Research on the Corrosivity Level of Fluids in Mobile Cooling Systems Based on Temperature

Abstract

The water-cooling system plays a crucial role in preventing engine components from experiencing overheating. Minor disturbances in the cooling system can lead to overheating due to the accumulation of deposits in the fluid-passing components. Considering the above issues, corrosion is a factor that influences the performance of the cooling system. The aim of this research is to determine the corrosion level of fluid variations within the cooling system based on temperature factors. The selection of fluid variables was conducted through personal surveys in the environment of SMK – SMA Plus Darma Siswa Sidoarjo. This research method employs an experimental approach. For the boiling point test, fluid variations will be heated until boiling at the highest temperature, meeting the engine's operating temperature standard. For corrosion resistance testing, fluid variations will be immersed with a nail and soaked for 6 hours at the engine's operating temperature and 24 hours at normal closed temperature. Data collection is carried out qualitatively by observing color changes in the nail and fluid, and quantitatively using the method of measuring the difference in nail mass before and after testing. The test results are divided into four criteria: ranking of colors during operating temperature, ranking of colors during normal closed temperature, ranking of corrosion during operating temperature, and ranking of corrosion during normal closed temperature. From these four criteria, it is concluded that the final ranking from best to worst is coolant fluid, mineral fluid, PDAM fluid, AC fluid, and ACCU fluid.