The reactor will operate as long as it is supplied the minimum amount of fuel shown below. When fuel is depleted it will be replaced with a new one and spent fuel or any other corresponding product will be returned.
By dragging the orange slider to the right, you define the desired power level maintained in the reactor. This affects the amount of steam the reactor generates and how fast it burns through the fuel. All the heat generated needs to be used. Any extra heat can slowly build up, eventually leading to a reactor overheating. Basic reactors don’t have automated power regulation which makes their heat output fixed.
Nuclear reactor was critically overheated and is shutting down. Depending on severity, this may cause loss of loaded fuel, damage to the building (loss of maintenance), and leak of radiation.
Cooling is deployed in case the reactor starts to overheat, and that typically happens when water is not supplied fast enough to be converted into steam (or steam output gets stuck). Cooling is not mandatory if you are not using automatic power regulation. However, it is highly recommended to have it as it provides extra protection and helps to avoid any potential overheating.
redsquirrel
坡道