Publications de Jan Van Herle | EPFL Graph Search

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

The aim of this project was to develop and implement an optimisation methodology that combines process thermo-modelling and process integration in a thermo-economic optimisation framework for fuel cells systems. During this project, a generic software has been developed to perform optimisation of integated energy systems. OSMOSE stands for “OptimiSation MultiObjectif de Systemes Energétiques intégrés” (MultiObjective Optimisation of Integrated Energy Systems). The developed approach and software have been u

A general procedure based on the oxalate coprecipitation route was developed to produce very sinterable ceria (CeO2) powder doped with Gd2O3, Sm2O3 or Y2O3. The method is simple, reliable and very reproducible. Without any milling step, powder of 20 mol% GdO1.5, SmO1.5 or YO1.5-CeO2 could be fired translucent dense (97% relative to theoretical) at 1300 °C (4 h) already, as pressed compacts. This compares to typical values of 95% relative density obtained after firing at 1500–1600 °C in the standard literatu

The Laboratory for Applied Mechanical Design (LAMD) designed, manufactured, and experimentally tested a novel recirculation fan for a 10 kWe solid oxide fuel cell (SOFC). The fan uses oil-free bearings, more specifically herringbone-grooved journal and spi ...

Cr contamination, generated by system components located upstream a solid oxide fuel cell (SOFC) and responsible for Cr-poisoning induced air electrode performance degradation, must be suppressed by hindering the access of Cr pollutants to the cathode comp ...

For low-emission, small-scale combined heat and power generation, integrating a biomass gasifier with a downstream solid oxide fuel cell system is very promising due to their similar operating conditions in terms of temperatures and pressures. This match a ...

State-of-the-art nickel-based SOFC anode-supported cells are highly sensitive to reoxidation of the metal phase at the temperature of utilization. This work presents results on redox stable nickel–YSZ (yttria- stabilized zirconia) anode-supported cells, fo ...

In this study, the poisoning effects of cerium oxide (CeO2) as the contaminant on the performance of proton exchange membrane fuel cells (PEMFCs) are evaluated. An experimental setup was developed to analyze the performance characteristic (I-V) curves in c ...

One of the major limitations of the nickel (Ni) - yttria-stabilized zirconia (YSZ) anode support for solid oxide fuel cells (SOFC) is its low capability to withstand transients between reducing and oxidizing atmospheres ("RedOx" cycle), owing to the Ni-to- ...

A novel setup has been designed and mounted to investigate the local electrochemical and thermal behavior of a cell from a 4-cell short stack under reversible operation solid oxide fuel cell/solid oxide electrolyzer (SOFC/SOE). It consists in the partition ...

While the global fuel utilization of solid oxide fuel cells (SOFCs) is limited by the stack aging rate, the fuel excess is typically used in a burner, and thus limiting the system electrical efficiency. Further, natural-gas-fueled SOFCs require treated wat ...

Strontium migration from the oxygen electrode to the interface between the electrolyte and interlayer was investigated in solid oxide cells in fuel cell (SOFC) and electrolysis (SOEC) modes. Four samples were imaged by focused ion beam scanning electron mi ...

Background: The electricity production market benefits from combined cycles with their high efficiency. In the lower power range, Fuel Cells are a good candidate to combine with gas turbines. Such systems can achieve efficiencies of 60% and more. High tem ...

Sample preparation and scanning electron microscopy imaging methods were developed to characterize solid-oxide fuel cell anodes made out of a nickel- yttria-stabilized zirconia porous cermet. The sample preparation uses only tripod polishing and does not r ...

Operating the cooling system of a methanation reactor using an open-loop two-phase thermosiphon with evaporating water as the cooling liquid is an effective way to ensure safe operation as it does not rely on a recirculating pump. The aim of the reactor de ...

Carbon capture and utilization are promising to tackle fossil-fuel depletion and climate change. CO2 hydrogenation can synthesize various chemicals and fuels, such as methanol, formic acid, urea, and methane. CO2-to-methanol integrated with solid-oxide ele ...

The characterization of solid oxide cells (SOCs) relies mainly on direct-current (DC) and alternating-current (AC) methods that provide only average surface electro-chemical responses. As such, the spatial distribution is not well captured and the complexi ...

Our SOFC stack development technology is based on the unique SOFConnexTM concept, using flexible gas distribution layers between metal sheet interconnect and thin ASE cells. Flexibility is given both in material and design. This ensures proper electrical c ...

A water and carbon dioxide co-electrolyser system (1) comprising an anion exchange membrane (AEM) electrolyser (2) having at least one AEM electrolyser cell (2c) comprising a cathode (8), an anode (12) and an AEM membrane (16) separating the cathode from t ...

Anion exchange membrane water electrolyzer flow field plate comprising a first flow entity configured to receive a fluid from at least one first flow entity fluid inlet and configured to communicate the fluid to at least one first flow entity fluid outlet; a second flow entity including at least one second flow entity fluid inlet and at least one second flow entity fluid outlet, the at least one second flow entity fluid inlet being configured to receive the fluid from the at least one first flow entity flui

Jan Van Herle

Chattez avec Graph Search

Energy Integration and System Modelling of Fuel Cell Systems

Low temperature fabrication of (Y,Gd,Sm)-doped ceria electrolyte

Theoretical and Experimental Investigation of a Small-scale, High-speed, and Oil-free Radial Anode Off-gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Mitigating Cr Contamination by Hot Air Filtering in Solid Oxide Fuel Cells

A High-Temperature, High-Speed, Oil-Free Syngas Compressor for Small-Scale Combined Heat and Power

Redox stable Ni–YSZ anode support in solid oxide fuel cell stack configuration

Poisoning Effects of Cerium Oxide (CeO2) on the Performance of Proton Exchange Membrane Fuel Cells (PEMFCs)

Design of experiment approach applied to reducing and oxidizing tolerance of anode supported solid oxide fuel cell. Part II: Electrical, electrochemical and microstructural characterization of tape-cast cells

Local electrochemical and thermal investigation of a segmented reversible solid oxide fuel cell and electrolyzer

Experimental characterization of a solid oxide fuel cell coupled to a steam-driven micro anode off-gas recirculation fan

Special Issue on Modeling and Experimental Validation of Fuel Cells, Batteries, and Electrolysers

Strontium Migration at the GDC-YSZ Interface of Solid Oxide Cells in SOFC and SOEC Modes

Thermo-economic Optimization of a Solid Oxide Fuel Cell, Gas Turbine Hybrid System

Rapid preparation and SEM microstructural characterization of nickel-yttria- stabilized zirconia cermets

Thermosiphon Cooling System for a Methanation Reactor: An Experimental Assessment

Techno-Economic Optimization of CO2-to-Methanol with Solid-Oxide Electrolyzer

Active Near-Infrared Imaging for Spatio-Temporal Monitoring of a Solid Oxide Cell in Operation

PROGRESS IN STACK POWER DENSITY USING THE SOFCONNEX™ CONCEPT

Co2 and h2o co-electrolyser system

Anion exchange electrolyzer flow field plate