This paper presents the startup procedures for large pre-baked aluminum smelting pot, through actually implementing after startup management for"inside empty and outside solid"loading, fast voltage drop,lower efficiency control,fast formation of the furnace chamber,expected results are finally achieved.

Extrapolation curve optimization of physical start-up in marine reactors;

The digital physical start-up system for nuclear reactor is introduced.

During physical start-up of nuclear reactor,the curve got by lifting the control rods to extrapolate to the critical state is often in protruding shape,by which the supercritical phenomena is led.