modules, then power generation capacity is improved, but the size of auxiliary machines increases and cost increases
Solution Approach 1:
The patent divides the fuel cell system into multiple independent power generation modules, each with its own auxiliary machines. This segmentation allows each auxiliary machine to serve a single module rather than multiple modules, reducing the size of each auxiliary machine while maintaining total power generation capacity through parallel operation of multiple modules.
2Power
If auxiliary machines are disposed in units of modules, then power generation capacity is improved, but the size of housing increases due to dead space
Solution Approach 1:
The patent segments the housing into multiple compartments, each accommodating a power generation module and its auxiliary machines. This segmentation allows for more efficient space utilization by assigning specific volumes to each module, reducing overall dead space compared to a single large housing containing all components.
3Strength
If a cylindrical shape is used for the fuel cell system, then structural integrity is improved, but installation space is not reduced
Solution Approach 1:
The patent inverts the conventional cylindrical design by adopting a rectangular parallelepiped shape for the housing. This inversion allows the system to better utilize installation space by aligning with standard rectangular mounting configurations, while the internal modular arrangement maintains structural integrity through distributed support structures.
4Volume of stationary object
If the size of auxiliary machines is reduced to downsize the system, then housing size is reduced, but the complexity of accommodating components in limited space increases
Solution Approach 1:
The patent reduces system complexity by segmenting components into modular units with dedicated spaces. Each power generation module includes its own auxiliary machines housed in separate compartments, simplifying the overall accommodation strategy compared to trying to fit all reduced-size components into a single undifferentiated space.
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 system achieves downsizing and cost reduction by accommodating auxiliary components in a limited space, improving maintainability and efficiency through individual control of gas supply, and enhancing power generation output.
Implementation Method 1
a plurality of power generation modules each including a fuel cell stack that generates power using fuel gas and oxidant gas
Implementation Method 2
a heat-insulating module case that accommodates the fuel cell stack
Data Source
AI summary
A fuel cell system includes a fuel cell unit having a substantially rectangular parallelepiped shape, the fuel cell unit including:a plurality of power generation modules each including a fuel cell stack that generates power using fuel gas and oxidant gas, and a heat-insulating module case that accommodates the fuel cell stack;a plurality of fuel supply systems including a plurality of fuel supply lines that supply the fuel gas to each of the plurality of power generation modules;a plurality of oxidant gas supply systems including a plurality of oxidant gas supply lines that supply the oxidant gas to each of the plurality of power generation modules; anda frame to which the plurality of power generation modules, the plurality of fuel supply systems, and the plurality of oxidant gas supply systems are fixed.