ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
Karol J. Mysels
Nuclear Technology | Volume 44 | Number 2 | July 1979 | Pages 203-209
Technical Paper | Reactor | doi.org/10.13182/NT79-A32255
Articles are hosted by Taylor and Francis Online.
In a high-temperature gas-cooled reactor, there is a narrow gap between the fuel stick and the graphite septum separating it from the rapidly flowing helium coolant. Porosity of the graphite permits a small part of the helium to flow through the gap. This parasitic “transverse flow” may be significant in fission product transport. The extent and pattern of this flow is calculated in terms of the resistivities to gas flow: axially for the gap and radially for the septum. The latter was measured for a number of Fort St. Vrain elements, and the former was obtained from specifications. The calculated flow in a fuel hole amounts to a fraction of 1 cm3/s on the average and may reach slightly over 1 cm3/s.
