THE EFFECT OF ETHANOL–PERTAMAX FUEL BLENDS ON CORROSION RATE AND VISUAL CHARACTERISTICS OF FUEL TANK

MUSYAFFA, NAUFAL HANIF (2026) THE EFFECT OF ETHANOL–PERTAMAX FUEL BLENDS ON CORROSION RATE AND VISUAL CHARACTERISTICS OF FUEL TANK. Diploma thesis, POLITEKNIK KESELAMATAN TRANSPORTASI JALAN.

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Official URL: https://doi.org/10.55511/jpsttd.v16i2.765

Abstract

Previous studies on ethanol fuel blends have mainly focused on corrosion rate using weight loss methods, simplified specimens, and limited fuel variations. However, visual characteristics under real fuel tank conditions remains less explored. To address thisgap, this study examines the effect of ethanol concentration in pertamax fuel on the corrosion rate and visual characteristics of motorcycle fuel tank materials. Specimens from a 155 cc automatic motorcycle fuel tank were immersed in ethanol–pertamax blends with ethanol concentrations of 0%, 5%, 10%, 15%, 25%, and 85% for 12 weeks. A combined approach using the weight loss method and ImageJbased image processing was applied to obtain a more comprehensive evaluationof corrosion rate and visualcharacteristics.The results show that the highest corrosion rate occurred at PXE 25 with 0.057 mm/y, while the lowest was observed at PXE 0 with 0.007 mm/y. At PXE 85, the corrosion rate decreased to 0.038 mm/y, indicating a shift in corrosion behaviorat higher ethanol concentrations. Image analysis confirmed that the largest corrosion area also occurred at PXE 25.These findings indicate that ethanol concentration affects corrosion characteristics,with different corrosion responses observed at higher ethanol blends, highlighting key implications for material selection, fuel system design, and ethanol fuel policy evaluation in Indonesia.

Item Type: Thesis (Diploma)
Uncontrolled Keywords: Ethanol, Corrosion rate, Fuel tank, Weight loss method, Image processing
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Teknologi Rekayasa Otomotif > Teknologi Rekayasa Otomotif
Depositing User: 22021054 22021054
Date Deposited: 03 Jun 2026 01:09
Last Modified: 03 Jun 2026 01:09
URI: http://eprints.pktj.ac.id/id/eprint/4577

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