Dwi Wandana, Argak (2023) Perbandingan Efisiensi Inhibitor Organik Dan Anorganik Pada Penurunan Laju Korosi Material Radiator. Other thesis, Fakultas Teknik Mesin.

Text 183310679.pdf - Submitted Version Restricted to Registered users only Download (12MB) | Request a copy

Abstract

The radiator is a system or component that functions to keep the engine temperature in ideal condition. The cooling system is prone to leakage and clogging problems caused by corrosion. One method used to overcome corrosion is the addition of inhibitors. Inorganic inhibitors have been proven to reduce the rate of corrosion but have a negative effect because the material is not environmentally friendly and toxic. Based on this, the use of inorganic inhibitors needs to be limited. In this study, the efficiency of organic and inorganic inhibitors in reducing the corrosion rate will be compared. Inorganic inhibitor used is Sodium Chromate (Na2CrO4) with concentrations of 0.5%, 0.7%, and 0.9%. Meanwhile, the organic inhibitors were Cottonseed Oil with various concentrations of 25%, 30% and 35% for 21 days of immersion in each inhibitor. The results showed that cottonseed oil can reduce the corrosion rate. The lowest corrosion rate was found in the addition of 25% cotton ore oil with an average corrosion rate of 0.1614 mm/y with an average corrosion protection efficiency of 27.3%. However, this result is still lower than the use of 0.9% sodium chromate which produces an average corrosion rate of 0.0815 mm/y with an efficiency of 62.8%.

Actions (login required)

View Item