Universal Tubular SOFC Testing Kit for Reproducible Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current testing protocols for tubular solid oxide fuel cells (SOFCs) are expensive, unreliable, and fail to provide reproducible results, limiting their effectiveness for new developers and hindering the transition from single cell to stack designs, thus fragmenting development efforts and preventing a sustainable business model for SOFC technology.
Innovation Solution
A universal testing device for tubular SOFCs that includes a tubular housing with inlet and outlet apertures, caps with ports, and a heating tube, allowing for fluid communication and heating of the SOFC, along with a current collector for electrical contact, facilitating testing and comparison of new materials under controlled conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glass seals or ceramic seals are used in current tubular SOFC test setups, then the SOFC can be sealed for testing, but the seals are destructive and alter the SOFC, preventing retesting or use in stacks
Solution Approach 1:
The patent employs disposable sealing elements (such as alumina discs with through-holes or ceramic foams) that are inexpensive and can be easily replaced. These sealing elements are designed to be used once and then discarded, eliminating the need to preserve the SOFC for future use. The low cost and ease of replacement allow the SOFC to be retested multiple times with different sealing elements, maintaining adaptability while ensuring reliable sealing during each test.
2Ease of operation
If button cell test setups are used, then testing can be performed, but the results are not reproducible in large scale cells and the testing is very expensive
Solution Approach 1:
The patent describes a universal test setup that can accommodate different SOFC configurations and sizes. The apparatus includes removable sealing elements and flexible fixture designs that allow the same basic testing apparatus to be used for both button cells and large-scale tubular SOFCs. This universality ensures that testing protocols and results can be consistently applied across different cell types, improving result reproducibility while maintaining ease of operation.
3Ease of manufacture
If current SOFC testing protocols are used, then basic materials research can be conducted, but the protocols are expensive and fail to provide real-life testing conditions for operable SOFCs
Solution Approach 1:
The patent enables testing under varied operational parameters including different temperatures, gas flows, and electrical loads that mimic real-life SOFC operating conditions. The test apparatus is designed to accommodate these parameter changes while maintaining controlled experimental environments. This allows researchers to transition from basic materials characterization to applied performance testing without changing the fundamental testing platform, making real-life testing conditions accessible while maintaining research capability.
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 device provides a cost-effective, reliable, and easy-to-use solution for testing tubular SOFCs, enabling the evaluation of new materials and operating conditions, supporting the development of stacking capabilities and manufacturing methods, and allowing for quick performance comparisons, thus overcoming the limitations of existing testing protocols.
Implementation Method 1
a heating tube defining an opening, and including a heater port that is disposed through a wall of the heating tube, with the opening and the heater port in fluid communication with an elongated heating cavity defined by the heating tube
Implementation Method 2
Solid oxide fuel cells, hereinafter referred to as SOFC(s), can directly operate on hydrogen as well as syngas
Data Source
AI summary
A testing device for tubular solid oxide fuel cells (SOFC) includes a housing within which the tubular SOFC is mounted. The housing includes suitable inlets and outlets to allow a fuel gas, such as hydrogen, and an oxidant, such as air or oxygen, to interact with the anode and cathode of the tubular SOFC. In addition, the housing is formed of suitable material for placement in a heating device, such as a tubular furnace or a miniature tubular heater. A temperature sensor and computing device may monitor the temperature of the tubular SOFC in order to control the operation of the tubular heating device. In addition, the device provides electrical current collectors for coupling to the anode and cathode of the SOFC, which may be removable and reusable.