Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 20 for “"Solid oxide electrolysis"”.
-
Co-electrolysis of simulated coke oven gas using solid oxide electrolysis cell technology
… impurities (H2S and phenol) in the means of co-electrolysis using a commercially available anode supported solid oxide cell (SOC). SOCs are highly efficient electrochemical energy conversion devices that can potentially reduce greenhouse gas emissions and utilise complex gas mixtures in means of …
-
Fluid Sealing Challenges in Solid Oxide Electrolysis Cells and Rapid Swap Battery Systems
… design spaces crucial to the implementation of solid oxide hydrogen generation. Due to the high operating temperatures (600°C - 800°C), seal materials commonly used in other applications are inadequate and glass or vermiculite based seals must be used. The delicateness of these seals makes them …
-
Steam Electrolysis Coupled with CO2 Conversion in a Pressurized Proton Conducting Solid Oxide Electrolysis Cell
Development of proton conducting solid oxide electrolysis cells (H-SOECs) for steam electrolysis coupled with the conversion of CO2 into fuels is a promising strategy for mitigating global warming. The aim of this research was to design and test a pressurized H-SOEC with an active Fischer-Tropsch …
-
Investigation of a novel high temperature solid oxide electrolyzer for solar hydrogen production
… hydrogen production based on high temperature Solid Oxide Electrolysis Cells. Therefore, a set of experiments are designed to develop and select the most promising materials and configurations. Furthermore, the study includes a design of a novel testing station built to accommodate the various …
-
System modeling, design, and control of the Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) and implications for atmospheric ISRU processing plants
… significant indigenous resources. The carbon dioxide that comprises nearly 96% of the Martian atmosphere can be utilized to produce oxygen for propulsion and life support systems. The Mars Oxygen ISRU Experiment (MOXIE) is a payload being developed by NASA for the Mars 2020 mission. MOXIE will …
-
Multi-Objective System Optimization of a Mars Atmospheric ISRU Plant
… oxygen with greater than 99.6% purity through solid oxide electrolysis. MOXIE is a small fraction of the scale that would be necessary to produce oxygen for use as a propellant for a human Mars mission, assuming that the empty oxygen tank on a Mars ascent vehicle would be filled from a …
-
Adaptive Oxygen Production of the Mars Oxygen ISRU Experiment (MOXIE) though Feedback Control of Pressure Sensor 4
… Oxygen on the surface of Mars by means of Solid Oxide Electrolysis from atmospheric Carbon Dioxide. This work builds on the mission goals of MOXIE, which runs only intermittently and with much manual planning for each run, to develop control algorithms that will lay the foundation for fully …
-
Technical, economic, and environmental assessment of liquid jet fuel production on aircraft carriers
… for three technology pathways: Alkaline electrolysis and the reverse water gas shift (AE+RWGS), solid oxide electrolysis and RWGS (SOEC+RWGS), and co-electrolysis of steam and CO₂. They are evaluated within two scenarios: a small infrequently operating plant leveraging excess nuclear …
-
Composition sensors calibration and characterization and warmup analysis for the Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE)
… O₂ from CO₂ in the Martian atmosphere using solid oxide electrolysis (SOE). In order to inform and control its system, MOXIE has a set of temperature, pressure, and composition sensors that measure its internal gas flows. The four composition sensors are commercial off-the-shelf (COTS) …
-
Optimization of a Hydrogen Alternative Aviation Fuel Supply Chain Under Demand and Emissions Constraints - A Case Study of Canada
… emerged: one with 556 polymer-exchange-membrane-electrolysis (PEM), 4 Nuclear-Solid Oxide Electrolysis (SOE), and 2 Steam Methane Reforming Carbon Capture and Storage (SMR-CCS) plants, and another with 24 Alkaline Electrolysis (AE), 7 Nuclear-SOE, and 6 SMR-CCS plants. The 2080 net-zero solution …
-
Analysis of hydrogen-based energy storage pathways
… of hydrogen generation (PEM, alkaline or solid oxide electrolysis), storage (compression, liquefaction or methanation), transportation (trailer or pipeline) and utilization (PEMFC, SOFC or combined cycle gas turbine). All processes are simulated with respect to their full and part-load …
-
Stability of double perovskite cathodes under high humidity for solid oxide fuel cells
Solid Oxide Fuel Cells (SOFCs) can directly convert a wide variety of fuels to electricity efficiently. They can also be run in reverse as Solid Oxide Electrolysis Cells (SOECs) to produce hydrogen (and carbon-containing fuels) from electrolysis of water (and carbon dioxide). However, the kinetics …
-
Laboratory Characterization of Mars In-Situ Resource Utilization (ISRU) using the Mars Oxygen ISRU Experiment (MOXIE) FlatSat Testbed
… demonstrating the production of oxygen through solid oxide electrolysis of carbon dioxide in the Martian atmosphere. MOXIE has successfully generated oxygen on Mars 14 times since landing in February 2021 and will continue to demonstrate oxygen production during night and day throughout all …
-
Steady-State and Transient Thermal Modeling of Solid Electrolysis (SOXE) within the Mars Oxygen In-Situ Resource Utilization Experiment
… oxygen (O2) out of the abundant carbon dioxide (CO2) that makes up a majority of the Martian atmosphere. Accurate and high fidelity modelling of internal temperatures of the Solid Oxide Electrolysis (SOXE) stack are crucial to understanding operational performance of MOXIE. Weight, energy, …
-
System modeling, graphical user interface development, and sensors testing for the Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE)
… produce greater than 99.6% pure oxygen through solid oxide electrolysis. MOXIE is roughly 0.5% of the scale that would be necessary to produce oxygen for breathing and use as a propellant for a human Mars mission. Tests are being performed on MOXIE in the laboratory at NASA's Jet Propulsion …
-
Understanding and Controlling the Surface Chemistry of Oxides to Enhance Catalytic Activity at Elevated Temperatures
Oxides have been extensively used as high temperature catalysts in electrochemical devices and for gas conversion reactions, including solid oxide fuel cells (SOFC), solid oxide electrolysis cells (SOEC), ethane cracking, CO oxidation, and the oxidative coupling of methane. In hightemperature …
-
A prospective comparative lifecycle assessment for green and grey hydrogen production and utilisation in the South African context
… investigated for hydrogen production are water electrolysis powered by wind, solar PV or concentrated solar power, steam methane reforming, and water electrolysis powered by a 2040 grid electricity mix. Furthermore, the impacts of three available electrolysis technologies; viz. polymer …
-
Utilisation of biomass-derived gaseous fuels using solid-oxide fuel cells
Solid oxide fuel cells (SOFCs) are highly efficient electrochemical energy conversion devices that can potentially reduce greenhouse gas emissions and revolutionize our energy infrastructures. This research investigates and demonstrates novel and highly efficient methods of utilising renewable …
-
Fabrication And Characterization Of Solid Oxide Cells for Energy Conversion and Storage
… highlighted energy and environmental concerns. Solid oxide cells (SOCs) have been considered as one of the promising technologies, since they can be operated efficiently both in electrolysis mode by generating hydrogen through steam electrolysis and fuel cell mode by electrochemically combining …
-
Modeling and analysis of a H₂-H₂O driven reversible solid oxide cell system for electrical energy storage applications
… and wind is heavily reliant on energy storage. Solid oxide cells (SOCs) with bidirectional operation have advantages over other types of energy storage systems since they may be deployed in time-shifting, long-duration, and seasonal storage applications while having lower life cycle …