Oak Ridge Today

Test reactor would help with decarbonization, supporters say

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Kairos Power has proposed a Hermes test reactor at the Heritage Center, the former K-25 site in west Oak Ridge. A model of the test reactor is pictured at a U.S. Nuclear Regulatory Commission meeting in Oak Ridge on Wednesday, Nov. 16, 2022. (Photo by John Huotari/Oak Ridge Today)

Note: This story was updated at 11:20 a.m. Dec. 1.

A nuclear test reactor proposed in west Oak Ridge could help as the United States tries to lower carbon dioxide emissions and reduce the effects of climate change, supporters said during a public meeting last week.

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NRC seeks public comment about test reactor

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Kairos Hermes test reactor (Image via Nuclear Regulatory Commission)

The U.S. Nuclear Regulatory Commission is seeking public comment and will have a public meeting and online seminar Wednesday about issuing a construction permit for a proposed test reactor in Oak Ridge.

The NRC has issued a draft environmental impact statement for the construction permit for a Kairos Hermes Test Reactor. The nuclear reactor would not produce electricity, but it would test Kairos Power’s fluoride salt-cooled, high-temperature reactor technology, according to the NRC.

Completed in September, the draft environmental impact statement includes the NRC staff’s preliminary analysis of the environmental impacts of issuing a construction permit to Kairos.

“After weighing the environmental, economic, technical, and other benefits against environmental and other costs, the NRC staff’s preliminary recommendation, unless safety issues mandate otherwise, is that the operating license be issued as requested,” the NRC said in a notice published in the Federal Register.

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Frady named CROET president, CEO

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Teresa Frady

Teresa Frady has been named president and chief executive officer of the Community Reuse Organization of East Tennessee.

CROET is a regional economic development nonprofit organization that helps find new uses for U.S. Department of Energy facilities and property, including at sites that are no longer used or needed. The goal is to spur private development and create jobs.

Frady’s appointment was announced during the January meeting of the CROET Board of Directors. She replaces Lawrence Young, who is retiring after serving more than 26 years as CROET’s president and CEO.

“I am so pleased that Teresa has accepted the challenge of leading CROET into its next phase,” Young said in a press release. “Teresa has been an integral part of the success of the organization, and I am confident that she, as my successor, will enhance upon the legacy established by the organization’s founders.”

Frady began her career with CROET 22 years ago, the press release said. She has risen through the ranks with increasing responsibility by serving in such roles as account manager, accountant, chief accountant, chief operating officer, and executive director.

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Test reactor could be built at Oak Ridge, Idaho

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Oak Ridge National Laboratory Sign
Photo by ORNL

Oak Ridge National Laboratory and Idaho National Laboratory are being considered as potential sites for a test reactor, where fuels and materials could be tested for new types of nuclear power reactors.

It’s not clear where the test reactor would be built at ORNL, if it’s built there.

The fast-neutron reactor, called the Versatile Test Reactor, would be sodium-cooled and small, about 300 megawatts thermal. It would be based on the GE Hitachi PRISM power reactor. That’s a small module design based on the Experimental Breeder Reactor-II, which operated for more than 30 years in Idaho, the U.S. Department of Energy said in a notice published in the Federal Register on Monday. (Fast neutrons are highly energetic neutrons that travel at speeds ranging from tens to thousands of kilometers per second.)

The Versatile Test Reactor would be a pool-type reactor and use metal alloy fuels that could include uranium, plutonium, zirconium and other alloying metals. It would not be a power reactor, and it would not generate electricity. It could generate at least 4×1015 neutrons per square centimeter per second.

Reactor operations could start as early as the end of 2026, DOE said. Fuel for the reactor could be fabricated at Idaho National Laboratory or the Savannah River Site in South Carolina.

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ORNL, Shanghai Institute of Applied Physics cooperate on salt-cooled reactors

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ORNL and SINAP Salt-cooled Test Reactors

Representatives from Oak Ridge National Laboratory and the Shanghai Institute of Applied Physics (SINAP) met at ORNL to discuss plans for building a salt-cooled test reactor. Pictured in front of ORNL’s molten salt test loop are (from left) David Felde, ORNL; Yang Zou, SINAP; Guanyuan Wu, SINAP; Xiaohan Yu, SINAP; Naxiu Wan, SINAP; Zhimin Dai, SINAP; David Holcomb, ORNL; Kun Chen, SINAP; Kevin Robb, ORNL; Mike Laufer, University of California at Berkeley; Guimin Liu, SINAP; and Weiju Ren, ORNL. (Photo courtesy ORNL)

 

Representatives from Oak Ridge National Laboratory and Shanghai Institute of Applied Physics met at ORNL last week as part of an agreement between the two institutions to work together on the advancement of salt-cooled nuclear reactor technologies.

At the meeting, SINAP staff members were expected to describe their plans for building the first salt-cooled test reactor, and the two sides began planning the next steps in the shared research project.

The Cooperative Research and Development Agreement, or CRADA, between ORNL and SINAP focuses on accelerating scientific understanding and technical development of salt-cooled reactors, specifically fluoride salt-cooled high-temperature reactors, or FHRs. The project will draw on ORNL’s expertise in fuels, materials, instrumentation and controls, design concepts, and modeling and simulation for advanced reactors, as well as the lab’s experience in the design, construction and operation of the Molten Salt Reactor Experiment, the only molten salt reactor ever built. [Read more…]