1 / 10

CORE

CORE. Core - Design Concept. Develop a 100 kWe reactor with a 5 full-power-year lifetime Evaluation of options were based on design criteria: Low mass Launchability Safety High Reliability. Core - Design Choices. Fast Spectrum Ceramic Fuel – Uranium Nitride, 33.1 w / o enriched

barclay-cain
Télécharger la présentation

CORE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CORE

  2. Core - Design Concept • Develop a 100 kWe reactor with a 5 full-power-year lifetime • Evaluation of options were based on design criteria: • Low mass • Launchability • Safety • High Reliability

  3. Core - Design Choices • Fast Spectrum • Ceramic Fuel – Uranium Nitride, 33.1 w/o enriched • Tantalum Burnable Poison • Lithium Heatpipe Coolant • Fuel Pin Elements in tricusp configuration • External Control By Drums • Zr3Si2 Reflector material • TaB2 Control material

  4. Core - Design Specifications • UN fuel and Ta poison were chosen for heat transfer, neutronics performance, and limited corrosion • Heat pipes eliminate the need for pumps, have excellent heat transfer, and reduce system mass. • Li working fluid operates at high temperatures necessary for power conversion unit: 1800 K

  5. Fuel Pin Heatpipe Tricusp Material Core - Design Specifications (2) • Fuel pins are the same size as the heat pipes and arranged in tricusp design.

  6. 88 cm Fuel Pin Reflector and Core Top-Down View 10 cm Reflector Control Drum Reflector 42 cm Fuel Core 10 cm Reflector Zr3Si2 Reflector Total Mass: 2654kg Radial Reflector Core - Design Specifications (3) • Reflector controls neutron leakage • Control drums add little mass to the system and offer high reliability due to few moving parts

  7. Integration • Insert picture of reactor design from Joe

  8. Launch Accident Analysis • Many accidents were considered however, only accidents upon launch could not be prevented by extra safeguards. • Worst Case Scenarios: • Uniform dispersion of all U235 in atmosphere • Undeformed core with all heat pipes ruptured lands in water or wet sand

  9. Launch Accident Results • Total Dispersion of the 157 kg of U235 will increase the natural background radiation by 0.0025% • Water and Wet Sand Landing will not result in criticality

  10. Future Work • Investigate further the feasibility of plate fuel element design • Optimize core configuration • Examine long-term effects of high radiation environment on chosen materials • Develop comprehensive safety analysis for launch accidents

More Related