On-Demand Hydrogen Generator Using Reactive Metal Encapsulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrochemical cells require large hydrogen gas storage tanks for extended operation, which are cumbersome and inefficient.
Innovation Solution
A gas generator system that encapsulates reactive metal particles in a non-reactive or soluble shell, which is fractured or dissolved in turbulent water to produce hydrogen, which is then cooled and purified for use in electrochemical cells, eliminating the need for storage tanks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If large hydrogen gas storage tanks are used for extended operation of electrochemical cells, then the duration of action is improved, but the device complexity and volume increase
Solution Approach 1:
The hydrogen storage system is segmented into multiple small encapsulations containing reactive metal particles, each encapsulation being individually fractured and reacted with water to produce hydrogen on-demand, replacing the single large storage tank approach
Solution Approach 2:
The system changes the state of hydrogen from stored gaseous form in large tanks to generated form through chemical reaction of reactive metal particles with water, transforming the storage problem into a generation problem with smaller footprint
2Productivity
If reactive metal particles are released from encapsulation and mixed in turbulent water to generate hydrogen, then the productivity is improved, but the temperature increases requiring cooling
Solution Approach 1:
The exothermic heat generated by the reactive metal-water reaction, which initially appears as a harmful effect requiring cooling, is utilized to maintain reaction temperature and drive the hydrogen generation process, with excess heat managed through controlled water injection and cooling systems
3Reliability
If the shell is made non-reactive with water to protect reactive metal particles, then the reliability is improved, but the shell must be fractured requiring additional energy and complexity
Solution Approach 1:
The shell is designed with non-uniform properties - strong and non-reactive in most areas to protect the reactive metal particles, but with localized weak points or fracture zones that allow controlled breaking when subjected to mechanical stress from the ram, enabling reliable protection during storage and controlled release during operation
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
Provides a compact, efficient, and stable source of hydrogen gas for electrochemical cells, reducing the need for large storage tanks and enhancing operational efficiency.
Implementation Method 1
reacting the reactive metal particles in the turbulent water to generate hydrogen
Implementation Method 2
cooling the turbulent water and the hydrogen with water jets
Data Source
AI summary
A process of generating a gas includes providing an encapsulation of reactive metal particles, releasing the reactive metal particles from the encapsulation, mixing the reactive metal particles in turbulent water, reacting the reactive metal particles in the turbulent water to generate hydrogen, cooling the turbulent water and the hydrogen with water jets, separating solids and liquids from the hydrogen, and providing the hydrogen to an electrochemical cell.