Hydrogen Carrier Thickness Control for Stable Hydrogen Generation
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Solution Overview
Problem
Existing hydrogen generation systems using sodium borohydride as a hydrogen carrier face issues with uneven reaction progress due to uneven thickness of the carrier on conveyance members, leading to reduced hydrogen yield and efficiency.
Innovation Solution
A hydrogen generation apparatus with a conveyance member, application apparatus, ejection apparatus, hydrogen collection apparatus, and byproduct collection apparatus, along with a hydrogen carrier regulated amount maintaining portion, ensures uniform application and reaction of a solid hydrogen carrier with a water-containing solution, allowing continuous and stable hydrogen production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the hydrogen carrier is applied on the conveyance member without thickness control, then the application process is simple, but the reaction progress becomes uneven leading to reduced hydrogen yield
Solution Approach 1:
The system employs a thickness detection apparatus to measure the thickness of the hydrogen carrier layer on the conveyance member, and a control apparatus that receives this detection signal to regulate the supply amount. This feedback mechanism ensures the hydrogen carrier is applied at a uniform, optimal thickness, resolving the contradiction between simple application and efficient hydrogen generation.
Solution Approach 2:
The control apparatus dynamically adjusts the supply amount parameter of the hydrogen carrier based on detection signals to maintain optimal thickness. By changing this parameter in real-time, the system achieves uniform application that maximizes reaction efficiency while maintaining operational simplicity.
2Ease of operation
If the hydrogen carrier supply amount is not regulated, then the system operation is simple, but the reaction uniformity deteriorates
Solution Approach 1:
The system uses automatic detection and control mechanisms where the thickness detection apparatus continuously monitors the hydrogen carrier layer and the control apparatus automatically adjusts supply parameters. This self-regulating system maintains reaction uniformity without requiring manual intervention, preserving operational simplicity while ensuring composition stability.
Solution Approach 2:
The control apparatus receives feedback from the thickness detection apparatus and automatically regulates the hydrogen carrier supply. This closed-loop feedback system maintains consistent reaction conditions and uniformity without adding operational complexity for the user.
3Manufacturing precision
If a thickness detection apparatus and control apparatus are added, then the hydrogen carrier application uniformity is improved, but the device complexity increases
Solution Approach 1:
The system replaces manual thickness control with automated detection and control mechanisms. The thickness detection apparatus (using optical or other non-contact methods) and control apparatus substitute for complex mechanical adjustment mechanisms, achieving precise thickness uniformity through electronic control rather than mechanical means.
Solution Approach 2:
The control apparatus regulates the supply amount by changing operational parameters based on detection signals. This parameter-based control approach achieves manufacturing precision through software/control logic rather than complex mechanical precision mechanisms.
4Device complexity
If the hydrogen carrier is not continuously replenished, then the system structure is simpler, but the continuous hydrogen production is compromised
Solution Approach 1:
The replenishment container and supply mechanism ensure continuous supply of hydrogen carrier to the conveyance member, maintaining uninterrupted hydrogen generation. The control apparatus coordinates the replenishment process to occur seamlessly, ensuring the useful action of hydrogen production continues without interruption while managing system complexity through automated control.
Solution Approach 2:
The replenishment container stores hydrogen carrier in advance, and the control apparatus manages the timing and amount of replenishment before the carrier is depleted. This preliminary preparation and timed replenishment ensure continuous operation without requiring complex real-time intervention or frequent manual refilling.
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 apparatus enables continuous, stable, and long-term hydrogen generation with improved energy efficiency by maintaining uniformity in the reaction process, reducing the need for frequent refueling and optimizing hydrogen yield.
Implementation Method 1
generates hydrogen by hydrolysis of the sodium borohydride
Data Source
AI summary
A hydrogen generation apparatus applies a solid hydrogen carrier on a surface of a conveyance member by an application apparatus, and ejects a solution containing water onto the hydrogen carrier applied on the surface by an ejection apparatus. Then, hydrogen generated by a reaction between the hydrogen carrier and the solution on the surface is collected by a hydrogen collection apparatus. A byproduct generated by the reaction between the hydrogen carrier and the solution on the surface is collected by a byproduct collection apparatus. A hydrogen carrier regulated amount maintaining portion adjusts the replenishment amount of the hydrogen carrier from a replenishment container to a storage portion of the application apparatus to maintain the hydrogen carrier in the storage portion within a predetermined range.