Compact Hydrogen Refueling System for Fuel Cell Vehicles
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Summary
Problems
Conventional hydrogen refueling stations for fuel cell vehicles are large, complex, and expensive, requiring significant storage capacity and cooling systems, which is not well-suited for the differences in storage and dispensing of compressed hydrogen and the market needs of hydrogen fuel cell vehicles.
Innovation solutions
A compact hydrogen gas dispensing system that generates, compresses, and dispenses hydrogen using a stand-alone unit with a compressor, electrolyzer, and storage tanks, capable of storing hydrogen at a lower pressure for reduced cost and complexity, and boosting pressure as needed for dispensing, integrated with electric vehicle charging capabilities.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If conventional hydrogen refueling stations use large storage capacity to ensure continuous fuel availability, then fuel availability is improved, but system cost and footprint increase
Why choose this principle:
The system divides the storage function into two separate storage devices: a first storage device for storing hydrogen at a first pressure level, and a second storage device for storing hydrogen at a second pressure level. This segmentation allows each storage device to be smaller in capacity while collectively providing continuous fuel availability, thereby reducing the total footprint while maintaining reliability.
Principle concept:
If conventional hydrogen refueling stations use large storage capacity to ensure continuous fuel availability, then fuel availability is improved, but system cost and footprint increase
Why choose this principle:
The system adds a pressure dimension to the storage strategy by maintaining hydrogen at two different pressure levels. This allows the system to optimize storage capacity across different pressure states, reducing the volume required compared to single-pressure storage while ensuring continuous fuel supply at the required dispensing pressure.
Application Domain
Data Source
AI summary:
A compact hydrogen gas dispensing system that generates, compresses, and dispenses hydrogen using a stand-alone unit with a compressor, electrolyzer, and storage tanks, capable of storing hydrogen at a lower pressure for reduced cost and complexity, and boosting pressure as needed for dispensing, integrated with electric vehicle charging capabilities.
Abstract
According to at least one aspect, a hydrogen gas dispensing system is provided. The hydrogen gas dispensing system includes a source configured to provide a hydrogen gas, a storage device configured to store the hydrogen gas up to a first pressure level, a dispenser configured to dispense the hydrogen gas up to a second pressure level that is higher than the first pressure level, and a compressor configured to compress the hydrogen gas from the source up to the first pressure level for storage in the storage device and configured to compress the hydrogen gas from the storage device up to the second pressure level for dispensing via the dispenser. According to at least one aspect, the dispensing system comprises an input power port configured to receive input power and an output power port configured to deliver output power derived from the input power to charge an electric vehicle.