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The future of fuels: Uncertainty quantification study of mid-century ammonia and methanol production costs
(Peer reviewed; Journal article, 2023)Fuels supplied 76% of global final energy consumption in 2021. Although ongoing electrification efforts can significantly reduce this dominant share, fuels will continue to play a leading role in the global energy system. ... -
GaAs/AlGaAs Nanowire Array Solar Cell Grown on Si with Ultrahigh Power-per-Weight Ratio
(Peer reviewed; Journal article, 2021)Here we demonstrate a more effective use of III–V photoconversion material to achieve an ultrahigh power-per-weight ratio from a solar cell utilizing an axial p-i-n junction GaAs/AlGaAs nanowire (NW) array grown by molecular ... -
Galvanic Deposition of Pt Nanoparticles on Black TiO2 Nanotubes for Hydrogen Evolving Cathodes
(Peer reviewed; Journal article, 2021)A galvanic deposition method for the in-situ formation of Pt nanoparticles (NPs) on top and inner surfaces of high-aspect-ratio black TiO2-nanotube electrodes (bTNTs) for true utilization of their total surface area has ... -
GaN/AlGaN nanocolumn ultraviolet light-emitting diode using double-Layer graphene as substrate and transparent electrode
(Peer reviewed; Journal article, 2019)The many outstanding properties of graphene have impressed and intrigued scientists for the last few decades. Its transparency to light of all wavelengths combined with a low sheet resistance makes it a promising electrode ... -
Gas electrodes with nickel based current collectors for molten carbonate electrolyte thermo-electrochemical cells
(Peer reviewed; Journal article, 2019)Thermo-electrochemical cells with inexpensive molten carbonate electrolyte and (CO2|O2) gas electrodes allow the possible conversion of high temperature waste heat from industrial processes into electricity. The cell ... -
Gas Flow and Pressure Drop in Charge Material in Silicon Production
(Peer reviewed; Journal article, 2022)Gassing, outbursts of high-rate gas flows through the taphole, is a phenomenon that sometimes occurs during tapping of silicon furnaces. In addition to being an HSE challenge, this might also affect the tapping, while the ... -
Gas switching reforming (GSR) for power generation with CO2 capture: Process efficiency improvement studies
(Peer reviewed; Journal article, 2019)This paper presents the process improvement studies of a combined cycle power plant integrated with a novel gas switching reforming (GSR) process for hydrogen production with integrated CO2 capture. The overall process is ... -
Gas Switching Reforming (GSR) for syngas production with integrated CO2 capture using iron-based oxygen carriers
(Peer reviewed; Journal article, 2019)The process behavior of a Gas Switching Reforming (GSR) reactor was studied using three different iron-based oxygen carrier materials: Iron-oxide on Alumina, Iron-Nickel oxide on Alumina and Iron-Ceria on Alumina. It was ... -
Gas switching reforming for flexible power and hydrogen production to balance variable renewables
(Peer reviewed; Journal article, 2019)Variable renewable energy (VRE) is expected to play a major role in the decarbonization of the electricity sector. However, decarbonization via VRE requires a fleet of flexible dispatchable plants with low CO2 emissions ... -
Gas Switching Reforming for syngas production with iron-based oxygen carrier-the performance under pressurized conditions
(Peer reviewed; Journal article, 2019)A four-stage Gas Switching Reforming for syngas production with integrated CO2 capture using an iron-based oxygen carrier was investigated in this study. The oxygen carrier was first reduced using dry methane, where high ... -
Gas switching technology: Economic attractiveness for chemical looping applications and scale up experience to 50 kWth
(Peer reviewed; Journal article, 2022)Gas switching technology (GST) was introduced to facilitate operation and scale-up of pressurized chemical looping-based technologies thus bringing the expected benefits of reducing costs and energy penalty of CO2 capture. ... -
Gaseous reduction of Mn ores in CO-CO2 atmosphere
(The Minerals, Metals & Materials Series;2367-1181, Chapter, 2018)The efficiency in production of manganese ferroalloys is dependent on the gaseous reduction of the higher manganese oxides in the ores used as raw materials. The materials, descending in the furnace, will meet the furnace ... -
Gassing During Tapping of Silicon
(Peer reviewed; Journal article, 2022)During tapping of metal from silicon furnaces, a significant amount of gas is often released through the tap-hole. The gas is combustible, and a flame jet is created which poses a safety threat to operators. Due to the ... -
The generality of the standard 2D TFM approach in predicting bubbling fluidized bed hydrodynamics
(Peer reviewed; Journal article, 2013)Hydrodynamic simulations of a pseudo-2D bubbling fluidized bed were carried out and compared to experiments conducted over a wide range of flow conditions. The primary purpose of this study was to assess the generality of ... -
GHGT-12 Performance of the IGCC with distributed feeding of H2 in the gas turbine burner
(Peer reviewed; Journal article, 2014)A main hurdle for realizing the IGCC with CO2 capture is the lack of gas turbines capable of burning hydrogen in an environmental-friendly, yet energy-efficient manner. With currently proposed combustion schemes an efficiency ... -
Global Assessment of Mycobacterium avium subsp. hominissuis Genetic Requirement for Growth and Virulence
(Peer reviewed; Journal article, 2019) -
Global Circular Economy Scenario in a Multiregional Input-Output Framework
(Journal article; Peer reviewed, 2019)In a resource-constrained world of an estimated 10 billion people in 2050 with the same material aspirations of today’s high-income nations, there is no question: The future economy will need to be circular. From a policy ... -
Governing physics of shallow and deep subsea gas release
(SINTEF Proceedings;1, Chapter; Conference object; Peer reviewed, 2015)A modelling concept for studying the resulting bubble plume from a subsea gas release is presented. Simulation results show good consistency with available experimental data. The modelling concept is applied to assess the ... -
Grain boundary corrosion in TiO2 bone scaffolds doped with group II cations
(Journal article; Peer reviewed, 2019) -
Grain boundary segregation in Pd-Cu-Ag alloys for high permeability hydrogen separation membranes
(Peer reviewed; Journal article, 2018)Dense metal membranes that are based on palladium (Pd) are promising for hydrogen separation and production due to their high selectivity and permeability. Optimization of alloy composition has normally focused on bulk ...