Two-stage isothermal and non-isothermal passivation forms protective oxide films on steel, reducing oxygen consumption during initial operation.
Segmented screens rotate independently to bypass debris, ensuring continuous cooling supply despite high load.
Concave facets on an octagonal spacer lower fretting wear while deflectors in intermediate grids enhance coolant mixing without increasing hydraulic resistance.
Membrane diffusion strips tritium from water into hydrogen streams for subsequent enrichment.
Hexahedral and trihedral cells with bent deflectors improve coolant circulation while minimizing hydraulic resistance in high-energy fuel assemblies.
A flow barrier structure redirects downcomer fluid to mix with sub-cooled feedwater in a reactor pressure vessel assembly.
Auxiliary and main swirlers reduce pressure loss while maintaining high steam quality in boiling water reactor cores.
Pressure-gas pulses separate nuclear fuel pellets pneumatically, eliminating mechanical contact errors and radioactive dust contamination.
A cage-less duplex bearing design utilizes cobalt alloy rolling elements to enhance stiffness and operational accuracy.
A boiling water reactor shroud replacement method uses removable fastening devices to connect new segments, enabling rapid installation without welding.
Basket uses tightening means to press internal partition walls against peripheral housing surfaces, increasing thermal contact area.
Pre-heating circuit sections creates density differences that initiate natural circulation, eliminating hydraulic resistance from forced pumping equipment.
Gravity bias and eddy current brakes ensure rapid reactor shutdown during power loss, preventing unintended startups.
A nuclear reactor fuel assembly lower grid uses a central pin and bushing connection to stabilize structural form under operational loads.
A nuclear circulation system injects prevention fluid onto filter surfaces to agitate accumulated fibers and particles.
Segmenting the primary circuit into independent shells isolates pumps from 500°C heat, resolving material corrosion trade-offs.
A self-supporting stack of columnar elements defines a central passage with constant cross-section to provide continuous guidance.
Core-shell oxide particles in dispersion steel resolve the strength-plasticity trade-off for nuclear cladding.
Acousto-optic leakage monitoring system combines acoustic emission and spectroscopy sensors to detect pipeline stress changes.
Wedge mechanisms convert bolt rotation into radial clamping forces to fix measurement pipes, reducing stress on welded joints and operator radiation exposure.
Replaceable reactor segments enable capacity and enrichment changes without welding, eliminating costly modifications and cracking risks.
A hybrid reactor cooling system uses gravity-driven water flow and natural convection to maintain core temperature.
A fuel element throttle element adjusts pressure loss coefficients via a central impact body and webs.
A vibrating mill fragments uranium dioxide agglomerates while preserving crystallite size.
A top nozzle features two-stage hold-down springs to optimize axial positioning forces for nuclear fuel assemblies.
Standardized inner canisters employ active refrigeration to remove decay heat, reducing required cooling time from ten years to one point five years.
A self-regulating neutron generator uses liquid fuel expansion to dampen reactions without active control.
A sealed electric energy cell uses a palladium anode to generate stable electrical power directly from hydrogen gas without external fuel input.
An annular water reservoir provides passive heat rejection while a shell-less heat exchanger prevents biological fouling and corrosion.
A neutron generator uses a central electrode bore to reverse ion flight paths and enable beam collision.
Segmented cruciform control rod blades enable independent movement during seismic events, resolving the trade-off between structural strength and scrammability.
A reactor unit transfers nuclear potential energy from dipolar molecules to a circuit using high voltage fields.
A lowering device integrated into a shielding cover aligns with container edges to support segment removal operations.
A fuel ball sensor uses external coils to detect pebbles through pipeline walls without internal intrusion.
Inclined separating plates guide liquid metal flow to accelerate bubble growth and rapid vertical removal within the quench tank.
Switchable polarity in a palladium cathode plasma arc enables compact thermal energy generation without large system complexity.
Coating spheroidized UO2 fuel particles with a continuous BeO matrix reduces internal temperatures and mitigates thermal stresses in nuclear reactors.
Clamp apparatus reduces vibration amplitude and frequency while eliminating weld-induced stress corrosion cracking risks.
Gamma rays induce photodisintegration of deuterium nuclei to determine concentration without removing the pressure tube.