Oak Ridge Today

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…]

Urban design leader named newest UT-ORNL Governor’s Chair

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Phil Enquist

Phil Enquist

KNOXVILLE—Philip Enquist, partner in charge of urban design and planning and leader of the City Design Practice at Skidmore, Owings and Merrill, has been named the 16th University of Tennessee-Oak Ridge National Laboratory Governor’s Chair. Skidmore, Owings, and Merrill is one of the world’s leading urban planning, architecture, and engineering firms, a press release said.

Enquist and a select research team will serve as Governor’s Chair for High Performance Energy Practices in Urban Environments and will be affiliated with and administer projects through the UT College of Architecture and Design.

The Governor’s Chair team will be a research partnership among many designers at the firm who specialize in sustainable urbanism and high-performance buildings. Skidmore, Owings, and Merrill’s City Design Practice is the world’s most highly awarded urban planning group.

The contract between ORNL, UT, and the design firm is pending, the press release said. [Read more…]

Oak Ridge senior Andrew Skipper earns UT-Battelle scholarship

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Andrew Skipper and Thom Mason

Andrew Skipper, left, the 2014 UT-Battelle Scholarship winner, is congratulated by ORNL Director Thom Mason. (Submitted photo)

Andrew Skipper, a senior at Oak Ridge High School, is the recipient of the 2014 UT-Battelle Scholarship to the University of Tennessee.

The four-year, $20,000 scholarship is presented annually to a graduating senior who plans to study science, engineering, or mathematics at UT and whose mother or father works at Oak Ridge National Laboratory.

Andrew is the son of David and Maria Skipper. David Skipper works in ORNL’s Environmental Protection and Waste Services Division, and Maria Skipper works in ORNL’s Business Management Services Division. His grandmother, Margie Skipper, worked in ORNL’s Laboratory Protection Division for many years prior to her retirement in 1999.

Andrew’s goal at UT is to pursue a bachelor’s degree in chemical and biomolecular engineering before enrolling in graduate or medical school. [Read more…]

DOE explores options for enriched uranium technology for national security

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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)

USEC, UT-Battelle to preserve centrifuge enrichment capabilities on interim basis

USEC and UT-Battelle have signed a $33.7 million, five-month contract to continue operating centrifuges and conducting research and development activities on a uranium enrichment project deemed important for national security and possible commercial use.

The agreement with UT-Battelle, which manages Oak Ridge National Laboratory, was signed May 1. The five-month term ends Sept. 30. The new agreement includes options for two six-month extensions valued at about $41.7 million each. The total price of the contract with the options is roughly $117 million.

USEC, which is now an ORNL subcontractor, previously performed research, development, and demonstration work on the project, the American Centrifuge Project, under an agreement with the U.S. Department of Energy that had been in place since June 12, 2012. That cost-sharing agreement expired April 30. [Read more…]

Society of Automotive Engineers honors Storey, Wagner, Sluder

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Robert Wagner, John Storey, and Scott Sluder

The Society of Automotive Engineers has honored ORNL researchers, from left, Robert Wagner, John Storey, and Scott Sluder. (Submitted photo)

Three researchers from the Fuels, Engines, and Emissions Research Center at Oak Ridge National Laboratory received major awards at the recent Society of Automotive Engineers World Congress.

John Storey was elected an SAE Fellow. The fellowship is the highest level of SAE membership, honoring significant contributions to the automotive field.

Storey was recognized for pioneering new techniques in the characterization of particulate matter and exhaust emissions and for leading a critical sub-committee for the diesel fuel sulfur rule. SAE International also recognized Storey for multiple contributions to the development of lean exhaust emissions control. [Read more…]

‘Atomic switcheroo’ explains origins of thin-film solar cell mystery

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Current Maps

Cross-sectional electron beam-induced current maps show the difference in cadmium telluride solar cells before (pictured above) and after (below) cadmium chloride treatment. The increased brightness after treatment indicates higher current collection at the grain boundaries. (Submitted photo)

Treating cadmium-telluride (CdTe) solar cell materials with cadmium-chloride improves their efficiency, but researchers have not fully understood why. Now, an atomic-scale examination of the thin-film solar cells led by Oak Ridge National Laboratory has answered this decades-long debate about the materials’ photovoltaic efficiency increase after treatment.

A research team from ORNL, the University of Toledo, and the U.S. Department of Energy’s National Renewable Energy Laboratory used electron microscopy and computational simulations to explore the physical origins of the unexplained treatment process. The results are published in Physical Review Letters, or PRL.

Thin-film CdTe solar cells are considered a potential rival to silicon-based photovoltaic systems because of their theoretically low cost per power output and ease of fabrication. Their comparatively low historical efficiency in converting sunlight into energy, however, has limited the technology’s widespread use, especially for home systems. [Read more…]

More than 60 Thunderbirds expected for Mockingbird Run this weekend

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Mockingbird Run

The Sixth Annual Mockingbird Run will be in Oak Ridge from Friday to Sunday. (Submitted photo)

 

Car enthusiasts from 10 states will gather in Oak Ridge from Friday, May 2, to Sunday, May 4, for the sixth annual Mockingbird Run hosted by the Smoky Mountain Classic Thunderbird Club. The Mockingbird Run is expected to bring in more than 60 Thunderbirds for a weekend packed with tours, friendship, and fun.

“We are excited to host this year’s Mockingbird Run, and we encourage the community to welcome the Smoky Mountain Classic Thunderbird Club to town,” Oak Ridge Convention and Visitors Bureau Director Katy Brown said. “We have worked closely with this organization to make this year’s event an entertaining and educational visit.”

Conference planners focused on the “top secret” theme this year in an effort to add mystery and intrigue. Participants will visit local attractions, learn the significance of various historic sites, and dine in local restaurants. Y-12 National Security Complex Historian Ray Smith will guide the group on a tour of the Y-12 New Hope Center and serve as a guest speaker for the event. The club will also tour Oak Ridge National Laboratory on Saturday. Members of the K-9 Search On Site LLP team will also be on hand for a demonstration that morning. [Read more…]

‘One more house’: UT-Battelle helps honor Myricks through Habitat project

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Tim and Teresa Myrick and Habitat for Humanity

UT-Battelle is supporting a Habitat for Humanity project that honors Tim and Teresa Myrick. (Photo: Jason Richards)

UT-Battelle joins community in honoring Myrick’s years of service through Habitat for Humanity project this summer

UT-Battelle is contributing $10,000 in matching donations to a Habitat for Humanity project dedicated to Tim and Teresa Myrick, who have been enduring supporters of the organization that provides shelter for deserving families.

Tim Myrick’s handiwork dots the Oak Ridge landscape. He was a major contributor to the modernization campaign at Oak Ridge National Laboratory that resulted in a sparkling new east campus. He helped lead the renovation of the town’s high school.

He’s been involved in all the Anderson County Habitat for Humanity projects in some way—58 in all.

He wants to add to that tally. There is some urgency in the matter.

“With the cancer thing I set priorities: fighting cancer, the Habitat project, Living Waters, building a new church, doing some fly fishing,” he said. [Read more…]

Splitting UPF project into two buildings could save money, senator says

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U.S. Senator Lamar Alexander

Lamar Alexander

Money could be saved on the new Uranium Processing Facility at the Y-12 National Security Complex by splitting up the project into two buildings rather than one, U.S. Sen. Lamar Alexander said during a congressional hearing in Washington, D.C., on Wednesday.

One building could be used for high-security work, Alexander said during a hearing of the Energy and Water Development Subcommittee. That high-security building would cost several times as much as a second building used for low-security work, Alexander said.

Not all of the work has to be conducted in a high-security facility, the Tennessee Republican said, and some of it could be conducted in the low-security building.

It wasn’t immediately clear if the two-building proposal is included in a so-called Red Team Review of the UPF project. That report could be made public this week. Federal officials and members of Congress have already been briefed on it. [Read more…]