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ORNL nuclear engineer selected for national reactor development position

Posted at 3:56 pm July 26, 2017
By Oak Ridge National Laboratory Leave a Comment

The U.S. Department of Energy’s Office of Nuclear Energy has selected ORNL’s Lou Qualls to serve as national technical director for molten salt reactors. (Photo courtesy DOE/ORNL)

The U.S. Department of Energy’s Office of Nuclear Energy has selected ORNL’s Lou Qualls to serve as national technical director for molten salt reactors. (Photo courtesy DOE/ORNL)

 

By Jason Ellis, ORNL Communications

The U.S. Department of Energy’s Office of Nuclear Energy has selected Lou Qualls of Oak Ridge National Laboratory as the national technical director for molten salt reactors, or MSRs. In his new role, Qualls—a nuclear engineer who joined ORNL in 1988—will serve as a liaison among the nuclear industry, the national laboratory system, and DOE in defining the future of MSR technology in the United States.

The new position was created in response to the private sector’s growing interest in MSRs as the next generation of power reactors. A significant number of nuclear plants are expected to close beginning in 2030, with most closed by 2045, as their operating licenses from the Nuclear Regulatory Commission expire. Various companies are pursuing new reactor designs to replace this loss of nuclear energy, which is the nation’s largest source of carbon-free energy and represents approximately one-fifth of electricity generated in the United States.

“There are about 10 U.S. companies developing MSR designs in hopes of seeing their technologies make it onto the grid,” Qualls said. “My job is to work with these vendors and DOE to understand how each design could fit into the energy market and to identify hurdles that could prevent these reactors from ever delivering electricity. It’s a positive step that shows the level of excitement from industry, DOE, and the national labs.”

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Bringing ideas to the forefront

Qualls will coordinate with the national technical directors for gas-cooled and sodium-cooled fast reactors to establish research and development priorities for the Office of Advanced Reactor Technologies in DOE’s Office of Nuclear Energy. He will serve as an advocate for MSRs and aim to ensure the technology is fairly considered along with the other advanced reactor types.

In the first year in the role, Qualls plans to spend much of his time listening—to the companies designing new reactors about the challenges they face; to ORNL and other national labs on the research that could assist in the process, from advanced manufacturing of reactor parts to creating modeling and simulation capabilities for testing and improving MSR designs; and to the Nuclear Regulatory Commission on how it can create a path for the licensing of advanced reactors.

“We want to vet the technology and have a healthy conversation with the nuclear community, so they understand how to make their concepts viable,” Qualls said. “We also want to identify research that will provide the greatest impact. If the national laboratory system can do research that benefits everyone and has a broad impact, we’re doing our jobs.”

The stated DOE goal is for at least two advanced reactor designs to reach technical maturity, demonstrate safety and economic benefits, and complete licensing reviews such that construction can go forward. From development to construction to licensing, it’s an aggressive vision that Qualls believes is possible and necessary.

“If we are going to replace the current fleet of reactors with new technology, we need to begin focused efforts immediately,” he said. “The nuclear industry needs to become better at evolving and incorporating new technology and MSRs provide that opportunity.”

The Molten Salt Reactor Experiment highlighted the unique capabilities of MSRs. The reactor ran successfully at ORNL from 1965 until 1969. (Photo courtesy DOE/ORNL)

The Molten Salt Reactor Experiment highlighted the unique capabilities of MSRs. The reactor ran successfully at ORNL from 1965 until 1969. (Photo courtesy DOE/ORNL)

 

Back home in East Tennessee

The Molten Salt Reactor Experiment, an MSR built at ORNL, began operations in June 1965 and ran successfully until 1969. The work showed the feasibility of these high-temperature, low-pressure reactors. It also established a foundation for understanding new materials, corrosion issues, and many other aspects of MSR technology.

More than 50 years later, that Molten Salt Reactor Experiment remains widely cited as a reason behind the increasing interest in MSRs. ORNL researchers continue to rely on its data for ongoing work in molten salt loops, MSR core simulators, and advanced manufacturing techniques for major reactor components.

“ORNL is the developer of the technology. The expertise and interest still resides in this area, but we have a limited amount of time to capture and utilize it,” Qualls said. “It’s important for the lab to acknowledge and secure the history and heritage and to be a strong focal point for the technology. We will be working closely with our university, industry and lab partners to do so as we move forward.”

ORNL is managed by UT-Battelle for the Department of Energy’s Office of Science, the single largest supporter of basic research in the physical sciences in the United States. DOE’s Office of Science is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

Note: This story was published by ORNL on Wednesday, July 26.

More information will be added as it becomes available.


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Copyright 2017 Oak Ridge Today. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Filed Under: Front Page News, Oak Ridge National Laboratory, Top Stories, U.S. Department of Energy Tagged With: advanced reactor designs, advanced reactor technologies, DOE, Jason Ellis, Lou Qualls, Molten Salt Reactor Experiment, molten salt reactors, MSRs, nuclear industry, Nuclear Regulatory Commission, Oak Ridge National Laboratory, Office of Nuclear Energy, ORNL, power reactors, U.S. Department of Energy

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