HySchool Webinar #12: Alicia San Martin Rueda (NTNU) & Lucas Cammann (NTNU)
The next HySchool Webinar will take place on Teams at 13:00 CET on 21 October 2025. This webinar will feature PhD-candidates Alicia San Martin Rueda and Lucas Cammann from NTNU. Each will deliver a 15-minute presentation followed by a Q&A session on their respective topics.
Alicia San Martin Rueda
PhD candidate at NTNU
NH₃ as a hydrogen alternative for solid oxide fuel cells
Ammonia is a promising hydrogen carrier that can overcome the limitations of storing and transporting hydrogen. It can be used directly as a fuel in solid oxide fuel cells (SOFCs), providing a carbon-free method of producing electricity. The performance of SOFCs depends heavily on the materials used for their components. LaSrCoFeO3-based perovskites (LSCF) have been proposed as promising anode and cathode catalysts due to their wide range of tunable electrical, thermal, and catalytic properties. In addition, perovskites enhance ammonia oxidation to NO, enabling SOFCs to co-produce power and valuable chemicals. However, their performance and structural transformations during ammonia oxidation remain unexplored. In-situ characterization would greatly improve our understanding of the behaviour of these catalysts.
Lucas Cammann
PhD candidate at NTNU
Gas-purity control in alkaline water electrolyzers under storage and pressure constraints – a systematic case study
The flexibility of alkaline water electrolyzers is limited by requirements on the gas purity (hydrogen in oxygen) to avoid the creation of explosive gas mixtures. To increase operational flexibility, recent works have proposed to control the gas purity by adjusting the lye recirculation rate and the system pressure. These approaches assume that the pressure can be freely set in a given range, which may not be a valid assumption. If the produced gas is stored on-site, the pressure in the electrolyzer is coupled to the pressure in the storage tank. Depending on the size of the gas storage and constraints on the compression equipment, it may then not be possible to set the pressure freely. In this presentation, we present a model predictive control (MPC) implementation for alkaline water electrolyzers with such constraints. We test the system controlled by MPC against historic wind power data with different demand profiles and storage sizes. Our results show that MPC is effective at simultaneously handling gas purity and storage constraints. However, small storage sizes can reduce the range in which the pressure can be used to control the hydrogen-to-oxygen ratio, leading to flexibility bottlenecks that were previously unaccounted for.
Microsoft Teams
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Meeting ID: 375 025 801 889 0
Passcode: UW9ae9F3
HySchool
HySchool - Norwegian Research School on Hydrogen and Hydrogen-Based Fuels is a thematically oriented research school where doctoral candidates from all universities and university colleges in Norway can be admitted. The main requirement for admittance to the research school is that important parts of the doctoral project address issues related to hydrogen and hydrogen-based fuels as energy carriers in industry and society.
Academic partners:
University of Oslo (UiO)
University of Bergen (UiB)
University of Tromsø (UiT)
University of Stavanger (UiS)
University of South-East Norway (USN)
Norwegian University of Life Sciences (NMBU)
Norwegian University of Science and Technology (NTNU)
Industry partners:
Equinor
Institute for Energy Technology (IFE)