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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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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Report: New York state adding 1 GW of nuclear to fleet
New York Gov. Kathy Hochul has instructed the state’s public electric utility to add at least 1 gigawatt of new nuclear by building a large-scale nuclear plant or a collection of smaller modular reactors, according to the Wall Street Journal.
Junichi Miwa, Takeshi Mitsuyasu, Tetsushi Hino (Hitachi, Ltd.)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 1050-1055
The resource-renewable boiling water reactor (RBWR) has been proposed as an innovative boiling water reactor (BWR) that has the capability to burn transuranium elements (TRUs) using a multi-recycling process by hardening the neutron energy spectrum. In this paper, RBWR core configurations with flat radial power distribution are investigated. In general, flat distribution of the radial power will be achieved if fuel bundles with a relatively large amount of fissile nuclides are arranged in a relatively low neutron flux area except for the outermost region of the core. There are two design policies of fuel bundle arrangement for flat distribution of the radial power. One is scatter loading using the local neutron flux gradient area is intentionally produced by arranging fuel bundles. The other is zone loading using the overall neutron flux gradient due to a leakage of neutrons to the radially outer side of the reactor core. For RBWR, both loading policies are adopted in succession. First, zone loading is adopted in the outer region of the reactor core in the radial direction. The fresh fuel bundles that have a relatively large amount of fissile nuclides are arranged in the radial outer region. Scatter loading is also adopted in the inner region of the reactor core in the radial direction. The inner region is divided into several layer rings that consist of a bundle in the angular direction. Layer rings for 2nd, 3rd, and 4th cycle fuel are arranged adjacently to each other. The radial power distribution at the end of cycle (EOC) is calculated using the whole core transport calculation, and it is confirmed that the radial power of RBWR is distributed in flat shape to be applied to the combined fuel arrangement of scatter loading and zone loading.
