Abstract
The safe and economical operation of any nuclear power system relies, to a great extent, on the success of the fuel and the materials of construction (Allen et al., 2010). Distinct from conventional power generation methods, a nuclear reactor is characterized by a harsh level of irradiation, very high operating temperature, and extremely corrosive environments. The behavior of fuels and materials as well as systems for fission reactors is thus complex due to the changes that the extreme environments generate on them. These kinds of changes may be seldom seen in other engineering disciplines, but this poses demanding requirements over reactor fuels, materials and systems. The design of reactor fuels, materials and systems subject to extreme environments is a major obstacle to enhancing reactor safety and economic performance of nuclear power systems. It is also essential in increasing innovation for current reactor operation improvement and future reactor design optimization. To address the challenges related to extreme reactor environments, the team of editors organizes the Research Topic "Reactor Fuels, Materials and Systems under Extreme Environments" in the journal Frontiers in Energy Research. Finally, 28 articles are collected, covering the theoretical, numerical and experimental studies on reactor fuels, materials and systems under extreme environments.
Highlights
Specialty section: This article was submitted to Nuclear Energy, a section of the journal Frontiers in Energy Research
To address the challenges related to extreme reactor environments, the team of editors organizes the Research Topic “Reactor Fuels, Materials and Systems under Extreme Environments” in the journal Frontiers in Energy Research
In light water reactor studies, Zeng Z. et al present three-dimensional modeling of thermal-mechanical behavior of accident tolerant fuels; Lu W. et al deliver coupled modeling and simulation of phase transformation in zircaloy-4 fuel cladding under loss-of-coolant accident conditions; Liu S. et al work on multiphysics modeling of thorium-based fuel performance with Cr-coated SiC/SiC composite under normal and accident conditions; Yu M. et al show multiphysics investigation on coolant thermohydraulic conditions and fuel rod behavior during a loss-of-coolant accident; Zhang X. et al write 3dimensional multiphysics modeling of behaviors of pressurized water reactor fuel rods with missing pellet surface; Li X. et al investigate hydrogen atom and molecule adsorptions on FeCrAl (100) surface by a firstprinciple study
Summary
Specialty section: This article was submitted to Nuclear Energy, a section of the journal Frontiers in Energy Research. Reactor Fuels, Materials and Systems Under Extreme Environments The behavior of fuels and materials as well as systems for fission reactors is complex due to the changes that the extreme environments generate on them.
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