Oak Ridge Today

Water line rupture at Y-12 kills small fish, salamanders

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East Fork Poplar Creek

East Fork Poplar Creek starts at a spring at the Y-12 National Security Complex and flows through Oak Ridge. It has been listed on a state list of impaired waterways due to mercury and polychlorinated biphenyls, among other things.

About six million gallons of chlorinated water spilled into East Fork Poplar Creek from a ruptured drinking water line at the Y-12 National Security Complex, and an estimated 8,500 minnow-sized fish and almost 30 salamanders were killed in the area of the incoming chlorinated water, a media advisory said.

It said the rupture in the potable water line was found Saturday. The numbers of dead fish and salamanders were determined by workers from the Oak Ridge National Laboratory Biological Monitoring and Abatement Program. [Read more…]

FORNL monthly luncheon lecture Tuesday

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Liyuan Liang

Liyuan Liang

The Friends of ORNL will hold its monthly luncheon lecture meeting on Tuesday, June 11.

This month, Liyuan Liang and members of her team will discuss “ORNL Mercury Research Program and the Story of Methylation Gene Discovery.” This meeting is open to the public.

Liang, who heads the U.S. Department of Energy-funded mercury research program at Oak Ridge National Laboratory, earned a bachelor’s degree in civil engineering from Northeastern University at Boston, and a master’s and doctorate from California Institute of Technology (Caltech) in environmental engineering sciences. [Read more…]

The leg bone is connected to the hip prosthesis: Students analyze artificial implants

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ASM Materials Camp Lab Instrument

Student Hunter Stombaugh loads a material sample into the Saphir 550.3, a laboratory instrument used to grind and polish samples before placing them in an electron microscope for analysis. (Submitted photos)

Fifteen high school students and one college freshman recently got up close and personal with lab equipment worth nearly a half-million dollars at the ASM International Materials Camp. During the weeklong camp, students performed failure analyses on prosthetic implants including a hip prosthesis, pelvic clamps, a tibial nail, and tibial component. An area surgeon provided the sterilized implants, along with X-rays showing the implants before they were removed from patients.

The ASM Materials Camp is organized and sponsored by Y-12 National Security Complex, Oak Ridge National Laboratory, Tech 20/20, and the University of Tennessee in Knoxville. Steve Dekanich, an engineer in B&W Y-12’s Quality Assurance, is the camp co-chairman. [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…]

Energy Secretary Moniz visits Y-12 National Security Complex

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Energy Secretary Visits Y-12

U.S. Energy Secretary Ernest Moniz, right, tours the Highly Enriched Uranium Materials Facility during his visit Monday to the Y-12 National Security Complex. Joining him are, from left, B&W Y-12 President and General Manager Chuck Spencer, Julie Huff of B&W Y-12’s Materials Management Organization, B&W Y-12 Senior Vice President of Security Rod Johnson, and NNSA Production Office Manager Steve Erhart.

New U.S. Energy Secretary Ernest Moniz visited the Y-12 National Security Complex this week.

Before touring production and storage facilities at the site, Moniz held an all-hands meeting with Y-12, Oak Ridge National Laboratory, and federal employees at Y-12’s New Hope Center. Joining him at the meeting was U.S. Rep. Chuck Fleischmann, a Tennessee Republican whose district includes Oak Ridge. [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…]

Theoretically twice as fast, Chinese supercomputer could bump Titan from No. 1 spot

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Tianhe-2 Lights

Lights on the Chinese Tianhe-2 supercomputer, which has a theoretical peak that is twice as fast as the Titan supercomputer at Oak Ridge National Laboratory. (Photo courtesy Jack Dongarra)

A new Chinese supercomputer is theoretically twice as fast as the Titan supercomputer at Oak Ridge National Laboratory, and it could bump Titan from the No. 1 spot on the Top 500 list that will come out on June 17, one of the co-authors of the list said Wednesday.

Titan, which reached the No. 1 spot on the semiannual Top 500 list in November, has a theoretical peak of 27 petaflops, or roughly 27,000 trillion calculations per second.

The Chinese supercomputer, Tianhe-2, also known as TH-2 or Milkyway-2, has a theoretical peak of 54.9 petaflops. It also has about twice as much memory as the Titan system, said Jack Dongarra, a Top 500 co-author, University of Tennessee faculty member, and distinguished research staff member in ORNL’s Computer Science and Mathematics Division. [Read more…]

Guest column: H.M.S. Carbon Fiber

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By Leslie Agron and Pat Fain

Anyone a Gilbert and Sullivan fan?

“When I was a lad I served a term / As office boy to an attorney’s firm. /
I cleaned the windows and I swept the floor, / And I polished up the handle of the big front door.” (HMS Pinafore)

So, how does this go in Oak Ridge? Perhaps: Oak Ridge National Laboratory’s Carbon Fiber Technology Facility will revolutionize the choice of materials used in manufacturing. Major manufactures, such as auto companies, will be falling over themselves soon to locate here, so as to capitalize on the technical information to be transferred from ORNL (possibly, but it might be a few years out yet). They will all want sites in Horizon Center, next to the ORNL demonstration facility, to be closest to the technology (maybe, but remember that Nissan found a Middle Tennessee location adequate for transfer of battery technology they consider vital to their future).

Carbon fiber manufacturing is a high energy-utilizing process. ORNL’s demonstration facility could take most of the 10-megawatt energy capacity at Horizon Center (true, but Horizon Center was designed as a commercial park, not as an industrial park). So we need a large project to bring 20 megawatts of additional electrical capacity into Horizon Center right away to meet this pressing need (hmm…has there been someone knocking at our doors lately that they have not been telling us about? What we seem to need right now is an incremental project to put in a lesser amount of power, especially at peak load times, so that the one or two parcels we might sell soon at Horizon Center will have adequate power available—else they are correct that nothing might sell). [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…]

Roane State, ORNL, industries train workers in composites, advanced manufacturing

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John Thornton at Carbon Fiber Technology Facility

John Thornton, left, a graduate of Roane State’s Advanced Materials Training and Education Center and an intern at Oak Ridge National Laboratory’s Carbon Fiber Technology Facility, chats with Roane State President Chris Whaley. (Submitted photos)

John Thornton of Clinton graduated from Roane State Community College’s Advanced Materials Training and Education Center, or AMTEC, a year ago.

Today, he works in one of the most innovative places in the country.

“It’s been an amazing experience,” Thornton said. “It was a once-in-a-lifetime opportunity to be a part of this and hopefully develop a career out of it.”

Thornton is one of 13 AMTEC trainees interning at Oak Ridge National Laboratory’s Carbon Fiber Technology Facility. The $35 million plant is a new advanced manufacturing facility designed to reduce the cost of carbon fiber—a critical material for efficient, lightweight vehicles, next-generation wind turbines, and a wide array of other consumer and industrial products. [Read more…]

DOE’s public bus tour begins Monday

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The U.S. Department of Energy’s 2013 Oak Ridge facilities public bus tour begins June 3 and continues through Aug. 30. The tour offers visitors a first-hand look at the DOE’s Oak Ridge facilities and provides historical commentary on the transformation of the Oak Ridge Reservation during the past 70 years.

The reservation-wide tour is a popular destination for tourists visiting the area. Since its inception in 1996, the DOE public tour program has attracted more than 29,000 visitors from all 50 states. The three-hour tour allows visitors to see the reservation and learn historical facts and updates on the world-class missions under way in Oak Ridge. [Read more…]

Energy secretary to visit ORNL Monday

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Ernest Moniz

Ernest Moniz

He was confirmed by the U.S. Senate in a 97-0 vote on May 16, and on Monday, Ernest Moniz will visit Oak Ridge National Laboratory for the first time as energy secretary.

Moniz will meet with the media at the Spallation Neutron Source.

A former under secretary of the U.S. Department of Energy, Moniz was sworn in as the nation’s 13th Secretary of Energy on May 21. [Read more…]