Two LOWCOST-IC workshops were held in Lucerne on July 5. 2022
Two workshops were held on mechanical integrity of SOFC stacks and on corrosion and protection of interconnects.
The workshops were held after a project meeting in the consortium and prior to the opening of the European Fuel Cell Forum conference in the same city, ensuring a high number of participants with interest in the project.There were around 30 participants in each workshop and they included both academic and industrial stakeholders from most of the European solid oxide cell stack manufacturers.
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Modelling of local mechanical failures in solid oxide cell stacks
In LOWCOST-IC a localisation principle for the mechanical response of the stack has been developed. Here a sub-model of a repeating element of a cell and interconnect inside the stack is modelled in parallel with the full stack model. First the overall stress distribution in the full stack model is determined. Secondly, the stresses from this is imposed as boundary conditions on a repeating element inside the stack and the local stresses can be estimated. Furthermore, it was shown that this mapping can be done analytically, such that the local stresses at a certain point and even the J-integral in the repeating element can be directly determined from the global stress distribution.
Miao, X. Y., Rizvandi, O. B., Navasa, M., & Frandsen, H. L. (2021). Modelling of local mechanical failures in solid oxide cell stacks. Applied Energy, 293, 116901. https://doi.org/10.1016/j.apenergy.2021.116901
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Meet us at EFCF 2020 – Workshop on mechanical robustness challenges
Given that Corona situation permits then meet us at the EFCF 2020 Conference, Lucerne, Switzerland. Here we will be throwing a workshop on how to address mechanical robustness challenges for SOFC stacks, and there will also be several contributions to the conference from the LOWCOST-IC project.
Planned talks:
- Henrik Lund Frandsen (DTU) - Multi-scale model to describe the local degradation and mechanical failures in an SOC stack
- Carlos Bernuy-Lopez (Sandvik) - Conditioning optimization in Sandvik Sanergy® HT 441 after the forming process
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Exceptionally high robustness of air electrode contact layer achieved
Exceptionally high robustness of air electrode contact layer achieved using reactive bonding. Using metallic pre-cursors for an in-situ formation of spinels through oxidation results in good interaction with surrounding interfaces and a robust contact layer.
Enhancing the Robustness of Brittle Solid Oxide Cell Stack Components
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LOWCOST-IC results were presented at ECS SOFC-XVI
The first results from LOWCOST-IC were presented at the ECS SOFC-XVI conference, Kyoto, Japan 2019. The contributions were
- Christian Walter (Sunfire) - Stack development and industrial scale-up
- Claudia Göbel (Chalmers) - The influence of different factors on the dual atmosphere effect
- Matthieu Tomas Chalmers) - Cu-based coatings for IT-SOFC applications
- Belma Talic (DTU) - Improved robustness and low area specific resistance with novel contact layers for the solid oxide cell air electrode
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Sunfire and SOLIDpower to build and test first SOFC stacks with Sandviks pre-coated “Sandvik Sanergy HT 441”.
30-layer Sunfire LOWCOST-IC ST1 stack
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LOWCOST-IC Kick-off meeting
On January 22.-23. 2019 the project was officially initiated with the Kick-off meeting. All partners were gathered at DTU where they were introduced to each other and to the details of the project work and EU rules and guidelines. Actions and procedures were discussed and planned.
