CFD Analysis of the Passive Decay Heat Removal System of an LBE-Cooled Fast Reactor

Figure 1

The heat transfer process during the SBO. The main pump and the main heat exchanger stop operation under the SBO condition and the decay heat is transferred to the LBE through the core surface. And the natural circulations occur in both the main vessel and the DHRS to remove the decay heat. The ACS is fully activated after 110s.