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The transformation of the NRC: 50 years of commissioners
The dust is beginning to settle following the whirlwind of changes at the Nuclear Regulatory Commission over the past year, and 2025 ultimately may be viewed as a transformative year, as well as the year the NRC celebrated its golden anniversary. The 12 months of that milestone year brought more change to the agency in its composition, its mandate, and its relationship to the executive branch than any comparable period in the preceding four decades.
Now at 51 years and counting, the NRC is working with a full commission and issuing new rulemakings to both regulate and support the next round of nuclear deployments. With the turbulence of 2025 still fresh in our minds, Nuclear News decided it was a good time to revisit the professional backgrounds of all 42 NRC commissioners who have served over the agency’s 50-year history to see how the composition of the commission has evolved over time.
Song Yu, Zhao Jiaqing, Zhang Yiyang, Wu Xinxin (Tsinghua Univ)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 543-548
In this paper, the influence of four different entrances and exits to flow maldistribution in air-cooled heat exchangers is presented. The flow and heat transfer are computed by the numerical solution of the governing partial differential equations including the conservation equations of mass, momentum and energy. The flow maldistribution of each heat transfer tubes of four different cases are analyzed, so as the heat transfer rate. The heat transfer rate average deviation is much smaller than flow average deviation. Slight differences of total heat transfer rate are found for different cases. The reason of this phenomenon is related to the relationship between flow and heat transfer rate and the heat resistance distribution. The flow pattern in different tubes and the resistance performance of different cases are compared.
