ANALISIS PENGARUH DIMENSI ANODA DENGAN TIGA UKURAN VARIABEL TERHADAP ARUS POTENSI MENGGUNAKAN METODE DNV GL RP-B401

Corrosion is defined as the deterioration of a material (primarily metals) due to its interaction with the environment as a result of chemical reactions, either at high temperatures between metals and gases or through electrochemical corrosion that occurs in aqueous or humid air environments. Corrosion is a highly dangerous phenomenon, both directly and indirectly. Although the process of metal corrosion cannot be completely stopped, it can be controlled or slowed down, thereby delaying structural degradation. One such control method is Sacrificial Anode
Cathodic Protection (SACP), implemented in accordance with the DNVGL RP- B401 standard. The objective of this research is to determine the anode potential with varying dimensional variables, specifically diameters of 10 mm, 12 mm, and 15 mm, in relation to a cathode with a fixed surface area of 400 cm². In this
experiment, it was found that the anode with a diameter of 10 mm exhibited a potential current of -950.3 mV, while the anode with a diameter of 12 mm exhibited a potential current of -945.2 mV. The anode with a diameter of 15 mm demonstrated a more positive potential current, namely -842.5 mV, which is directly proportional to the observed decrease in anode efficiency. This occurs because, as the anode dimension increases, its potential value becomes higher and its durability, reflected by reduced weight loss, also increases.
Keywords: SACP, Anode, Cathodic, Potential Value, DNVGL, Sacrificial Anode Cathodic Protection