Publication
Active Near-Infrared Imaging for Spatio-Temporal Monitoring of a Solid Oxide Cell in Operation
Publications associées (36)
Effects of impurities and local behavior characterization using active thermography on solid oxide electrolysis cells
Ambitious policies are needed from every country to drastically curtail the anthropogenic emission of greenhouse gases responsible for the on-going modification of the earth's climate. A quick transition towards a society fully based on renewable materials ...
EPFL2021The effect of SO2 on the Ni-YSZ electrode of a solid oxide electrolyzer cell operated in co-electrolysis
Jan Van Herle, Stefan Diethelm, Guillaume Jeanmonod
In this work, the effect of sulphur poisoning of the Ni-YSZ electrode of an SOEC operated in co-electrolysis mode was investigated. Short-term tests with exposure up to 5 ppmv of SO2 were performed at OCV and under polarization (0.25 A cm−2). The two-stage ...
2020Variable-stiffness tensegrity spine
Dario Floreano, Davide Zappetti, Enrico Ajanic, Roc Arandes Vilagrasa
Vertebrates, including amphibians, reptiles, birds, and mammals, with their ability to change the stiffness of the spine to increase load-bearing capability or flexibility, have inspired roboticists to develop artificial variable-stiffness spines. However, ...
2020Beyond Phasors: Modeling of Power System Signals Using the Hilbert Transform
Mario Paolone, Asja Derviskadic, Guglielmo Frigo
Modern power systems are at risk of largely reducing the inertia of generation assets and prone to experience extreme dynamics. The consequence is that, during electromechanical transients triggered by large contingencies, transmission of electrical power ...
2019Harmonic Phasor Measurements in Real-World PMU-Based Acquisitions
Mario Paolone, Asja Derviskadic, Guglielmo Frigo
Modern distribution networks prove to be easily prone to power quality issues, and in particular to the presence of harmonic. components in the voltage and current signals, due to the increasing presence of nonlinear loads, distributed generation, and rene ...
IEEE2019Sampling the Multiple Facets of Light
The theme of this thesis revolves around three important manifestations of light, namely its corpuscular, wave and electromagnetic nature. Our goal is to exploit these principles to analyze, design and build imaging modalities by developing new signal proc ...
EPFL2018Compact and General Strategy for Solving Current and Potential Distribution in Electrochemical Cells Composed of Massive Monopolar and Bipolar Electrodes
Hubert Girault, Alejandro Nicolás Colli
A compact, fast and general algorithm based on Dirichlet boundary conditions for the potential field is derived to enable the calculation of local current distribution, shunt currents and the local potential distribution on massive electrodes in electroche ...
2017A high sensitivity, low noise and high spatial resolution multi-band infrared reflectography camera for the study of paintings and works on paper
Background: Infrared reflectography (IRR) remains an important method to visualize underdrawing and compositional changes in paintings. Older IRR camera systems are being replaced with near-infrared cameras consisting of room temperature infrared detector ...
Biomed Central Ltd2017Combined Experimental-Numerical Analysis of Transient Phenomena in a Photoelectrochemical Water Splitting Cell
Sophia Haussener, Mikaël Dumortier
A combined experimental-numerical approach was used to study transient phenomena occurring in a photoelectrochemical cell using a membrane-separated porous TiO2-based photoanode and a dark Pt-based cathode. The effects of three parameters (pH in the anodic ...
American Chemical Society2016Electrochemical Model of a Triode Solid Oxide Fuel Cell
Jan Van Herle, Stefan Diethelm, Arata Nakajo, Priscilla Caliandro
A Triode Solid Oxide Fuel Cell is a novel cell architecture that consists of two circuits: an auxiliary circuit, operated in electrolysis mode, and a conventional main fuel cell circuit. During triode operation, performance enhancement can be expected espe ...
2015