Oak Ridge Today

House passes Manhattan Project Park provision, now up to Senate

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By Atomic Heritage Foundation

On May 22, the House of Representatives approved the National Defense Authorization Act (NDAA) of 2015, which includes a bipartisan provision to establish a Manhattan Project National Historical Park. The new park will have units at Los Alamos, N.M., Oak Ridge, Tenn., and Hanford, Wash.

U.S. Rep. Doc Hastings, chairman of the House Committee on Natural Resources, has led efforts in the House and said: “This is a positive step toward establishing the Manhattan Project National Historical Park. There is strong, bipartisan support for this measure, and it enjoys broad support from local communities and national advocates for historic preservation and parks. The goal is to enact this into law before the end of this year and today’s action demonstrates real progress towards achieving it.” [Read more…]

Startup company licenses ORNL tool that will help consumers lower energy bills

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Fiveworks Licenses ORNL Technology

Knoxville-based Fiveworx has licensed an Oak Ridge National Laboratory technology called CoNNECT that will help consumers reduce their utility bills by analyzing their home energy usage. CoNNECT inventors (from left) Olufemi Omitaomu and Budhendra Bhaduri talk with Fiveworx CEO Patrick Hunt. (Photo courtesy ORNL)

 

Knoxville-based Fiveworx has licensed an Oak Ridge National Laboratory technology that will help consumers reduce their utility bills by analyzing their home energy usage.

The ORNL technology, called Citizen Engagement for Energy Efficient Communities (CoNNECT), enables utility customers to easily monitor their energy consumption in a user-friendly Web-based platform. Fiveworx will apply the CoNNECT tool toward its mission to help utilities increase participation in their energy efficiency programs while reducing their marketing costs.

“Our goal is to motivate consumers to do five or more things to save money on their utility bills,” said Fiveworx CEO Patrick Hunt. “By combining principles of behavioral economics, consumer segmentation, big data, and predictive analytics, we help utilities give their customers a truly personalized energy savings plan that they’ll embrace and use to adopt energy efficient measures and behaviors.” [Read more…]

DOE public bus tour begins June 2

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DOE Public Bus Tour

A U.S. Department of Energy public bus tour in August 2012. (DOE photo/Lynn Freeny)

Visitors see Oak Ridge’s past and present

The U.S. Department of Energy’s 2014 Oak Ridge facilities public bus tour begins June 2 and continues through August 29. 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 attraction for tourists visiting the area. Since its inception in 1996, the DOE public tour program has attracted more than 30,000 visitors from all 50 states. The three-hour tour allows visitors to see the Oak Ridge Reservation and learn about its history. It also provides participants a chance to find out about the world-class missions underway in Oak Ridge.

Bus stops include: [Read more…]

Novel ORNL technique enables air-stable water droplet networks

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Water Droplet

Researchers at Oak Ridge National Laboratory have developed a method to create air-stable water droplet networks that are valuable for applications in biological sensing and membrane research. (Image credit: Kyle Kuykendall)

 

A simple new technique to form interlocking beads of water in ambient conditions could prove valuable for applications in biological sensing, membrane research, and harvesting water from fog.

Researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory have developed a method to create air-stable water droplet networks known as droplet interface bilayers. These interconnected water droplets have many roles in biological research because their interfaces simulate cell membranes. Cumbersome fabrication methods, however, have limited their use.

“The way they’ve been made since their inception is that two water droplets are formed in an oil bath then brought together while they’re submerged in oil,” said ORNL’s Pat Collier, who led the team’s study published in the Proceedings of the National Academy of Sciences. “Otherwise they would just pop like soap bubbles.”

Instead of injecting water droplets into an oil bath, the ORNL research team experimented with placing the droplets on a superhydrophobic surface infused with a coating of oil. The droplets aligned side by side without merging. [Read more…]

Bredesen Center graduates first class with help from ORNL, UT

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Bredesen Center

Oak Ridge National Laboratory Director Thom Mason (seated, at left) and former Tennessee Gov. Phil Bredesen sign certificates for the Bredesen Center’s first two graduates, Vincent Kandagor and Scott Curran (standing, from left) while center Director Lee Riedinger (at right) watches. (Submitted photo)

 

KNOXVILLE—Two students were the first to earn a new doctoral degree this month from the Energy Science and Engineering program founded by former Gov. Phil Bredesen in partnership with the University of Tennessee in Knoxville and Oak Ridge National Laboratory.

The General Assembly approved the program in a special session on education in January 2010. The first class enrolled in the Bredesen Center for Interdisciplinary Research and Graduate Education in fall 2011, and it is now one of UT’s fastest-growing graduate programs.

Scott Curran and Vincent Kandagor earned their doctorates in energy science and engineering at UT’s graduate hooding on Thursday, May 8.

“We’re awfully proud of Scott and Vincent,” said Bredesen Center Director Lee Riedinger. “They both transferred into our program once we’d started and were able to really shine, to really do some positive things.” [Read more…]

ORNL paper examines clues for superconductivity in an iron-based material

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FERMI Figure

A change of Hall and Seebeck effects point to large Fermi surface modification at the structural transition, preventing superconductivity at low temperatures. The change in the Fermi surface topology has been confirmed by angle-resolved photoemission spectroscopy. (Image courtesy ORNL)

For the first time, scientists have a clearer understanding of how to control the appearance of a superconducting phase in a material, adding crucial fundamental knowledge and perhaps setting the stage for advances in the field of superconductivity.

The paper, published in Physical Review Letters, focuses on a calcium-iron-arsenide single crystal, which has structural, thermodynamic, and transport properties that can be varied through carefully controlled synthesis, similar to the application of pressure. To make this discovery, researchers focused on how these changes alter the material’s Fermi surface, which maps the specific population and arrangement of electrons in materials.

“The Fermi surface is basically the ‘genetic code’ for causing a certain property, including superconductivity, in a material,” said Athena Safa-Sefat of the U.S. Department of Energy’s Oak Ridge National Laboratory, which led the research team. “We can make different phases of this material in single crystal forms and measure their structure and properties, but now we have Fermi surface signatures that explain why we can’t induce superconductivity in a certain structural phase of this material.” [Read more…]

Thinner, flexible tablets, TVs possible through UT research, visiting ORNL scientist

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David Mandrus, Stephen Pennycook, and Jiaqing Yen

David Mandrus, Stephen Pennycook, and Jiaqiang Yan, from left, recently helped in a Vanderbilt-led project that could result in paper-thin, flexible tablets and TVs. (Photo courtesy University of Tennessee)

KNOXVILLE—Researchers from the University of Tennessee in Knoxville recently garnered national attention for their part in a study that could lead to the development of tablets, televisions, and mobile devices the width of a piece of paper.

First published in Nature, the article details how researchers have been able to create wires only three atoms wide using an electron beam.

The lead researcher on the project was Vanderbilt Ph.D. student Junhao Lin, who was a visiting scientist at Oak Ridge National Laboratory at the time.

Through the ORNL connection, UT’s Stephen Pennycook, David Mandrus, and Jiaqiang Yan—all of the College of Engineering’s Department of Materials Science and Engineering—got involved. [Read more…]

More than 100 jobs terminated as B&W work on USEC centrifuge project ends

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American Centrifuge Technology Manufacturing Center

The American Centrifuge Technology Manufacturing Center in south Oak Ridge is pictured above. (Photos courtesy USEC)

But hundreds of jobs maintained in Ohio and Tennessee, USEC says

Babcock and Wilcox has terminated the employment of more than 100 workers who had been involved in the American Centrifuge project with USEC, and Monday was the last day of work for most of them, a spokesperson said.

“B&W’s involvement in the American Centrifuge Manufacturing LLC has transitioned fully to USEC, which will result in the termination of all 122 employees B&W had engaged in the effort,” said Aimee Mills, B&W media relations lead.

Mills said roughly 25 employees will be released during the next two months as the “final steps of demobilization take place” on the advanced uranium enrichment project, which has included centrifuge manufacturing in Oak Ridge and the American Centrifuge Plant in Piketon, Ohio.

“Some of those affected have been reassigned within B&W,” Mills said. “We have also provided assistance by way of job fairs and workshops to update resumes.”

Meanwhile, USEC has notified a small group of its Oak Ridge employees who worked on manufacturing activities that they would be laid off, Communications Manager Jeremy Derryberry said Tuesday. Several were transferred to other parts of the centrifuge program. [Read more…]

Living Light solar-powered home moves to Children’s Museum

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Living Light House Trailer

The University of Tennessee donated the Living Light House to the Children’s Museum of Oak Ridge, and the 750-square-foot solar-powered home was moved Saturday.

 

The University of Tennessee in Knoxville has donated its Living Light House to the Children’s Museum of Oak Ridge, and the 750-square-foot solar-powered home was moved Saturday.

The award-winning home makes more energy than it uses, said James Rose, senior lecturer in UT’s College of Architecture and Design.

Moving the 80,000-pound house was a daylong project. The Children’s Museum is in a residential area in Oak Ridge, so the museum had to move trees, excavate a slope, and create a temporary road to get to the site.

Rose said the one-room home, which has mechanical and laundry areas, will be used at the Children’s Museum for outreach and to showcase the latest energy-efficient technologies.

“This is the perfect place for this building,” said Rose, the architect of record on the project and the leader of the student architecture studio that designed it. [Read more…]

UT solar house donated, moving Saturday to Children’s Museum

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ut-living-light-house

 

KNOXVILLE—The University of Tennessee in Knoxville is donating the Living Light House— its award-winning, solar-powered project—to the Children’s Museum of Oak Ridge.

The Living Light House will move to its permanent home on Saturday, May 17. Starting at 7 a.m., the 750-square-foot, zero-energy structure, will be transported from the UT Gardens to the Oak Ridge museum at 461 W. Outer Drive. The move is expected to take several hours.

“The house has served as an ambassador for good design and energy efficiency,” said James Rose, UT architecture lecturer and lead faculty member of the Living Light project. “One of the most satisfying things about giving tours of the house is the response from children. Young people are always fascinated by the house and leave it excited about the future. I cannot think of a better place for the Living Light house to carry on this mission than at the Children’s Museum of Oak Ridge.”

The Living Light House, which was built through the efforts of more than 200 UT students, was an entry to the 2011 U.S. Department of Energy Solar Decathlon in Washington, D.C. It has traveled nearly 6,000 miles, been toured by more than 50,000 visitors, and was on exhibit at the 2012 Smithsonian Folklife Festival. [Read more…]

‘Double-duty’ electrolyte enables new chemistry for longer-lived batteries

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ORNL Battery Chemistry

When ORNL researchers incorporated a solid lithium thiophosphate electrolyte into a lithium-carbon fluoride battery, the device generated a 26 percent higher capacity than what would be its theoretical maximum if each component acted independently. (Image courtesy ORNL)

 

Researchers at Oak Ridge National Laboratory have developed a new and unconventional battery chemistry aimed at producing batteries that last longer than previously thought possible.

In a study published in the Journal of the American Chemical Society, ORNL researchers challenged a long-held assumption that a battery’s three main components—the positive cathode, negative anode, and ion-conducting electrolyte—can play only one role in the device.

The electrolyte in the team’s new battery design has dual functions: It serves not only as an ion conductor but also as a cathode supplement. This cooperative chemistry, enabled by the use of an ORNL-developed solid electrolyte, delivers an extra boost to the battery’s capacity, and extends the lifespan of the device.

“This bi-functional electrolyte revolutionizes the concept of conventional batteries and opens a new avenue for the design of batteries with unprecedented energy density,” said ORNL’s Chengdu Liang. [Read more…]

Field work complete, cleanup projects used $751 million in Recovery Act funding

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Building K-33

Building K-33 at the East Tennessee Technology Park, also known as the former K-25 site, before demolition. (DOE photo)

 

Note: This story was updated at 5:30 p.m.

The field work is complete on 27 cleanup projects at three federal sites in Oak Ridge that used $751 million in Recovery Act funds.

The U.S. Department of Energy’s Oak Ridge Office of Environmental Management, or EM, announced the end of the field work on Thursday.

“We’re done knocking down buildings and with all the work in the field,” said Mike Koentop, executive officer in Oak Ridge Office of Environmental Management. “We have paperwork left to do to close out projects.”

The American Recovery and Reinvestment Act of 2009, also known as the Recovery Act or stimulus bill, was passed by Congress and signed by President Barack Obama in February 2009. It was meant to help stimulate an economic recovery during the depths of the Great Recession, and it was intended to address long-neglected infrastructure projects and programs.

In Oak Ridge, the Recovery Act funding paid for several demolition projects such as the demolition of the 1.4-million-square-foot K-33 Building at the East Tennessee Technology Park and other projects ranging from mercury reduction at the Y-12 National Security Complex to transuranic waste processing at Oak Ridge National Laboratory. [Read more…]