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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.
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Nuclear Science and Engineering
Fusion Science and Technology
NEA issues call to action in report on nuclear cost reductions
A new report from the Paris-based OECD Nuclear Energy Agency declares that nuclear power is needed for countries to meet their Paris Agreement decarbonization and energy security policy goals, but that governmental support for a rapid reduction in the cost of new nuclear capacity through the creation of certain policy frameworks is likely necessary.
Jon T. Van Lew, Alice Ying, Mohamed Abdou
Fusion Science and Technology | Volume 68 | Number 2 | September 2015 | Pages 288-294
Technical Paper | Proceedings of TOFE-2014 | dx.doi.org/10.13182/FST14-937
Articles are hosted by Taylor and Francis Online.
Pebble-scale models of the interactions inside packed beds are critical for determining alterations to thermophysical properties in the wake of changes to the packed bed due to cracking, sintering, or creep-deformation of the ceramic pebbles. Simultaneously, the helium purge gas flow through the pebble bed can change; while not specifically playing a role as coolant, it does have an impact on the thermal transport in the volumetrically heated bed. We present numerical tools that are capable of resolving pebble-scale interactions coupled to bed-scale thermofluid flow. The new computational techniques are used to show that maximum temperatures in pebble beds do not increase drastically in spite of the significant amount of cracking induced in our numerical model. Furthermore a complete flow field of helium moving through densely packed spheres is modeled with the lattice-Boltzmann method to reveal the strong effect of slow-moving helium gas on flattening temperature profiles in pebble beds with nuclear heating.