Abstract
We have studied effectiveness of devices that inserts negative reactivity under both ULOF (Unprotected Loss of Coolant) and UTOP (Unprotected Transient Over Power) event of large fast reactor for enhancing safety. We investigated potential reactivity by replacing fuel subassembly with subassembly-type devices containing liquid fuel in tubes to enhance axial expansion reactivity feedback effect and to have "Controlled material Relocation; CMR" effect. Preliminary study indicated that the proposed liquid metal fuel device has possibility to shutdown both for UTOP and ULOF events by replacing 10-15% of fuel assemblies into the core, prior to melting fuels in driver core.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
