Hydrogen Generator Cartridge With Solid Heat Transfer Members
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Solution Overview
Problem
Existing hydrogen generators face challenges in producing a large volume of hydrogen gas per unit of mass and volume, while being inexpensive, safe, and durable, with the ability to control hydrogen supply and operate at desired temperatures.
Innovation Solution
A hydrogen generator design featuring a replaceable cartridge with pellets containing hydrogen-releasing materials, solid heat transfer members, and a controlled heating system to initiate hydrogen release, allowing for efficient heat transfer and selective heating of pellets to produce hydrogen gas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrogen containing materials are used to produce hydrogen gas, then the volume of hydrogen produced per unit of mass and volume increases, but the complexity of controlling hydrogen release and maintaining safety increases
Solution Approach 1:
The hydrogen generator is divided into modular components: a replaceable cartridge containing hydrogen-containing material, a housing with heating elements, and a control system. This segmentation allows independent optimization of each component and simplifies the overall control mechanism by separating the hydrogen storage function from the activation function.
Solution Approach 2:
A heat transfer member is introduced as an intermediary between the heating element and the hydrogen-containing material. This mediator enables controlled thermal energy transfer, allowing precise control over hydrogen release timing and rate without direct contact between the heating element and reactants, thereby simplifying safety control.
2Ease of operation
If heating elements are used to initiate hydrogen release, then the ability to control hydrogen supply on an as needed basis improves, but the risk of unintended heating and safety hazards increases
Solution Approach 1:
The heat transfer member serves as a controlled intermediary that mediates thermal energy transfer from the heating element to the hydrogen-containing material. This intermediate layer provides thermal isolation during non-operational states, preventing unintended heating, while enabling controlled heat transfer when hydrogen release is desired, thus maintaining safety without compromising operational control.
Solution Approach 2:
The system incorporates safety features including a heat transfer member that provides thermal buffering, and a cartridge design that contains the hydrogen-containing material in a sealed environment. These precautions are built into the system architecture before operation, cushioning against potential safety hazards while enabling controlled operation.
3Productivity
If solid heat transfer members are used to conduct heat from the casing to the hydrogen containing material, then the efficiency of heat transfer and hydrogen production increases, but the manufacturing complexity and cost increase
Solution Approach 1:
The cartridge containing the hydrogen-containing material and heat transfer member is designed as a disposable or replaceable unit. This approach allows the use of optimized heat transfer components without penetrating the permanent casing, simplifying manufacturing of the main housing while maintaining high heat transfer efficiency in the replaceable cartridge assembly.
Solution Approach 2:
The heat transfer member is positioned in direct contact with the hydrogen-containing material in the specific location where heat transfer is most critical. This localized optimization of heat transfer capability achieves high hydrogen production efficiency without requiring complex thermal management systems throughout the entire device.
4Ease of operation
If the cartridge is designed to be removably inserted into the compartment, then the ease of replacing consumed reactant materials improves, but the sealing and thermal contact reliability may deteriorate
Solution Approach 1:
The cartridge is pre-assembled with the heat transfer member in direct contact with the hydrogen-containing material before insertion into the housing. This preliminary configuration ensures that thermal contact is established during the assembly process, and the cartridge design includes features such as contact surfaces or alignment mechanisms that maintain reliable thermal connection upon insertion, thereby ensuring operational reliability without compromising ease of replacement.
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 effectively produces a large volume of hydrogen gas efficiently, is safe and durable, and allows for controlled hydrogen supply, meeting the requirements of fuel cell systems while being cost-effective and reliable.
Implementation Method 1
solid heat transfer members, each in direct contact with but not penetrating the casing and capable of conducting heat from the casing to the at least one hydrogen containing material
Implementation Method 2
a plurality of heating elements disposed within the housing, such that when the cartridge is disposed within the cavity each heating element is in contact with an outer surface of the cartridge casing and disposed so that heat can be conducted from the heating element, through the casing and to a heat transfer member
Implementation Method 3
Some hydrogen containing compounds can be heated to evolve hydrogen in a chemical decomposition reaction
Implementation Method 4
hydrogen gas can be evolved when a hydrogen containing material reacts... A hydrogen containing compound can react with another reactant to produce hydrogen gas, when the reactants are mixed together, in the presence of a catalyst, heat or an acid
Data Source
AI summary
A hydrogen generator and a fuel cell system including a fuel cell battery and the hydrogen generator. The hydrogen generator includes a cartridge, a housing with a cavity to removably contain the cartridge, and an initiation system. The cartridge includes a casing; a plurality of pellets including a hydrogen containing material; a plurality of solid heat transfer members in contact with but not penetrating the casing; a hydrogen outlet in the casing; and a hydrogen flow path from each pellet to the hydrogen outlet. A plurality of heating elements is disposed inside the housing. When the cartridge is in the cavity, each heating element is disposed so heat can be conducted from the heating element and through the casing and corresponding heat transfer member to initiate the release of hydrogen gas. The initiation system can selectively heat one or more pellets to release hydrogen gas as needed.