Investigation of Plate Scale Testing for Heat Exchanger with Various Acid Solutions
Investigasi Pengujian Kerak Plat untuk Heat Exchanger dengan Variasi Larutan Asam
DOI:
https://doi.org/10.21070/ups.6483Keywords:
Heat Exchanger, Plate and Gasket, corrosion, phosphoric acid(H3PO4), hydrogen peroxide (H2O2), Chemical Descaler P 100, Metallographic testAbstract
This study examines the effectiveness of three types of chemical liquids in descaling Heat Exchanger Plate and Gasket and their impact on corrosion. The experimental method was carried out by immersing the plate in three fluids: Phosphoric Acid/H3PO4 (yellow), Hydrogen peroxide/H2O2 (red), and Chemical Descaler P 100 (green) for 30 minutes. Test results showed that Chemical Descaler P 100 had the most effective descaling ability, but also caused significant uniform attack. Phosphoric Acid descaled well without causing significant corrosion, while H2O2 showed pitting corrosion but was less effective in descaling. In conclusion, phosphoric acid, characterized by its yellow color, gave the best results with adequate descaling and the least corrosion impact.
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