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Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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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Latest News
Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
S. Usman, S. Abdallah, M. Hawwari, M. Scarangella, L. Shoaib
Nuclear Technology | Volume 157 | Number 1 | January 2007 | Pages 65-73
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT07-A3802
Articles are hosted by Taylor and Francis Online.
Thermal fluid physics associated with natural convection is investigated by using Rayleigh-Bénard convection experiments and numerical simulations. An analogy is proposed between the phenomenon of natural convection and an integrator circuit. This analogy is a logical extension of the resistor circuit analogy for conduction. Both experimental data and thermo-fluid simulations support the proposed model. It is observed that the characteristic time constant of the phenomenon of convection is a function of Prandtl number and acceleration due to gravity. The effect of reduced gravity and increased fluid viscosity is discussed. These results can significantly assist in thermal fluid analysis of future space reactors.