Wiki has a few examples of such systems/designs: https://en.wikipedia.org/wiki/Passive_nuclear_safety#Examples_of_passive_safety_in_operation https://en.wikiped

Wiki has a few examples of such systems/designs: https://en.wikipedia.org/wiki/Passive_nuclear_safety#Examples_of_passive_safety_in_operation https://en.wikipedia.org/wiki/Passive_nuclear_safety#Example...