M.N. Batoei - Almahdi-hormozal aluminium smelter, P.O. Box: ۷۹۱۷۱-۷۶۳۸۵, Bandar Abass, Iran
B. bahman nejad - Almahdi-hormozal aluminium smelter, P.O. Box: ۷۹۱۷۱-۷۶۳۸۵, Bandar Abass, Iran
H. iran shahi - Almahdi-hormozal aluminium smelter, P.O. Box: ۷۹۱۷۱-۷۶۳۸۵, Bandar Abass, Iran
B. Baharvand - Almahdi-hormozal aluminium smelter, P.O. Box: ۷۹۱۷۱-۷۶۳۸۵, Bandar Abass, Iran

In this Research the details of preheat stages, bath up and metal pouring, the pots number 186(new method without anode effect) and 38(old method with anode effect) through 175KA-D18 technology, and pots number 88((new method without anode effect) and 103(old method with anode effect) by technology 230kA-D20 have been Compared and studied. our calculations have shown that in these technologies for starting up the one pot, we have respectively 11.89 and 21.41 Mwh reduction energy consumption for one pot. It seems with this new method we would have such reduction 3532.96Mwh for the other of the pots up to the end of year.

potline start up; Without Anode effect