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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Latest News
Senate EPW Committee to hold Nieh nomination hearing
Nieh
The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as commission at the Nuclear Regulatory Commission.
Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.
Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.
A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.
D. Moghul, J. C. Luxat
Nuclear Technology | Volume 205 | Number 1 | January-February 2019 | Pages 104-118
Technical Paper | doi.org/10.1080/00295450.2018.1515411
Articles are hosted by Taylor and Francis Online.
Experimental studies of thermal interactions of cold liquid droplets impinging on metal surfaces have been performed and the result of these studies are summarized in this paper. In these experiments rapid, energetic (explosive) breakup of the liquid drops were observed using high-speed video camera recordings. These energetic interactions occurred over a range of high temperatures of the metal surfaces and varied with the type of metal employed. Three metals were used in the study, namely, copper, brass, and stainless steel. The test sections included curved-plate (sections machined from metal cylinders) and flat-plate geometries. The choice of metals was determined by the objective of establishing the influence of thermal diffusivity of the hot material on the thermal interaction between the cold liquid droplet and the hot metal surface, and the two metal surface geometries were used to study the influence of droplet spreading behavior after impact with the hot metal surface. Metal surface temperatures ranged from 30°C to 700°C and controlled single water droplets at a temperature of 25°C were released from a specially designed rig employing a small fast–opening/closing solenoid valve. Experimental results are presented in this paper that demonstrate the processes that occur during the interaction of the droplet with the hot metal surface during a time frame of 1 to 20 ms.