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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
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.
Parveen K. Jain
Nuclear Technology | Volume 72 | Number 3 | March 1986 | Pages 301-311
Technical Paper | Radiation Protection and Health Physics Practices and Experience in Operating Reactors Internationally / Fission Reactor | doi.org/10.13182/NT86-A33768
Articles are hosted by Taylor and Francis Online.
A first-principle model has been developed to perform steady-state and transient analyses of pressurized water reactor plants on microcomputers. The model includes representations for all major components and control systems of the nuclear steam supply systems of plants that have U-tube steam generators. The process of inputting data is simple, and it is easy to set up for simulations of various transient scenarios. The model is accompanied by sophisticated preand postprocessors to help users define or modify input files, start model executions, and analyze output results. It has been benchmarked against plant data and RELAPS for various steady-state and transient scenarios. Satisfactory comparisons have been obtained. Results are presented for full-power steady-state conditions and for a steam generator tube rupture transient.
