Solid State Hydrogen Storage Heat Circulation
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Solution Overview
Problem
Conventional solid hydrogen storing methods require complex structures and high manufacturing costs due to the need for separate heat exchangers, which complicates the storage and release of hydrogen and reduces energy efficiency.
Innovation Solution
A hydrogen storing method utilizing a heat circulation structure between a compression device and a storage device, both equipped with solid state hydrogen storage materials, where heat generated during storage is reused to facilitate efficient hydrogen release, and vice versa, through a closed fluid flow path loop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate heat exchanger is used for storing or releasing hydrogen in solid hydrogen storage material, then hydrogen storage and release can be achieved, but the structure becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent combines the heat exchanger and hydrogen storage material into a single integrated component. The heat exchanger is filled with solid hydrogen storage material, allowing heat transfer and hydrogen storage functions to be performed simultaneously within the same structure, thereby eliminating the need for separate components and reducing overall system complexity
Solution Approach 2:
The integrated component serves multiple functions: it acts as both a heat exchanger for thermal management and a hydrogen storage device. The solid hydrogen storage material within the heat exchanger enables the component to perform heat transfer, hydrogen absorption, and hydrogen release functions, reducing the total number of components needed in the system
2Temperature
If a separate heat exchanger is used for hydrogen storage material, then thermal management is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the heat exchanger and hydrogen storage material into a single integrated component. This consolidation reduces the total number of parts that need to be manufactured, assembled, and installed, thereby lowering manufacturing costs while maintaining effective thermal management capability
Solution Approach 2:
The integrated component performs multiple functions including heat exchange and hydrogen storage, eliminating the need for separate dedicated components. This multi-functionality reduces bill of materials costs, assembly costs, and maintenance costs, making the system more economically viable
3Device complexity
If high pressure gas storage method is used, then storage density per unit volume is low, but the structure is simple
Solution Approach 1:
The patent changes the storage mechanism from physical compression (high pressure gas) to chemical bonding (solid state hydrogen storage). By using solid hydrogen storage materials that form chemical bonds with hydrogen, the system achieves much higher storage density while operating at lower pressures, thus improving both storage capacity and safety
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 method significantly improves energy efficiency by effectively reusing heat generated during the storage and release processes, reducing the need for external heat exchangers and lowering manufacturing costs while maintaining high storage density at relatively low pressures.
Implementation Method 1
solid state hydrogen storage materials that cause an exothermic reaction when hydrogen is stored and an endothermic reaction when hydrogen is released
Implementation Method 2
solid state hydrogen storage materials that cause an exothermic reaction when hydrogen is stored and an endothermic reaction when hydrogen is released
Implementation Method 3
transferring heat generated from the storage device to the compression device
Implementation Method 4
Heat may be exchanged between the compression device and the storage device through a fluid flowing through a closed flow path loop installed between the compression device and the storage device
Data Source
AI summary
Disclosed is a hydrogen storing method having improved energy efficiency by efficiently reusing heat through a heat circulation structure. Specifically, the hydrogen storing method includes supplying hydrogen by the supply device, compressing hydrogen received from the supply device by a compression device, receiving the hydrogen compressed by the compression device and storing the same in a storage device, and transferring heat generated from the storage device to the compression device, wherein the compression device and the storage device each include solid state hydrogen storage materials that cause an exothermic reaction when hydrogen is stored and an endothermic reaction when hydrogen is released.