Oak Ridge Today

Nuclear goes Hollywood: New film sheds light on old debate

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Pandora's Promise Panel Discussion

Jeff Binder, Oak Ridge National Laboratory’s associate lab director of nuclear science and engineering, answers an audience question during a panel discussion following a screening of “Pandora’s Promise” in Knoxville on Saturday. (Submitted photo)

By Scott Jones

About 300 people attended a showing of the new pro-nuclear film “Pandora’s Promise” and heard a panel discussion about nuclear energy on Saturday, including perspectives from Oak Ridge National Laboratory staff.

The lab worked with Regal Entertainment Group to bring the film to the Downtown West theater from July 19-25.

Few phrases carry the ideological weight of the words “nuclear power.” [Read more…]

ORNL makes low-cost carbon fiber available to American manufacturers

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Carbon Fiber Technology Facility

Operated by Oak Ridge National Laboratory, the Carbon Fiber Technology Facility is accepting proposals from companies that want to test low-cost carbon fibers manufactured at the pilot scale plant. Pictured here are textile-grade acrylic fibers entering the first of four oxidation ovens, where they gradually turn from white to yellow, auburn, brown, then black. Once fully oxidized, the fiber is ready to run through the higher-temperature furnaces, which convert the oxidized fiber to carbon fiber. (Submitted photo)

Companies interested in testing the latest in low-cost carbon fiber have a new opportunity to partner with the U.S. Department of Energy’s Carbon Fiber Technology Facility.

The CFTF, operated by Oak Ridge National Laboratory as part of the department’s Clean Energy Manufacturing Initiative, opened earlier this year to find ways to reduce carbon fiber production costs and to work with the private sector to stimulate widespread use of the strong, lightweight material.

In its first months of operation, the CFTF used traditional raw materials to assure the new pilot scale manufacturing line would produce a commercial-quality product. With that goal accomplished, the facility now will use less expensive “precursor” materials that can be turned into carbon fiber more cost-effectively. [Read more…]

Students benefit from ORNL’s surplus equipment donations worth $1.7 million

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Sydney Burchell

Sydney Burchell, a sophomore at Morristown-Hamblen High School East, uses ORNL’s donated equipment to study waste management at distilleries. She and John Hale, a senior and lead researcher for the project, won first place at the INTEL-International Science and Engineering Fair in Phoenix, Ariz. (Submitted photo)

Old or unused laboratory equipment that has outlived its usefulness at Oak Ridge National Laboratory and other U.S. Department of Energy sites doesn’t have to sit idle or wind up in the scrap heap. In 2012, ORNL donated $1.7 million worth of surplus property to nonprofits, including local schools, where it is now helping to inspire future scientists.

DOE works with the state of Tennessee to enable the surplus government property to go to school science labs and nonprofit agencies that can make effective use of the equipment.

Local schools have received fume hoods, water baths, centrifuges, and tilt tables, as well as ultrasonic cleaners, balances, and a variety of expensive glassware. The donated tools, outdated at any national lab, are now treasures for high school students, allowing them to conduct STEM research with high quality materials at a reasonable cost. [Read more…]

CASL milestone validates reactor model using TVA data

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CASL VERA Simulation

This CASL visualization shows the thermal distribution of neutrons in Watts Bar Unit 1 Cycle 1 reactor core at initial criticality, as calculated by the VERA program. (Image courtesy Oak Ridge National Laboratory)

The Consortium for Advanced Simulation of Light Water Reactors this week announced that its scientists have successfully completed the first full-scale simulation of an operating nuclear reactor.

Headquartered at Oak Ridge National Laboratory, CASL is modeling nuclear reactors on supercomputers to help researchers better understand reactor performance with much higher reliability than previously available methods, with the goal of ultimately increasing power output, extending reactor life, and reducing waste.

Simulation results from the Virtual Environment for Reactor Applications (VERA) program, which was developed by CASL, were compared with actual data provided by the Tennessee Valley Authority’s Watts Bar Nuclear Plant in Tennessee, which confirmed its accuracy. [Read more…]

ORNL wins six R&D 100 awards

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Da Vinci Fuel-in-Oil Measurement System

The Da Vinci Fuel-in-Oil Measurement System is among the six Oak Ridge National Laboratory technologies recognized with a 2013 R&D 100 award. (Submitted photo)

Researchers at the Oak Ridge National Laboratory have received six R&D 100 awards, presented each year by R&D Magazine in recognition of the year’s most significant technological innovations.

“My sincere congratulations to the winners of this year’s R&D 100 Awards,” said Energy Secretary Ernest Moniz. “The scientists and engineers who developed these award-winning technologies at the cutting edge facilities across our national labs are keeping Americans at the forefront of the innovation community and assuring our nation’s economic competitiveness and national security.”

The six awards bring ORNL’s total of R&D 100 awards to 179 since their inception in 1963. This year, ORNL scientists and engineers received awards for the following technologies: [Read more…]

ORNL’s Flanagan elected fellow of American Nuclear Society

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George Flanagan

George Flanagan

George Flanagan of the U.S. Department of Energy’s Oak Ridge National Laboratory has been elected fellow of the American Nuclear Society.

The ANS recognized Flanagan’s leadership in the field of nuclear safety, especially in the area of liquid metal reactor safety, space reactor safety, and the safety of smaller research reactors and for the applications of probabilistic risk assessment to reactors. [Read more…]

Titan supercomputer at ORNL completes acceptance testing

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Titan Supercomputer at Oak Ridge National Laboratory

The Titan supercomputer at Oak Ridge National Laboratory was ranked as the world’s fastest supercomputer in November 2012. (Photo courtesy of ORNL)

By Leo Williams

Oak Ridge National Laboratory’s Titan supercomputer has completed rigorous acceptance testing to ensure the functionality, performance, and stability of the machine, one of the world’s most powerful supercomputing systems for open science.

The U.S. Department of Energy machine, the first to combine different types of processing units to maximize performance at such a large scale, ranked as the fastest supercomputer in the world in the November 2012 list published at http://www.top500.org/. Titan, a Cray XK7 supercomputer, is capable of more than 27,000 trillion calculations each second—or 27 petaflops. [Read more…]

Three ORNL staff members cited for vehicle technologies work

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Scott Curran

Scott Curran

Ron Graves

Ron Graves

Three Oak Ridge National Laboratory staff members—Scott Curran, Ron Graves, and Janet Hopson—were recognized following a U.S. Department of Energy Vehicle Technologies Office, or VTO, annual merit review.

Curran was recognized with a 2013 VTO Research and Development Award for “his leadership in transitioning reactivity controlled compression ignition combustion from a single cylinder to a multi-cylinder engine using bio-renewable fuels.” [Read more…]

New all-solid sulfur-based battery outperforms lithium-ion technology

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ORNL Lithium-Sulfur Battery

A new all-solid lithium-sulfur battery developed by an Oak Ridge National Laboratory team led by Chengdu Liang has the potential to reduce cost, increase performance, and improve safety compared with existing designs. (Submitted photo)

Scientists at Oak Ridge National Laboratory have designed and tested an all-solid lithium-sulfur battery with approximately four times the energy density of conventional lithium-ion technologies that power today’s electronics.

The ORNL battery design, which uses abundant low-cost elemental sulfur, also addresses flammability concerns experienced by other chemistries.

“Our approach is a complete change from the current battery concept of two electrodes joined by a liquid electrolyte, which has been used over the last 150 to 200 years,” said Chengdu Liang, lead author on the ORNL study published this week in Angewandte Chemie International Edition. [Read more…]

Science Saturdays attract hundreds of students for lectures, tours

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Science Saturday Tour of Spallation Neutron Source

Oak Ridge National Laboratory’s Clarina De la Cruz, left, gives a tour of the Spallation Neutron Source to Science Saturday attendees Allison Campbell, Michael Campbell, Krista Barrett, and Joseph Gibbs. (Image courtesy of ORNL)

By Morgan McCorkle

Hundreds of science-minded students bypassed Saturday morning cartoons this semester, opting instead to participate in the first year of Oak Ridge National Laboratory’s Science Saturdays program.

Open to students in grades 8-12, the program’s free weekend lectures and hands-on activities centered on the science of rainbows, robotics and remote handling, the materials genome, crystals, biofuels, supercomputing, climate change, and more. [Read more…]

ORNL researcher wins DOE Hydrogen and Fuel Cells R&D Award

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Karren More

Karren More

Karren L. More, a researcher at Oak Ridge National Laboratory, has received the 2013 DOE Hydrogen and Fuel Cells Program R&D Award in recognition of her leadership of ORNL’s project on microstructural characterization of fuel cell materials and for her role as a subcontractor on multiple DOE-funded fuel cell research and development projects.

More’s experience with a variety of electron microscopy techniques has enabled unprecedented levels of characterization of a variety of materials used in catalysts, supports, ionomers, gas diffusion layers, and membranes. She has collaborated on numerous fuel cell durability and aging studies with other DOE national laboratories and leading manufacturers such as 3M, General Motors, Ballard, AFCC, Nissan, Nuvera, and UTC.

More works in the Materials Science and Technology Division.

ORNL researcher to receive Honor Medal of Aurel Stodola

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Hua-Tay Lin

Hua-Tay Lin

Hua-Tay Lin, a researcher at Oak Ridge National Laboratory, has been selected to receive the 2013 Honor Medal of Aurel Stodola by the Slovak Academy of Sciences. Lin is being recognized for his research activities and significant contributions in sciences on high-temperature mechanical behavior of ceramics and composites.

Lin works in ORNL’s Materials Science and Technology Division.