Argonne scientists evaluate gravity-driven safety systems for advanced nuclear reactors

[Marlin]

Argonne scientists evaluate gravity-driven safety systems for advanced nuclear reactors

https://interestingengineering.com/innovation/argonne-passive-decay-heat-removal-reactors

[Core Content]

Advancing nuclear reactors: Argonne tests passive decay heat removal

Researchers at Argonne National Laboratory completed empirical tests on a passive Reactor Cavity Cooling System using a 59-foot natural convection facility. The experiments evaluated how liquid water and steam interact during simulated reactor shutdowns and power fluctuations. The collected performance data will help advanced reactor vendors demonstrate safety compliance to regulators.

Argonne team studied the performance of passive cooling systems in nuclear reactors to determine decaying heat during shutdowns.

Even when a nuclear reactor goes dark, it is not truly asleep. The chain reaction stops instantly, but a residual thermal ghost remains behind. Scientists call it decay heat.

Unchecked, this persistent energy can warp steel, melt components, and turn a routine shutdown into a crisis. Now, researchers at the US Department of Energy's Argonne National Laboratory are proving that we don't need electricity or human intervention to keep it under control. But what's required is just the simple, unyielding laws of physics.

Read the full article at Interesting Engineering:
https://interestingengineering.com/innovation/argonne-passive-decay-heat-removal-reactors