ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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!
Latest Magazine Issues
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Chul-Hwa Song
Nuclear Technology | Volume 196 | Number 3 | December 2016 | Pages 421-445
Technical Paper | doi.org/10.13182/NT16-91
Articles are hosted by Taylor and Francis Online.
This paper introduces current issues, challenges, and future directions of nuclear thermal-hydraulic (T-H) safety research, viewed in close conjunction with new developments in advanced reactor systems and simulation tools and lessons learned from the Fukushima accident.
Two technical concerns are introduced to illustrate some of the limitations in our current understanding of important T-H phenomena that are very relevant to nuclear safety. The first is reflood heat transfer, which has been an important safety issue for a long time, and the second is the multidimensional T-H phenomena appearing in nuclear reactor systems, which have rather recently drawn significant attention in the nuclear community. These concerns are discussed by taking some recent research examples and emphasizing their critical relevance to nuclear reactor safety.
Then, some challenging issues for the advancement of nuclear T-H safety technologies are identified and briefly discussed in close conjunction with recent research efforts, and perspectives on advanced nuclear T-H safety research are presented.