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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Ho Nieh nominated to the NRC
Nieh
President Trump recently nominated Ho Nieh for the role of commissioner in the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.
Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.
Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.
From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.
Brett J. Menaker, Russell E. Allen, Harry E. Painter
Nuclear Technology | Volume 91 | Number 1 | July 1990 | Pages 75-80
Technical Paper | Safety of Next Generation Power Reactor / Nuclear Safety | doi.org/10.13182/NT90-A34442
Articles are hosted by Taylor and Francis Online.
Containment cooling using natural convection and radiation is a key passive safety feature studied for a 600-MW(electric) advanced small pressurized water reactor. A free-standing cylindrical steel containment vessel is surrounded by a reinforced concrete shield building configured as a chimney. Various methods to enhance natural-convection cooling were evaluated. The evaluation and selection process considered effectiveness, constructibility and effect on schedule, cost, degree of passivity, inspection and maintenance requirements, operational problems, and simplicity. As a result of these evaluations, a combination of fins and convection from the dome in addition to the cylinder is selected.
