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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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
K. H. Bang, M. L. Corradini
Nuclear Science and Engineering | Volume 108 | Number 1 | May 1991 | Pages 88-108
Technical Paper | doi.org/10.13182/NSE91-A23809
Articles are hosted by Taylor and Francis Online.
An experimental investigation of stratified vapor explosions and scaling is conducted by constructing test sections of two different sizes and using two different fluid pairs. The horizontal lengths of the interaction vessels are 20 and 50 cm (geometric scale ratio: 2:5). The two liquid pairs are water and liquid nitrogen, and water and Freon-12, with water being the hot liquid. The interactions are either triggered by an external trigger or allowed to occur spontaneously depending on the liquid pair and initial conditions. The major experimental variables are initial water temperature, liquid layer depths, and magnitude of the external trigger pressure. Interaction pressures, mechanical work release, and depth of intermixing are measured. The water/Freon-12 pair produces more violent interactions than the water/liquid nitrogen. In both cases, the explosion propagation speeds are supersonic, ranging from 40 to 250 m/s. The small depths (≤1 cm) of liquid-liquid mixing during the explosion propagation are observed in both liquid pairs. A simple model for the depth of intermixing is derived, and the result shows reasonable agreement with the experimental observations. The length of the liquid layer interface and the depth of the top liquid appear to be the key geometric parameters in stratified vapor explosions.