The chart illustrates the nuclear reactor when it is cooled down by heat exchanger.
There are the nuclear reactor and heat exchanger. The nuclear reactor consists of pressure vessel, boron control rods, and concrete radiation, shielding the nuclear reactor. Heat exchanger is connected to the reactor through cool gas duct and hot gas duct.
In detail, inside the reactor, there are graphite moderators that contain uranium fuel elements. As heat exchanger take water through water circulator, cool gases go between graphite moderators. After they pass by moderators, they return to heat exchanger and heat water that previously make cool gases. As a result, steam is produced and get out of heat exchanger through turbo-alternator.
In conclusion, the nuclear reactor gathered cool gases from heat exchanger, absorbing water. Then, the gases pass between graphite moderators. Eventually, the gases become hot and return to heat exchanger. As a result, water in heat exchanger is heated by the gases and produce steam.
