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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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!
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Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
IAEA promoting nuclear energy with G20
The International Atomic Energy Agency launched a collaboration with the Group of 20 this week to highlight the key role that nuclear energy can play in achieving energy security and climate-change goals.
The aim of this first-of-its-kind partnership with G20—the world’s largest economic group—is to build momentum for nuclear power. This is the first time the IAEA has presented to G20 on issues relating to nuclear power.
S. D. Bondarenko, I. A. Alekseev, O. A. Fedorchenko, K. A. Konoplev, Т. V. Vasyanina
Fusion Science and Technology | Volume 71 | Number 4 | May 2017 | Pages 605-609
Technical Note | doi.org/10.1080/15361055.2017.1290484
Articles are hosted by Taylor and Francis Online.
Heavy water is used as a neutron moderator and coolant in nuclear power and research reactors. During operation of heavy water reactors, heavy water becomes contaminated with tritium and protium. Protium comes from various sources, such as a result of isotope exchange from constructional materials and sorbents, from the atmosphere as water vapor, and from the faulty equipment in the form of water. Tritium is produced in heavy water owing to neutron capture by deuterium atoms. Thus, heavy water reactors require facilities to keep deuterium concentrations within operating margins and remove tritium. A schematic diagram of a detritiation plant has been developed to maintain the characteristics of heavy water in the reflector of reactor. The plant is designed to address the problems related to management of heavy water at the reactor site. Protium recovery capacity of the plant is not a fixed value. It can vary widely depending on the actual leakage of light water in a heavy water reactor loop. The initial data for modeling were obtained in the course of long-term operation of EVIO pilot plant. The evaluation of the basic parameters of the installation has been done using computer models.