| Abstract Scope |
After 1.5 years of block shutdown caused by the low level of Toba’s Lake at Inalum’s power plant, some of the pots in good condition have not been reconstructed. This research examines a novel semi-partial pot repair method in PT Inalum’s aluminum smelter. The method aims to improve operational efficiency and reduce costs, particularly during power outages or emergency shutdowns. The research compares semi-partial repair to standard partial and full repairs, focusing on process duration, material usage, and performance over a 43-month period. Semi-partial repair involves minimal disassembly and minor patching, preserving much of the pot's original lining. The study found that this method requires less time and material than partial repair, completing reconstruction 6 days faster and reducing costs by USD 55,951 compared to partial repairs and by USD 174,426 compared to full repairs. Despite using older lining materials, the semi-partial repair maintained stable pot performance and extended pot life. This method implies that semi-partial repair is a more cost-effective and efficient alternative to standard partial procedures, ensuring consistent production during power outages or emergency situations while maintaining aluminum output quality. |