An Utilized Method of Passive Cooling in Nuclear Reactor

Natural circulation loops (NCLs) give a very well planned of removing heat from a peak-temperature source to a nadir temperature sink in the absence of using any automatic device. That the principle of the circulating fluid, heated from lower end and cooled from higher end, to flow under the impact of gravity, the difference in fluid density between the two vertical arms being the driving force. Flow under natural circulation is basically less stable and it created instabilities, The heat supplied by the heater created the buoyancy force and flow of the fluid in the NCL. If heating power in heater will increase the flow rate of the fluid is also increase. On further heating to the heater, the cooled fluid enter to the riser section and the buoyancy forces reduced.