Monolithic Fuel Processor with Integrated Burner and Reformer
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Solution Overview
Problem
Conventional hydrogen-producing fuel processing systems have inefficiencies due to separate components and low thermal conductivity materials, leading to increased design costs and reliability issues, as well as enhanced thermal management needs.
Innovation Solution
A monolithic body that integrates a burner conduit and a reforming conduit in a conductive heat exchange relationship, allowing for efficient heat transfer and reducing the number of components and potential leak points, with optional vaporizing conduits for efficient hydrogen gas production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional discrete components with steel alloy housings are used, then component reliability is maintained, but thermal efficiency deteriorates and manufacturing complexity increases
Solution Approach 1:
The patent merges the vaporizer housing, reformer housing, and burner housing into a single integrated monolithic structure. This consolidation eliminates multiple discrete components and their associated connections, reducing assembly complexity while maintaining structural integrity and reliability through a unified design.
Solution Approach 2:
The monolithic housing structure performs multiple functions simultaneously: it serves as the vaporizer housing, reformer housing, burner housing, and heat exchange medium. This multi-functionality reduces the number of separate components needed while maintaining all necessary operational functions, thereby reducing manufacturing complexity without sacrificing reliability.
2Strength
If steel alloy housings are used, then structural strength is maintained, but thermal conductivity deteriorates
Solution Approach 1:
The patent employs a monolithic housing structure made from a thermally conductive material that integrates multiple functional housings. This material choice prioritizes thermal conductivity over the traditional steel alloy selection, enabling efficient heat transfer from the burner to the vaporizer and reformer while maintaining sufficient structural strength for the application.
3Ease of manufacture
If separate components are used, then ease of manufacture is maintained, but thermal integration deteriorates
Solution Approach 1:
The patent combines multiple discrete housing components into a single monolithic structure that provides both mechanical housing and thermal exchange functions. This integration creates direct thermal pathways between the burner, vaporizer, and reformer, significantly improving thermal efficiency while the monolithic construction method maintains manufacturing feasibility through standardized production processes.
4Adaptability or versatility
If multiple discrete components are used, then adaptability is maintained, but system reliability deteriorates due to increased leak points
Solution Approach 1:
The patent integrates multiple housing functions into a single monolithic component, eliminating the connections and joints between separate vaporizer, reformer, and burner housings. This consolidation removes potential leak points and failure interfaces, thereby improving system reliability while the modular internal conduit design maintains operational adaptability.
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 design enhances thermal efficiency, reduces manufacturing complexity and costs, and improves reliability by effectively utilizing heat generated from combustion for hydrogen production, while minimizing thermal management challenges.
Implementation Method 1
a monolithic body that defines at least a reforming conduit, in which a feed stream is catalyzed into a reformate gas stream containing hydrogen gas as a primary component, and a burner conduit, in which a fuel-air stream is combusted. The monolithic body is constructed to conduct heat generated by the exothermic reaction within the burner conduit to the reforming conduit
Implementation Method 2
a burner conduit, in which a fuel-air stream is combusted. The monolithic body is constructed to conduct heat generated by the exothermic reaction within the burner conduit
Implementation Method 3
a reforming conduit, in which a feed stream is catalyzed into a reformate gas stream containing hydrogen gas as a primary component
Implementation Method 4
The monolithic body is constructed to conduct heat generated by the exothermic reaction within the burner conduit to the reforming conduit
Data Source
AI summary
Hydrogen-producing assemblies, fuel cell systems including the same, methods of producing hydrogen gas, and methods of powering an energy-consuming device. Hydrogen-producing assemblies may include a monolithic body that defines at least a reforming conduit, and in some embodiments a plurality of reforming conduits, in which a feed stream is catalyzed into a reformate gas stream containing hydrogen gas, and a burner conduit, in which a fuel-air stream is combusted. The monolithic body is constructed to conduct heat generated by the exothermic reaction of the combustion from the burner conduit to the reformer conduit. In some hydrogen-producing assemblies, the monolithic body further defines a vaporizing conduit, in which liquid portions of the feed stream are vaporized prior to being delivered to the reformer conduit, and the monolithic body may be constructed to conduct heat from the burner conduit to the vaporizing conduit.