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Custom software speeds up, stabilizes high-profile ocean model
DOE/Oak Ridge National LaboratoryPeer-Reviewed Publication
Most modern ocean models focus on two categories of waves: a barotropic system, which has a fast wave propagation speed, and a baroclinic system, which has a slow wave propagation speed. To help address the challenge of simulating these two modes simultaneously, a team from DOE’s Oak Ridge, Los Alamos and Sandia National Laboratories has developed a new solver algorithm that reduces the total run time of the Model for Prediction Across Scales-Ocean, or MPAS-Ocean, E3SM’s ocean circulation model, by 45%.
- Journal
- The International Journal of High Performance Computing Applications
- Funder
- DOE/US Department of Energy, National Nuclear Security Administration
Metal steam turbine blade shows cutting-edge potential for critical, large 3D-printed parts
DOE/Oak Ridge National LaboratoryResearchers at the Department of Energy’s Oak Ridge National Laboratory became the first to 3D-print large rotating steam turbine blades for generating energy in power plants. Led by partner Siemens Technology, the U.S. research and development hub of Siemens AG, the project demonstrates that wire arc additive manufacturing is viable for the scalable production of critical components exceeding 25 pounds. These parts have traditionally been made using casting and forging facilities that have mostly moved abroad.
Time-tested magnesium oxide: Unveiling CO2 absorption dynamics
DOE/Oak Ridge National LaboratoryPeer-Reviewed Publication
Magnesium oxide is a promising material for capturing carbon dioxide directly from the atmosphere and injecting it deep underground to limit the effects of climate change. But making the method economical will require discovering the speed at which carbon dioxide is absorbed and how environmental conditions affect the chemical reactions involved.
- Journal
- Environmental Science & Technology
- Funder
- DOE/US Department of Energy
ORNL, Caterpillar collaborate to advance methanol use in marine engines
DOE/Oak Ridge National LaboratoryBusiness Announcement
The Department of Energy’s Oak Ridge National Laboratory and Caterpillar Inc. have entered into a cooperative research and development agreement, or CRADA, to investigate using methanol as an alternative fuel source for four-stroke internal combustion marine engines. The collaboration supports efforts to decarbonize the marine industry, a hard-to-electrify transportation sector.
Neutrons score electrochemical win for carbon-neutral ammonia
DOE/Oak Ridge National LaboratoryPeer-Reviewed Publication
Scientists from Stanford University and the Department of Energy’s Oak Ridge National Laboratory are turning air into fertilizer without leaving a carbon footprint. Their discovery could deliver a much-needed solution to help meet worldwide carbon-neutral goals by 2050.
Published in the Royal Chemical Society's Energy & Environmental Science, the study describes a sustainable electrochemical — rather than chemical — process for producing ammonia, a key ingredient for nitrogen fertilizer. In essence, the researchers used neutron scattering to understand how cycling an electric current during the conversion of nitrogen to ammonia, also known as the nitrogen reduction reaction, increases the amount of ammonia produced. This process has the potential to enable farmers to convert nitrogen, the most abundant element in our atmosphere, into ammonia-based fertilizers without emitting carbon dioxide.
Cable-Dunlap, Chi, Smith and Thornton named ORNL Corporate Fellows
DOE/Oak Ridge National LaboratoryGrant and Award Announcement
Four researchers at the Department of Energy’s Oak Ridge National Laboratory have been named ORNL Corporate Fellows in recognition of significant career accomplishments and continued leadership in their scientific fields.
ORNL engineer Karen White honored with Lifetime Achievement Award
DOE/Oak Ridge National LaboratoryGrant and Award Announcement
Oak Ridge National Laboratory’s Karen White, who works in ORNL’s Neutron Science Directorate, has been honored with a Lifetime Achievement Award. White, who manages the section that provides the machine controls,, computing infrastructure, and protection systems across all neutron science technical areas, received the award during the biennial International Conference on Accelerator and Large Experimental Physics Control Systems, held October 7-13, 2013, in Cape Town, South Africa. The award by ICALEPCS honors and celebrates an individual or individuals who throughout their careers have made exceptional, invaluable and lasting contributions to the field of control systems for large experimental physics facilities.
Researchers decode aqueous amino acid’s potential for direct air capture of CO2
DOE/Oak Ridge National LaboratoryPeer-Reviewed Publication
Scientists at the Department of Energy’s Oak Ridge National Laboratory have made a significant stride toward understanding a viable process for direct air capture, or DAC, of carbon dioxide from the atmosphere. This DAC process is in early development with the aim of achieving negative emissions, where the amount of carbon dioxide removed from the envelope of gases surrounding Earth exceeds the amount emitted.
- Journal
- Cell Reports Physical Science
- Funder
- DOE/US Department of Energy
Four scientists receive Battelle Distinguished Inventor recognition
DOE/Oak Ridge National LaboratoryGrant and Award Announcement
- Since UT-Battelle began managing ORNL in 2000, 97 ORNL researchers have reached this milestone.
- The inventors are Justin Baba, Brian Davison, James Kiggans and Vlastimil Kunc.
- Baba is the first scientist of African origin to be named a Battelle Distinguished Inventor from ORNL.